mc: trastorno de la marcha eaneurologiauruguay.org/home/images//deficitb12.pdf · s. cordonal...

27
Ma. A. B. A. No Reg.: 770.085 56 años Sexo femenino Raza Negra Diestra Primaria incompleta (3º) Ama de Casa Cno. Maldonado Km. 16 FC.: 14/11/05 MC : Trastorno de la marcha EA : Comienza hace 3 meses con dificultad en la marcha que refiere como disminución de fuerzas en MM.II., global, de instalación insidiosa, lentamente progresiva que la lleva a deambular con apoyo unilateral. Agrega concomitantemente déficit sensitivo en MM.II. que refiere como “caminar en el aire” y que empeora claramente en la oscuridad. Refiere además edema MII hasta raíz de muslo. Niega alteraciones esfinterianas. No refiere nivel sensitivo en tronco. No dolor raquídeo ni radicular. No alteraciones en MMSS ni a nivel craneal. No síntomas respiratorios.

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Page 1: MC: Trastorno de la marcha EAneurologiauruguay.org/home/images//deficitb12.pdf · s. cordonal posterior ... sÍndrome del asa ciega: por estancamiento del contenido intestinal y sobrecrecimiento

Ma A B ANo Reg 770085

56 antildeosSexo femenino

Raza NegraDiestra

Primaria incompleta (3ordm)Ama de Casa

Cno Maldonado Km 16FC 141105

MC Trastorno de la marchaEA Comienza hace 3 meses con dificultad en la marcha

que refiere como disminucioacuten de fuerzas en MMII global de instalacioacuten insidiosa lentamente progresiva que la lleva

a deambular con apoyo unilateral Agrega concomitantemente deacuteficit sensitivo en MMII que refiere

como ldquocaminar en el airerdquo y que empeora claramente en la oscuridad Refiere ademaacutes edema MII hasta raiacutez de muslo Niega alteraciones esfinterianas No refiere nivel sensitivo en tronco No dolor raquiacutedeo ni radicular No alteraciones

en MMSS ni a nivel craneal No siacutentomas respiratorios

AEA En mayo 2005 fue internada por cuadro de repercusioacuten general y siacutendrome funcional aneacutemico de varios meses de evolucioacuten A destacar de la paraclinica Hb 7 VCM 93 GB 1200 Nt 280 PLT 35000 Metabolismo Fe N Vit B12 169 Ac Foacutelico N Interpretaacutendose el cuadro hematoloacutegico como pancitopenia de causa multicarencial se realiza Tto con Complejo B Ac Foacutelico Sulfato Ferroso y Calcio (todo por VO) llegando a nuevo Hemograma Hb 97 GB 2800 PLT 262000 por lo que se otorga alta hospitalaria quedando pendiente Mielograma que mostroacute finalmente meacutedula oacutesea rica con reactividad eritroide y megaloblastos marcados polilobocitos alteraciones morfoloacutegicas de la serie eritroide y granular Anisopoiquilocitosis cuerpos de Howell anillos de Cabot La paciente continuoacute hasta la consulta con el mismo Tto indicado al alta

AP Dislipemia en Tto c Atorvastatina No HTA No DM No ETS No Tab ni OH No exp Toacutexicos

AF Nada a destacar MSEC Deficitario

EFN Bradipsiquica apaacutetica FAI sp PC sp Maseterino normal SM sp SE MM SS TONO discreta espasticidad de pronadores

bilateral y simeacutetrica FUERZAS conservadas ROT aumentados con aumento del area y difusioacuten Hoffman y Troumlemers (+) COORDINACIOacuteN normal SENSIBILIDAD Normal

TRONCO sp No nivel sensitivo MM II TONO espasticidad (Ash 1) ext y add

FUERZAS paresia global moderada vence gravedad opone resistencia REFLEJOS rotuliano vivo con aumento del area y difusioacuten aquiliano algo disminuido bilateral y simeacutetrico Babinski bilateral Rossolimo y Mendel - Bechterew en flexioacuten SENSIBILIDAD hipopalestesia global 4 seg eias apalestesia distal Sensibilidad termoalgesica conservada

ESTATICA Signo de Romberg sin latencia MARCHA Ataacutexica Pareto-espaacutesticaEFEN Edema MII hasta raiacutez de muslo

1) iquestCuaacutel es el diagnoacutestico sindromaacutetico y topograacutefico

2) iquestCuaacutel es la causa de esta complicacioacuten neuroloacutegica

3) iquestPlanteariacutea diagnoacutesticos diferenciales en lo etioloacutegico

4) iquestQueacute estudios se deben solicitar5) iquestCuaacutel es el tratamiento correcto de esta

entidad6) iquestQueacute hecho puede plantearse como

desencadenante de la complicacioacuten neuroloacutegica referida

1) iquestCuaacutel es el diagnoacutestico sindromaacutetico y topograacutefico

S CORDONAL POSTERIOR S PIRAMIDAL

S NEUROANEacuteMICO

DCSM

DESMIELINIZACION DEFICIT DE VITAMINA B 12 TRASTORNO DE LA ABSORCIOacuteN GASTRITIS ATROFICA AUTOINMUNE ANTICUERPOS ANTIFACTOR INTRINSECO

DCSA + ANEMIA MEGALOBLASTICA

+ HIPOVITAMINOSIS B12

RESECCIOacuteN GASTRICA O ILEAL SIacuteNDROME DEL ASA CIEGA POR ESTANCAMIENTO DEL CONTENIDO INTESTINAL Y SOBRECRECIMIENTO BACTERIANO QUE

COMPITE CON LA CBL DE LA INGESTA Y PUEDE OCURRIR POR DIVERTICULOSIS YEYUNAL ENTEROANASTOMOSIS TUBERCULOSIS CIRUGIacuteAS PREVIAS ENFERMEDAD DE CROHN FIacuteSTULAS INFILTRACIOacuteN LINFOMATOSA TAMBIEacuteN PUEDE EXISTIR SOBRECRECIMIENTO BACTERIANO SI ESTAacute ALTERADA LA MOTILIDAD INTESTINAL COMO EN LA ESCLERODERMIA O AMILOIDOSIS O EN LA HIPOGAMMAGLOBULINEMIA

S NO DISOCIACIOacuteN B12 OMEPRAZOL COLCHICINA NEOMICINA FENITOINA BIGUANIDAS ETANOL ENFERMEDAD CELIACA

DIPHYLLOBOTRIUM LATUM (CESTODO)

LACTOVEGETARIANOS ESTRICTOS

LACTANTES DE MADRES CON DEF VIT B12 INTOXICACIOacuteN POR OacuteXIDO NITROSO DEFECTO GENEacuteTICO EN LA METILMALONIL COENZIMA A (COA) MUTASA SIacuteNDROME DE ZOLLINGER-ELLISON POR INACTIVACIOacuteN DE LAS ENZIMAS PANCREAacuteTICAS RADIOTERAPIA LOCAL QUE AFECTE AL IacuteLEON O IRRADIACIOacuteN CORPORAL TOTAL INFECCIOacuteN POR VIH SE HAN DETECTADO NIVELES BAJOS DE CBL EN UN 10-35 POR CIENTO Y SE HA DEMOSTRADO

MALABSORCIOacuteN NO CORRE FI ENFERMEDAD INJERTO CONTRA HUEacuteSPED QUE AFECTE AL INTESTINO DELGADO SIacuteNDROME DE IMERSLUND DEFECTO CONGEacuteNITO DE LOS RECEPTORES INTESTINALES DE FI ANOMALIacuteAS EN EL METABOLISMO DE LA VIT B12 DEacuteFICIT CONGEacuteNITO DE TRANSCOBALAMINA II ACIDURIA

CONGEacuteNITA METILMALOacuteNICA Y HOMOCISTINURIA

HEMOGRAMA DOS B12 FGC - BIOPSIAAC ANTIFACTOR INTRINSECO AC ANTICELULAS PARIETALES

NEOPOLIGLANDULAR

COBALAMINA 1000 gammas im diacutea x 1 SEMANA

1 SEMANA X 1 MES 1 MES de por VIDA

LA ldquoTRAMPArdquo DEL ACIDO FOLICO

Copyright copy 2007 by the American Roentgen Ray Society

Ravina B et al Am J Roentgenol 2000174863-865

52-year-old man with

Subacute combined

degeneration of

spinal cord

Rev Meacuted Chile 2004 132 1377-1382Mielopatiacutea por deacuteficit de vitamina B12 caracterizacioacuten cliacutenica de 11 casosJorge Nogales-Gaete

Reversible Myelopathy in a 34-Year-Old Man With Vitamin B12 DeficiencySEAN J PITTOCK MD TROY A PAYNE MD AND C MICHEL HARPER MD

Mayo Clin Proc 200277291-294

Copyright copy2008 Canadian Medical Association or its licensors

Wong C L et al CMAJ 2008178279-281

Magnetic resonance imaging scans of the brain showing changes consistent with cobalamin deficiency

N Engl J Med 1952 Jul 3247(1)15-7 Links

Studies on the mutual effect of suboptimal oral doses of vitamin B12 and folic acid in pernicious anemia

REISNER EH WEINER L

PMID 14941273 [PubMed - indexed for MEDLINE]

J Lab Clin Med 1959 Jan53(1)22-38 Links

Folic acid and vitamin B12 in pernicious anemia studies on patients treated with these substances over a ten year period

WILL JJ MUELLER JF BRODINE C KIELY CE FRIEDMAN B HAWKINS VR DUTRA J VILTER RW

PMID 13621020 [PubMed - indexed for MEDLINE]

Rev Meacuted Chile 2004 132 1377-1382

ldquoNos llama la atencioacuten la asociacioacuten al menos temporal entre el aumento de casos observados y el inicio del programa de suplementacioacuten de la harina con aacutecido foacutelico (22 mgkilo) iniciada en enero de 2000 en Chilerdquohellip ldquoAtendiendo a esta potencial situacioacuten la autoridad sanitaria deberiacutea organizar un estudio formal al respecto o en su defecto canalizar centralmente un registro de notificacioacuten obligatoria de casos de alteraciones neuroloacutegicas centrales atribuibles a deacuteficit de vitamina B12rdquo

Arch Intern Med 1979 Jan139(1)47-50

Macrocytosis mild anemia and delay in the diagnosis of pernicious anemiaCarmel R

Various factors led to delays of several months to several years in the diagnosis of pernicious anemia in 11 patients occasionally with serious consequences These cases illustrate that earlier diagnosis is possible with closer attention to abnormal results of common tests Macrocytosis detected by high mean corpuscular volume often preceded anemia but was not investigated especially when anemia was only slight Several cases demonstrated that vitamin B12 deficiency may initially produce only a mild macrocytic anemia which is maintained for a long period before a rapid worsening supervenes the reason for the latter acceleration of anemia is unknown Most serious was the evidence that mild anemias are often ignored Stricter attention to the established limits of normal hemoglobin values is required These aspects of physician performance have implication for the recognition of all anemias

Publication Types Case Reports

PMID 760683 [PubMed - indexed for MEDLINE]

JOURNAL ARTICLE

Problems in the diagnosis and investigation of megaloblastic anemia

C M Shojania

The diagnosis of megaloblastic anemia and the differentiation of folate and vitamin B12 deficiency require in addition to careful attention to the history and physical findings the use of laboratory tests In this paper the commonly ordered tests for such a diagnosis are discussed with emphasis on the conditions that may cause false-positive or false-negative results in the complete blood count examination of a peripheral blood smear and a bone marrow specimen serum and erythrocyte folate assays serum vitamin B12 assays tests of vitamin B12 absorption and gastric analysis

Canadian Medical Association Journal Vol 122 Issue 9 999-1004 Copyright copy 1980 by Canadian Medical Association

  • Paacutegina 1
  • Paacutegina 2
  • Paacutegina 3
  • Paacutegina 4
  • Paacutegina 5
  • Paacutegina 6
  • Paacutegina 7
  • Paacutegina 8
  • Paacutegina 9
  • Paacutegina 10
  • Paacutegina 11
  • Paacutegina 12
  • Paacutegina 13
  • Paacutegina 14
  • Paacutegina 15
  • Paacutegina 16
  • Paacutegina 17
  • Paacutegina 18
  • Paacutegina 19
  • Paacutegina 20
  • Paacutegina 21
  • Paacutegina 22
  • Paacutegina 23
  • Paacutegina 24
  • Paacutegina 25
  • Paacutegina 26
  • Paacutegina 27
Page 2: MC: Trastorno de la marcha EAneurologiauruguay.org/home/images//deficitb12.pdf · s. cordonal posterior ... sÍndrome del asa ciega: por estancamiento del contenido intestinal y sobrecrecimiento

AEA En mayo 2005 fue internada por cuadro de repercusioacuten general y siacutendrome funcional aneacutemico de varios meses de evolucioacuten A destacar de la paraclinica Hb 7 VCM 93 GB 1200 Nt 280 PLT 35000 Metabolismo Fe N Vit B12 169 Ac Foacutelico N Interpretaacutendose el cuadro hematoloacutegico como pancitopenia de causa multicarencial se realiza Tto con Complejo B Ac Foacutelico Sulfato Ferroso y Calcio (todo por VO) llegando a nuevo Hemograma Hb 97 GB 2800 PLT 262000 por lo que se otorga alta hospitalaria quedando pendiente Mielograma que mostroacute finalmente meacutedula oacutesea rica con reactividad eritroide y megaloblastos marcados polilobocitos alteraciones morfoloacutegicas de la serie eritroide y granular Anisopoiquilocitosis cuerpos de Howell anillos de Cabot La paciente continuoacute hasta la consulta con el mismo Tto indicado al alta

AP Dislipemia en Tto c Atorvastatina No HTA No DM No ETS No Tab ni OH No exp Toacutexicos

AF Nada a destacar MSEC Deficitario

EFN Bradipsiquica apaacutetica FAI sp PC sp Maseterino normal SM sp SE MM SS TONO discreta espasticidad de pronadores

bilateral y simeacutetrica FUERZAS conservadas ROT aumentados con aumento del area y difusioacuten Hoffman y Troumlemers (+) COORDINACIOacuteN normal SENSIBILIDAD Normal

TRONCO sp No nivel sensitivo MM II TONO espasticidad (Ash 1) ext y add

FUERZAS paresia global moderada vence gravedad opone resistencia REFLEJOS rotuliano vivo con aumento del area y difusioacuten aquiliano algo disminuido bilateral y simeacutetrico Babinski bilateral Rossolimo y Mendel - Bechterew en flexioacuten SENSIBILIDAD hipopalestesia global 4 seg eias apalestesia distal Sensibilidad termoalgesica conservada

ESTATICA Signo de Romberg sin latencia MARCHA Ataacutexica Pareto-espaacutesticaEFEN Edema MII hasta raiacutez de muslo

1) iquestCuaacutel es el diagnoacutestico sindromaacutetico y topograacutefico

2) iquestCuaacutel es la causa de esta complicacioacuten neuroloacutegica

3) iquestPlanteariacutea diagnoacutesticos diferenciales en lo etioloacutegico

4) iquestQueacute estudios se deben solicitar5) iquestCuaacutel es el tratamiento correcto de esta

entidad6) iquestQueacute hecho puede plantearse como

desencadenante de la complicacioacuten neuroloacutegica referida

1) iquestCuaacutel es el diagnoacutestico sindromaacutetico y topograacutefico

S CORDONAL POSTERIOR S PIRAMIDAL

S NEUROANEacuteMICO

DCSM

DESMIELINIZACION DEFICIT DE VITAMINA B 12 TRASTORNO DE LA ABSORCIOacuteN GASTRITIS ATROFICA AUTOINMUNE ANTICUERPOS ANTIFACTOR INTRINSECO

DCSA + ANEMIA MEGALOBLASTICA

+ HIPOVITAMINOSIS B12

RESECCIOacuteN GASTRICA O ILEAL SIacuteNDROME DEL ASA CIEGA POR ESTANCAMIENTO DEL CONTENIDO INTESTINAL Y SOBRECRECIMIENTO BACTERIANO QUE

COMPITE CON LA CBL DE LA INGESTA Y PUEDE OCURRIR POR DIVERTICULOSIS YEYUNAL ENTEROANASTOMOSIS TUBERCULOSIS CIRUGIacuteAS PREVIAS ENFERMEDAD DE CROHN FIacuteSTULAS INFILTRACIOacuteN LINFOMATOSA TAMBIEacuteN PUEDE EXISTIR SOBRECRECIMIENTO BACTERIANO SI ESTAacute ALTERADA LA MOTILIDAD INTESTINAL COMO EN LA ESCLERODERMIA O AMILOIDOSIS O EN LA HIPOGAMMAGLOBULINEMIA

S NO DISOCIACIOacuteN B12 OMEPRAZOL COLCHICINA NEOMICINA FENITOINA BIGUANIDAS ETANOL ENFERMEDAD CELIACA

DIPHYLLOBOTRIUM LATUM (CESTODO)

LACTOVEGETARIANOS ESTRICTOS

LACTANTES DE MADRES CON DEF VIT B12 INTOXICACIOacuteN POR OacuteXIDO NITROSO DEFECTO GENEacuteTICO EN LA METILMALONIL COENZIMA A (COA) MUTASA SIacuteNDROME DE ZOLLINGER-ELLISON POR INACTIVACIOacuteN DE LAS ENZIMAS PANCREAacuteTICAS RADIOTERAPIA LOCAL QUE AFECTE AL IacuteLEON O IRRADIACIOacuteN CORPORAL TOTAL INFECCIOacuteN POR VIH SE HAN DETECTADO NIVELES BAJOS DE CBL EN UN 10-35 POR CIENTO Y SE HA DEMOSTRADO

MALABSORCIOacuteN NO CORRE FI ENFERMEDAD INJERTO CONTRA HUEacuteSPED QUE AFECTE AL INTESTINO DELGADO SIacuteNDROME DE IMERSLUND DEFECTO CONGEacuteNITO DE LOS RECEPTORES INTESTINALES DE FI ANOMALIacuteAS EN EL METABOLISMO DE LA VIT B12 DEacuteFICIT CONGEacuteNITO DE TRANSCOBALAMINA II ACIDURIA

CONGEacuteNITA METILMALOacuteNICA Y HOMOCISTINURIA

HEMOGRAMA DOS B12 FGC - BIOPSIAAC ANTIFACTOR INTRINSECO AC ANTICELULAS PARIETALES

NEOPOLIGLANDULAR

COBALAMINA 1000 gammas im diacutea x 1 SEMANA

1 SEMANA X 1 MES 1 MES de por VIDA

LA ldquoTRAMPArdquo DEL ACIDO FOLICO

Copyright copy 2007 by the American Roentgen Ray Society

Ravina B et al Am J Roentgenol 2000174863-865

52-year-old man with

Subacute combined

degeneration of

spinal cord

Rev Meacuted Chile 2004 132 1377-1382Mielopatiacutea por deacuteficit de vitamina B12 caracterizacioacuten cliacutenica de 11 casosJorge Nogales-Gaete

Reversible Myelopathy in a 34-Year-Old Man With Vitamin B12 DeficiencySEAN J PITTOCK MD TROY A PAYNE MD AND C MICHEL HARPER MD

Mayo Clin Proc 200277291-294

Copyright copy2008 Canadian Medical Association or its licensors

Wong C L et al CMAJ 2008178279-281

Magnetic resonance imaging scans of the brain showing changes consistent with cobalamin deficiency

N Engl J Med 1952 Jul 3247(1)15-7 Links

Studies on the mutual effect of suboptimal oral doses of vitamin B12 and folic acid in pernicious anemia

REISNER EH WEINER L

PMID 14941273 [PubMed - indexed for MEDLINE]

J Lab Clin Med 1959 Jan53(1)22-38 Links

Folic acid and vitamin B12 in pernicious anemia studies on patients treated with these substances over a ten year period

WILL JJ MUELLER JF BRODINE C KIELY CE FRIEDMAN B HAWKINS VR DUTRA J VILTER RW

PMID 13621020 [PubMed - indexed for MEDLINE]

Rev Meacuted Chile 2004 132 1377-1382

ldquoNos llama la atencioacuten la asociacioacuten al menos temporal entre el aumento de casos observados y el inicio del programa de suplementacioacuten de la harina con aacutecido foacutelico (22 mgkilo) iniciada en enero de 2000 en Chilerdquohellip ldquoAtendiendo a esta potencial situacioacuten la autoridad sanitaria deberiacutea organizar un estudio formal al respecto o en su defecto canalizar centralmente un registro de notificacioacuten obligatoria de casos de alteraciones neuroloacutegicas centrales atribuibles a deacuteficit de vitamina B12rdquo

Arch Intern Med 1979 Jan139(1)47-50

Macrocytosis mild anemia and delay in the diagnosis of pernicious anemiaCarmel R

Various factors led to delays of several months to several years in the diagnosis of pernicious anemia in 11 patients occasionally with serious consequences These cases illustrate that earlier diagnosis is possible with closer attention to abnormal results of common tests Macrocytosis detected by high mean corpuscular volume often preceded anemia but was not investigated especially when anemia was only slight Several cases demonstrated that vitamin B12 deficiency may initially produce only a mild macrocytic anemia which is maintained for a long period before a rapid worsening supervenes the reason for the latter acceleration of anemia is unknown Most serious was the evidence that mild anemias are often ignored Stricter attention to the established limits of normal hemoglobin values is required These aspects of physician performance have implication for the recognition of all anemias

Publication Types Case Reports

PMID 760683 [PubMed - indexed for MEDLINE]

JOURNAL ARTICLE

Problems in the diagnosis and investigation of megaloblastic anemia

C M Shojania

The diagnosis of megaloblastic anemia and the differentiation of folate and vitamin B12 deficiency require in addition to careful attention to the history and physical findings the use of laboratory tests In this paper the commonly ordered tests for such a diagnosis are discussed with emphasis on the conditions that may cause false-positive or false-negative results in the complete blood count examination of a peripheral blood smear and a bone marrow specimen serum and erythrocyte folate assays serum vitamin B12 assays tests of vitamin B12 absorption and gastric analysis

Canadian Medical Association Journal Vol 122 Issue 9 999-1004 Copyright copy 1980 by Canadian Medical Association

  • Paacutegina 1
  • Paacutegina 2
  • Paacutegina 3
  • Paacutegina 4
  • Paacutegina 5
  • Paacutegina 6
  • Paacutegina 7
  • Paacutegina 8
  • Paacutegina 9
  • Paacutegina 10
  • Paacutegina 11
  • Paacutegina 12
  • Paacutegina 13
  • Paacutegina 14
  • Paacutegina 15
  • Paacutegina 16
  • Paacutegina 17
  • Paacutegina 18
  • Paacutegina 19
  • Paacutegina 20
  • Paacutegina 21
  • Paacutegina 22
  • Paacutegina 23
  • Paacutegina 24
  • Paacutegina 25
  • Paacutegina 26
  • Paacutegina 27
Page 3: MC: Trastorno de la marcha EAneurologiauruguay.org/home/images//deficitb12.pdf · s. cordonal posterior ... sÍndrome del asa ciega: por estancamiento del contenido intestinal y sobrecrecimiento

EFN Bradipsiquica apaacutetica FAI sp PC sp Maseterino normal SM sp SE MM SS TONO discreta espasticidad de pronadores

bilateral y simeacutetrica FUERZAS conservadas ROT aumentados con aumento del area y difusioacuten Hoffman y Troumlemers (+) COORDINACIOacuteN normal SENSIBILIDAD Normal

TRONCO sp No nivel sensitivo MM II TONO espasticidad (Ash 1) ext y add

FUERZAS paresia global moderada vence gravedad opone resistencia REFLEJOS rotuliano vivo con aumento del area y difusioacuten aquiliano algo disminuido bilateral y simeacutetrico Babinski bilateral Rossolimo y Mendel - Bechterew en flexioacuten SENSIBILIDAD hipopalestesia global 4 seg eias apalestesia distal Sensibilidad termoalgesica conservada

ESTATICA Signo de Romberg sin latencia MARCHA Ataacutexica Pareto-espaacutesticaEFEN Edema MII hasta raiacutez de muslo

1) iquestCuaacutel es el diagnoacutestico sindromaacutetico y topograacutefico

2) iquestCuaacutel es la causa de esta complicacioacuten neuroloacutegica

3) iquestPlanteariacutea diagnoacutesticos diferenciales en lo etioloacutegico

4) iquestQueacute estudios se deben solicitar5) iquestCuaacutel es el tratamiento correcto de esta

entidad6) iquestQueacute hecho puede plantearse como

desencadenante de la complicacioacuten neuroloacutegica referida

1) iquestCuaacutel es el diagnoacutestico sindromaacutetico y topograacutefico

S CORDONAL POSTERIOR S PIRAMIDAL

S NEUROANEacuteMICO

DCSM

DESMIELINIZACION DEFICIT DE VITAMINA B 12 TRASTORNO DE LA ABSORCIOacuteN GASTRITIS ATROFICA AUTOINMUNE ANTICUERPOS ANTIFACTOR INTRINSECO

DCSA + ANEMIA MEGALOBLASTICA

+ HIPOVITAMINOSIS B12

RESECCIOacuteN GASTRICA O ILEAL SIacuteNDROME DEL ASA CIEGA POR ESTANCAMIENTO DEL CONTENIDO INTESTINAL Y SOBRECRECIMIENTO BACTERIANO QUE

COMPITE CON LA CBL DE LA INGESTA Y PUEDE OCURRIR POR DIVERTICULOSIS YEYUNAL ENTEROANASTOMOSIS TUBERCULOSIS CIRUGIacuteAS PREVIAS ENFERMEDAD DE CROHN FIacuteSTULAS INFILTRACIOacuteN LINFOMATOSA TAMBIEacuteN PUEDE EXISTIR SOBRECRECIMIENTO BACTERIANO SI ESTAacute ALTERADA LA MOTILIDAD INTESTINAL COMO EN LA ESCLERODERMIA O AMILOIDOSIS O EN LA HIPOGAMMAGLOBULINEMIA

S NO DISOCIACIOacuteN B12 OMEPRAZOL COLCHICINA NEOMICINA FENITOINA BIGUANIDAS ETANOL ENFERMEDAD CELIACA

DIPHYLLOBOTRIUM LATUM (CESTODO)

LACTOVEGETARIANOS ESTRICTOS

LACTANTES DE MADRES CON DEF VIT B12 INTOXICACIOacuteN POR OacuteXIDO NITROSO DEFECTO GENEacuteTICO EN LA METILMALONIL COENZIMA A (COA) MUTASA SIacuteNDROME DE ZOLLINGER-ELLISON POR INACTIVACIOacuteN DE LAS ENZIMAS PANCREAacuteTICAS RADIOTERAPIA LOCAL QUE AFECTE AL IacuteLEON O IRRADIACIOacuteN CORPORAL TOTAL INFECCIOacuteN POR VIH SE HAN DETECTADO NIVELES BAJOS DE CBL EN UN 10-35 POR CIENTO Y SE HA DEMOSTRADO

MALABSORCIOacuteN NO CORRE FI ENFERMEDAD INJERTO CONTRA HUEacuteSPED QUE AFECTE AL INTESTINO DELGADO SIacuteNDROME DE IMERSLUND DEFECTO CONGEacuteNITO DE LOS RECEPTORES INTESTINALES DE FI ANOMALIacuteAS EN EL METABOLISMO DE LA VIT B12 DEacuteFICIT CONGEacuteNITO DE TRANSCOBALAMINA II ACIDURIA

CONGEacuteNITA METILMALOacuteNICA Y HOMOCISTINURIA

HEMOGRAMA DOS B12 FGC - BIOPSIAAC ANTIFACTOR INTRINSECO AC ANTICELULAS PARIETALES

NEOPOLIGLANDULAR

COBALAMINA 1000 gammas im diacutea x 1 SEMANA

1 SEMANA X 1 MES 1 MES de por VIDA

LA ldquoTRAMPArdquo DEL ACIDO FOLICO

Copyright copy 2007 by the American Roentgen Ray Society

Ravina B et al Am J Roentgenol 2000174863-865

52-year-old man with

Subacute combined

degeneration of

spinal cord

Rev Meacuted Chile 2004 132 1377-1382Mielopatiacutea por deacuteficit de vitamina B12 caracterizacioacuten cliacutenica de 11 casosJorge Nogales-Gaete

Reversible Myelopathy in a 34-Year-Old Man With Vitamin B12 DeficiencySEAN J PITTOCK MD TROY A PAYNE MD AND C MICHEL HARPER MD

Mayo Clin Proc 200277291-294

Copyright copy2008 Canadian Medical Association or its licensors

Wong C L et al CMAJ 2008178279-281

Magnetic resonance imaging scans of the brain showing changes consistent with cobalamin deficiency

N Engl J Med 1952 Jul 3247(1)15-7 Links

Studies on the mutual effect of suboptimal oral doses of vitamin B12 and folic acid in pernicious anemia

REISNER EH WEINER L

PMID 14941273 [PubMed - indexed for MEDLINE]

J Lab Clin Med 1959 Jan53(1)22-38 Links

Folic acid and vitamin B12 in pernicious anemia studies on patients treated with these substances over a ten year period

WILL JJ MUELLER JF BRODINE C KIELY CE FRIEDMAN B HAWKINS VR DUTRA J VILTER RW

PMID 13621020 [PubMed - indexed for MEDLINE]

Rev Meacuted Chile 2004 132 1377-1382

ldquoNos llama la atencioacuten la asociacioacuten al menos temporal entre el aumento de casos observados y el inicio del programa de suplementacioacuten de la harina con aacutecido foacutelico (22 mgkilo) iniciada en enero de 2000 en Chilerdquohellip ldquoAtendiendo a esta potencial situacioacuten la autoridad sanitaria deberiacutea organizar un estudio formal al respecto o en su defecto canalizar centralmente un registro de notificacioacuten obligatoria de casos de alteraciones neuroloacutegicas centrales atribuibles a deacuteficit de vitamina B12rdquo

Arch Intern Med 1979 Jan139(1)47-50

Macrocytosis mild anemia and delay in the diagnosis of pernicious anemiaCarmel R

Various factors led to delays of several months to several years in the diagnosis of pernicious anemia in 11 patients occasionally with serious consequences These cases illustrate that earlier diagnosis is possible with closer attention to abnormal results of common tests Macrocytosis detected by high mean corpuscular volume often preceded anemia but was not investigated especially when anemia was only slight Several cases demonstrated that vitamin B12 deficiency may initially produce only a mild macrocytic anemia which is maintained for a long period before a rapid worsening supervenes the reason for the latter acceleration of anemia is unknown Most serious was the evidence that mild anemias are often ignored Stricter attention to the established limits of normal hemoglobin values is required These aspects of physician performance have implication for the recognition of all anemias

Publication Types Case Reports

PMID 760683 [PubMed - indexed for MEDLINE]

JOURNAL ARTICLE

Problems in the diagnosis and investigation of megaloblastic anemia

C M Shojania

The diagnosis of megaloblastic anemia and the differentiation of folate and vitamin B12 deficiency require in addition to careful attention to the history and physical findings the use of laboratory tests In this paper the commonly ordered tests for such a diagnosis are discussed with emphasis on the conditions that may cause false-positive or false-negative results in the complete blood count examination of a peripheral blood smear and a bone marrow specimen serum and erythrocyte folate assays serum vitamin B12 assays tests of vitamin B12 absorption and gastric analysis

Canadian Medical Association Journal Vol 122 Issue 9 999-1004 Copyright copy 1980 by Canadian Medical Association

  • Paacutegina 1
  • Paacutegina 2
  • Paacutegina 3
  • Paacutegina 4
  • Paacutegina 5
  • Paacutegina 6
  • Paacutegina 7
  • Paacutegina 8
  • Paacutegina 9
  • Paacutegina 10
  • Paacutegina 11
  • Paacutegina 12
  • Paacutegina 13
  • Paacutegina 14
  • Paacutegina 15
  • Paacutegina 16
  • Paacutegina 17
  • Paacutegina 18
  • Paacutegina 19
  • Paacutegina 20
  • Paacutegina 21
  • Paacutegina 22
  • Paacutegina 23
  • Paacutegina 24
  • Paacutegina 25
  • Paacutegina 26
  • Paacutegina 27
Page 4: MC: Trastorno de la marcha EAneurologiauruguay.org/home/images//deficitb12.pdf · s. cordonal posterior ... sÍndrome del asa ciega: por estancamiento del contenido intestinal y sobrecrecimiento

1) iquestCuaacutel es el diagnoacutestico sindromaacutetico y topograacutefico

2) iquestCuaacutel es la causa de esta complicacioacuten neuroloacutegica

3) iquestPlanteariacutea diagnoacutesticos diferenciales en lo etioloacutegico

4) iquestQueacute estudios se deben solicitar5) iquestCuaacutel es el tratamiento correcto de esta

entidad6) iquestQueacute hecho puede plantearse como

desencadenante de la complicacioacuten neuroloacutegica referida

1) iquestCuaacutel es el diagnoacutestico sindromaacutetico y topograacutefico

S CORDONAL POSTERIOR S PIRAMIDAL

S NEUROANEacuteMICO

DCSM

DESMIELINIZACION DEFICIT DE VITAMINA B 12 TRASTORNO DE LA ABSORCIOacuteN GASTRITIS ATROFICA AUTOINMUNE ANTICUERPOS ANTIFACTOR INTRINSECO

DCSA + ANEMIA MEGALOBLASTICA

+ HIPOVITAMINOSIS B12

RESECCIOacuteN GASTRICA O ILEAL SIacuteNDROME DEL ASA CIEGA POR ESTANCAMIENTO DEL CONTENIDO INTESTINAL Y SOBRECRECIMIENTO BACTERIANO QUE

COMPITE CON LA CBL DE LA INGESTA Y PUEDE OCURRIR POR DIVERTICULOSIS YEYUNAL ENTEROANASTOMOSIS TUBERCULOSIS CIRUGIacuteAS PREVIAS ENFERMEDAD DE CROHN FIacuteSTULAS INFILTRACIOacuteN LINFOMATOSA TAMBIEacuteN PUEDE EXISTIR SOBRECRECIMIENTO BACTERIANO SI ESTAacute ALTERADA LA MOTILIDAD INTESTINAL COMO EN LA ESCLERODERMIA O AMILOIDOSIS O EN LA HIPOGAMMAGLOBULINEMIA

S NO DISOCIACIOacuteN B12 OMEPRAZOL COLCHICINA NEOMICINA FENITOINA BIGUANIDAS ETANOL ENFERMEDAD CELIACA

DIPHYLLOBOTRIUM LATUM (CESTODO)

LACTOVEGETARIANOS ESTRICTOS

LACTANTES DE MADRES CON DEF VIT B12 INTOXICACIOacuteN POR OacuteXIDO NITROSO DEFECTO GENEacuteTICO EN LA METILMALONIL COENZIMA A (COA) MUTASA SIacuteNDROME DE ZOLLINGER-ELLISON POR INACTIVACIOacuteN DE LAS ENZIMAS PANCREAacuteTICAS RADIOTERAPIA LOCAL QUE AFECTE AL IacuteLEON O IRRADIACIOacuteN CORPORAL TOTAL INFECCIOacuteN POR VIH SE HAN DETECTADO NIVELES BAJOS DE CBL EN UN 10-35 POR CIENTO Y SE HA DEMOSTRADO

MALABSORCIOacuteN NO CORRE FI ENFERMEDAD INJERTO CONTRA HUEacuteSPED QUE AFECTE AL INTESTINO DELGADO SIacuteNDROME DE IMERSLUND DEFECTO CONGEacuteNITO DE LOS RECEPTORES INTESTINALES DE FI ANOMALIacuteAS EN EL METABOLISMO DE LA VIT B12 DEacuteFICIT CONGEacuteNITO DE TRANSCOBALAMINA II ACIDURIA

CONGEacuteNITA METILMALOacuteNICA Y HOMOCISTINURIA

HEMOGRAMA DOS B12 FGC - BIOPSIAAC ANTIFACTOR INTRINSECO AC ANTICELULAS PARIETALES

NEOPOLIGLANDULAR

COBALAMINA 1000 gammas im diacutea x 1 SEMANA

1 SEMANA X 1 MES 1 MES de por VIDA

LA ldquoTRAMPArdquo DEL ACIDO FOLICO

Copyright copy 2007 by the American Roentgen Ray Society

Ravina B et al Am J Roentgenol 2000174863-865

52-year-old man with

Subacute combined

degeneration of

spinal cord

Rev Meacuted Chile 2004 132 1377-1382Mielopatiacutea por deacuteficit de vitamina B12 caracterizacioacuten cliacutenica de 11 casosJorge Nogales-Gaete

Reversible Myelopathy in a 34-Year-Old Man With Vitamin B12 DeficiencySEAN J PITTOCK MD TROY A PAYNE MD AND C MICHEL HARPER MD

Mayo Clin Proc 200277291-294

Copyright copy2008 Canadian Medical Association or its licensors

Wong C L et al CMAJ 2008178279-281

Magnetic resonance imaging scans of the brain showing changes consistent with cobalamin deficiency

N Engl J Med 1952 Jul 3247(1)15-7 Links

Studies on the mutual effect of suboptimal oral doses of vitamin B12 and folic acid in pernicious anemia

REISNER EH WEINER L

PMID 14941273 [PubMed - indexed for MEDLINE]

J Lab Clin Med 1959 Jan53(1)22-38 Links

Folic acid and vitamin B12 in pernicious anemia studies on patients treated with these substances over a ten year period

WILL JJ MUELLER JF BRODINE C KIELY CE FRIEDMAN B HAWKINS VR DUTRA J VILTER RW

PMID 13621020 [PubMed - indexed for MEDLINE]

Rev Meacuted Chile 2004 132 1377-1382

ldquoNos llama la atencioacuten la asociacioacuten al menos temporal entre el aumento de casos observados y el inicio del programa de suplementacioacuten de la harina con aacutecido foacutelico (22 mgkilo) iniciada en enero de 2000 en Chilerdquohellip ldquoAtendiendo a esta potencial situacioacuten la autoridad sanitaria deberiacutea organizar un estudio formal al respecto o en su defecto canalizar centralmente un registro de notificacioacuten obligatoria de casos de alteraciones neuroloacutegicas centrales atribuibles a deacuteficit de vitamina B12rdquo

Arch Intern Med 1979 Jan139(1)47-50

Macrocytosis mild anemia and delay in the diagnosis of pernicious anemiaCarmel R

Various factors led to delays of several months to several years in the diagnosis of pernicious anemia in 11 patients occasionally with serious consequences These cases illustrate that earlier diagnosis is possible with closer attention to abnormal results of common tests Macrocytosis detected by high mean corpuscular volume often preceded anemia but was not investigated especially when anemia was only slight Several cases demonstrated that vitamin B12 deficiency may initially produce only a mild macrocytic anemia which is maintained for a long period before a rapid worsening supervenes the reason for the latter acceleration of anemia is unknown Most serious was the evidence that mild anemias are often ignored Stricter attention to the established limits of normal hemoglobin values is required These aspects of physician performance have implication for the recognition of all anemias

Publication Types Case Reports

PMID 760683 [PubMed - indexed for MEDLINE]

JOURNAL ARTICLE

Problems in the diagnosis and investigation of megaloblastic anemia

C M Shojania

The diagnosis of megaloblastic anemia and the differentiation of folate and vitamin B12 deficiency require in addition to careful attention to the history and physical findings the use of laboratory tests In this paper the commonly ordered tests for such a diagnosis are discussed with emphasis on the conditions that may cause false-positive or false-negative results in the complete blood count examination of a peripheral blood smear and a bone marrow specimen serum and erythrocyte folate assays serum vitamin B12 assays tests of vitamin B12 absorption and gastric analysis

Canadian Medical Association Journal Vol 122 Issue 9 999-1004 Copyright copy 1980 by Canadian Medical Association

  • Paacutegina 1
  • Paacutegina 2
  • Paacutegina 3
  • Paacutegina 4
  • Paacutegina 5
  • Paacutegina 6
  • Paacutegina 7
  • Paacutegina 8
  • Paacutegina 9
  • Paacutegina 10
  • Paacutegina 11
  • Paacutegina 12
  • Paacutegina 13
  • Paacutegina 14
  • Paacutegina 15
  • Paacutegina 16
  • Paacutegina 17
  • Paacutegina 18
  • Paacutegina 19
  • Paacutegina 20
  • Paacutegina 21
  • Paacutegina 22
  • Paacutegina 23
  • Paacutegina 24
  • Paacutegina 25
  • Paacutegina 26
  • Paacutegina 27
Page 5: MC: Trastorno de la marcha EAneurologiauruguay.org/home/images//deficitb12.pdf · s. cordonal posterior ... sÍndrome del asa ciega: por estancamiento del contenido intestinal y sobrecrecimiento

1) iquestCuaacutel es el diagnoacutestico sindromaacutetico y topograacutefico

S CORDONAL POSTERIOR S PIRAMIDAL

S NEUROANEacuteMICO

DCSM

DESMIELINIZACION DEFICIT DE VITAMINA B 12 TRASTORNO DE LA ABSORCIOacuteN GASTRITIS ATROFICA AUTOINMUNE ANTICUERPOS ANTIFACTOR INTRINSECO

DCSA + ANEMIA MEGALOBLASTICA

+ HIPOVITAMINOSIS B12

RESECCIOacuteN GASTRICA O ILEAL SIacuteNDROME DEL ASA CIEGA POR ESTANCAMIENTO DEL CONTENIDO INTESTINAL Y SOBRECRECIMIENTO BACTERIANO QUE

COMPITE CON LA CBL DE LA INGESTA Y PUEDE OCURRIR POR DIVERTICULOSIS YEYUNAL ENTEROANASTOMOSIS TUBERCULOSIS CIRUGIacuteAS PREVIAS ENFERMEDAD DE CROHN FIacuteSTULAS INFILTRACIOacuteN LINFOMATOSA TAMBIEacuteN PUEDE EXISTIR SOBRECRECIMIENTO BACTERIANO SI ESTAacute ALTERADA LA MOTILIDAD INTESTINAL COMO EN LA ESCLERODERMIA O AMILOIDOSIS O EN LA HIPOGAMMAGLOBULINEMIA

S NO DISOCIACIOacuteN B12 OMEPRAZOL COLCHICINA NEOMICINA FENITOINA BIGUANIDAS ETANOL ENFERMEDAD CELIACA

DIPHYLLOBOTRIUM LATUM (CESTODO)

LACTOVEGETARIANOS ESTRICTOS

LACTANTES DE MADRES CON DEF VIT B12 INTOXICACIOacuteN POR OacuteXIDO NITROSO DEFECTO GENEacuteTICO EN LA METILMALONIL COENZIMA A (COA) MUTASA SIacuteNDROME DE ZOLLINGER-ELLISON POR INACTIVACIOacuteN DE LAS ENZIMAS PANCREAacuteTICAS RADIOTERAPIA LOCAL QUE AFECTE AL IacuteLEON O IRRADIACIOacuteN CORPORAL TOTAL INFECCIOacuteN POR VIH SE HAN DETECTADO NIVELES BAJOS DE CBL EN UN 10-35 POR CIENTO Y SE HA DEMOSTRADO

MALABSORCIOacuteN NO CORRE FI ENFERMEDAD INJERTO CONTRA HUEacuteSPED QUE AFECTE AL INTESTINO DELGADO SIacuteNDROME DE IMERSLUND DEFECTO CONGEacuteNITO DE LOS RECEPTORES INTESTINALES DE FI ANOMALIacuteAS EN EL METABOLISMO DE LA VIT B12 DEacuteFICIT CONGEacuteNITO DE TRANSCOBALAMINA II ACIDURIA

CONGEacuteNITA METILMALOacuteNICA Y HOMOCISTINURIA

HEMOGRAMA DOS B12 FGC - BIOPSIAAC ANTIFACTOR INTRINSECO AC ANTICELULAS PARIETALES

NEOPOLIGLANDULAR

COBALAMINA 1000 gammas im diacutea x 1 SEMANA

1 SEMANA X 1 MES 1 MES de por VIDA

LA ldquoTRAMPArdquo DEL ACIDO FOLICO

Copyright copy 2007 by the American Roentgen Ray Society

Ravina B et al Am J Roentgenol 2000174863-865

52-year-old man with

Subacute combined

degeneration of

spinal cord

Rev Meacuted Chile 2004 132 1377-1382Mielopatiacutea por deacuteficit de vitamina B12 caracterizacioacuten cliacutenica de 11 casosJorge Nogales-Gaete

Reversible Myelopathy in a 34-Year-Old Man With Vitamin B12 DeficiencySEAN J PITTOCK MD TROY A PAYNE MD AND C MICHEL HARPER MD

Mayo Clin Proc 200277291-294

Copyright copy2008 Canadian Medical Association or its licensors

Wong C L et al CMAJ 2008178279-281

Magnetic resonance imaging scans of the brain showing changes consistent with cobalamin deficiency

N Engl J Med 1952 Jul 3247(1)15-7 Links

Studies on the mutual effect of suboptimal oral doses of vitamin B12 and folic acid in pernicious anemia

REISNER EH WEINER L

PMID 14941273 [PubMed - indexed for MEDLINE]

J Lab Clin Med 1959 Jan53(1)22-38 Links

Folic acid and vitamin B12 in pernicious anemia studies on patients treated with these substances over a ten year period

WILL JJ MUELLER JF BRODINE C KIELY CE FRIEDMAN B HAWKINS VR DUTRA J VILTER RW

PMID 13621020 [PubMed - indexed for MEDLINE]

Rev Meacuted Chile 2004 132 1377-1382

ldquoNos llama la atencioacuten la asociacioacuten al menos temporal entre el aumento de casos observados y el inicio del programa de suplementacioacuten de la harina con aacutecido foacutelico (22 mgkilo) iniciada en enero de 2000 en Chilerdquohellip ldquoAtendiendo a esta potencial situacioacuten la autoridad sanitaria deberiacutea organizar un estudio formal al respecto o en su defecto canalizar centralmente un registro de notificacioacuten obligatoria de casos de alteraciones neuroloacutegicas centrales atribuibles a deacuteficit de vitamina B12rdquo

Arch Intern Med 1979 Jan139(1)47-50

Macrocytosis mild anemia and delay in the diagnosis of pernicious anemiaCarmel R

Various factors led to delays of several months to several years in the diagnosis of pernicious anemia in 11 patients occasionally with serious consequences These cases illustrate that earlier diagnosis is possible with closer attention to abnormal results of common tests Macrocytosis detected by high mean corpuscular volume often preceded anemia but was not investigated especially when anemia was only slight Several cases demonstrated that vitamin B12 deficiency may initially produce only a mild macrocytic anemia which is maintained for a long period before a rapid worsening supervenes the reason for the latter acceleration of anemia is unknown Most serious was the evidence that mild anemias are often ignored Stricter attention to the established limits of normal hemoglobin values is required These aspects of physician performance have implication for the recognition of all anemias

Publication Types Case Reports

PMID 760683 [PubMed - indexed for MEDLINE]

JOURNAL ARTICLE

Problems in the diagnosis and investigation of megaloblastic anemia

C M Shojania

The diagnosis of megaloblastic anemia and the differentiation of folate and vitamin B12 deficiency require in addition to careful attention to the history and physical findings the use of laboratory tests In this paper the commonly ordered tests for such a diagnosis are discussed with emphasis on the conditions that may cause false-positive or false-negative results in the complete blood count examination of a peripheral blood smear and a bone marrow specimen serum and erythrocyte folate assays serum vitamin B12 assays tests of vitamin B12 absorption and gastric analysis

Canadian Medical Association Journal Vol 122 Issue 9 999-1004 Copyright copy 1980 by Canadian Medical Association

  • Paacutegina 1
  • Paacutegina 2
  • Paacutegina 3
  • Paacutegina 4
  • Paacutegina 5
  • Paacutegina 6
  • Paacutegina 7
  • Paacutegina 8
  • Paacutegina 9
  • Paacutegina 10
  • Paacutegina 11
  • Paacutegina 12
  • Paacutegina 13
  • Paacutegina 14
  • Paacutegina 15
  • Paacutegina 16
  • Paacutegina 17
  • Paacutegina 18
  • Paacutegina 19
  • Paacutegina 20
  • Paacutegina 21
  • Paacutegina 22
  • Paacutegina 23
  • Paacutegina 24
  • Paacutegina 25
  • Paacutegina 26
  • Paacutegina 27
Page 6: MC: Trastorno de la marcha EAneurologiauruguay.org/home/images//deficitb12.pdf · s. cordonal posterior ... sÍndrome del asa ciega: por estancamiento del contenido intestinal y sobrecrecimiento

DESMIELINIZACION DEFICIT DE VITAMINA B 12 TRASTORNO DE LA ABSORCIOacuteN GASTRITIS ATROFICA AUTOINMUNE ANTICUERPOS ANTIFACTOR INTRINSECO

DCSA + ANEMIA MEGALOBLASTICA

+ HIPOVITAMINOSIS B12

RESECCIOacuteN GASTRICA O ILEAL SIacuteNDROME DEL ASA CIEGA POR ESTANCAMIENTO DEL CONTENIDO INTESTINAL Y SOBRECRECIMIENTO BACTERIANO QUE

COMPITE CON LA CBL DE LA INGESTA Y PUEDE OCURRIR POR DIVERTICULOSIS YEYUNAL ENTEROANASTOMOSIS TUBERCULOSIS CIRUGIacuteAS PREVIAS ENFERMEDAD DE CROHN FIacuteSTULAS INFILTRACIOacuteN LINFOMATOSA TAMBIEacuteN PUEDE EXISTIR SOBRECRECIMIENTO BACTERIANO SI ESTAacute ALTERADA LA MOTILIDAD INTESTINAL COMO EN LA ESCLERODERMIA O AMILOIDOSIS O EN LA HIPOGAMMAGLOBULINEMIA

S NO DISOCIACIOacuteN B12 OMEPRAZOL COLCHICINA NEOMICINA FENITOINA BIGUANIDAS ETANOL ENFERMEDAD CELIACA

DIPHYLLOBOTRIUM LATUM (CESTODO)

LACTOVEGETARIANOS ESTRICTOS

LACTANTES DE MADRES CON DEF VIT B12 INTOXICACIOacuteN POR OacuteXIDO NITROSO DEFECTO GENEacuteTICO EN LA METILMALONIL COENZIMA A (COA) MUTASA SIacuteNDROME DE ZOLLINGER-ELLISON POR INACTIVACIOacuteN DE LAS ENZIMAS PANCREAacuteTICAS RADIOTERAPIA LOCAL QUE AFECTE AL IacuteLEON O IRRADIACIOacuteN CORPORAL TOTAL INFECCIOacuteN POR VIH SE HAN DETECTADO NIVELES BAJOS DE CBL EN UN 10-35 POR CIENTO Y SE HA DEMOSTRADO

MALABSORCIOacuteN NO CORRE FI ENFERMEDAD INJERTO CONTRA HUEacuteSPED QUE AFECTE AL INTESTINO DELGADO SIacuteNDROME DE IMERSLUND DEFECTO CONGEacuteNITO DE LOS RECEPTORES INTESTINALES DE FI ANOMALIacuteAS EN EL METABOLISMO DE LA VIT B12 DEacuteFICIT CONGEacuteNITO DE TRANSCOBALAMINA II ACIDURIA

CONGEacuteNITA METILMALOacuteNICA Y HOMOCISTINURIA

HEMOGRAMA DOS B12 FGC - BIOPSIAAC ANTIFACTOR INTRINSECO AC ANTICELULAS PARIETALES

NEOPOLIGLANDULAR

COBALAMINA 1000 gammas im diacutea x 1 SEMANA

1 SEMANA X 1 MES 1 MES de por VIDA

LA ldquoTRAMPArdquo DEL ACIDO FOLICO

Copyright copy 2007 by the American Roentgen Ray Society

Ravina B et al Am J Roentgenol 2000174863-865

52-year-old man with

Subacute combined

degeneration of

spinal cord

Rev Meacuted Chile 2004 132 1377-1382Mielopatiacutea por deacuteficit de vitamina B12 caracterizacioacuten cliacutenica de 11 casosJorge Nogales-Gaete

Reversible Myelopathy in a 34-Year-Old Man With Vitamin B12 DeficiencySEAN J PITTOCK MD TROY A PAYNE MD AND C MICHEL HARPER MD

Mayo Clin Proc 200277291-294

Copyright copy2008 Canadian Medical Association or its licensors

Wong C L et al CMAJ 2008178279-281

Magnetic resonance imaging scans of the brain showing changes consistent with cobalamin deficiency

N Engl J Med 1952 Jul 3247(1)15-7 Links

Studies on the mutual effect of suboptimal oral doses of vitamin B12 and folic acid in pernicious anemia

REISNER EH WEINER L

PMID 14941273 [PubMed - indexed for MEDLINE]

J Lab Clin Med 1959 Jan53(1)22-38 Links

Folic acid and vitamin B12 in pernicious anemia studies on patients treated with these substances over a ten year period

WILL JJ MUELLER JF BRODINE C KIELY CE FRIEDMAN B HAWKINS VR DUTRA J VILTER RW

PMID 13621020 [PubMed - indexed for MEDLINE]

Rev Meacuted Chile 2004 132 1377-1382

ldquoNos llama la atencioacuten la asociacioacuten al menos temporal entre el aumento de casos observados y el inicio del programa de suplementacioacuten de la harina con aacutecido foacutelico (22 mgkilo) iniciada en enero de 2000 en Chilerdquohellip ldquoAtendiendo a esta potencial situacioacuten la autoridad sanitaria deberiacutea organizar un estudio formal al respecto o en su defecto canalizar centralmente un registro de notificacioacuten obligatoria de casos de alteraciones neuroloacutegicas centrales atribuibles a deacuteficit de vitamina B12rdquo

Arch Intern Med 1979 Jan139(1)47-50

Macrocytosis mild anemia and delay in the diagnosis of pernicious anemiaCarmel R

Various factors led to delays of several months to several years in the diagnosis of pernicious anemia in 11 patients occasionally with serious consequences These cases illustrate that earlier diagnosis is possible with closer attention to abnormal results of common tests Macrocytosis detected by high mean corpuscular volume often preceded anemia but was not investigated especially when anemia was only slight Several cases demonstrated that vitamin B12 deficiency may initially produce only a mild macrocytic anemia which is maintained for a long period before a rapid worsening supervenes the reason for the latter acceleration of anemia is unknown Most serious was the evidence that mild anemias are often ignored Stricter attention to the established limits of normal hemoglobin values is required These aspects of physician performance have implication for the recognition of all anemias

Publication Types Case Reports

PMID 760683 [PubMed - indexed for MEDLINE]

JOURNAL ARTICLE

Problems in the diagnosis and investigation of megaloblastic anemia

C M Shojania

The diagnosis of megaloblastic anemia and the differentiation of folate and vitamin B12 deficiency require in addition to careful attention to the history and physical findings the use of laboratory tests In this paper the commonly ordered tests for such a diagnosis are discussed with emphasis on the conditions that may cause false-positive or false-negative results in the complete blood count examination of a peripheral blood smear and a bone marrow specimen serum and erythrocyte folate assays serum vitamin B12 assays tests of vitamin B12 absorption and gastric analysis

Canadian Medical Association Journal Vol 122 Issue 9 999-1004 Copyright copy 1980 by Canadian Medical Association

  • Paacutegina 1
  • Paacutegina 2
  • Paacutegina 3
  • Paacutegina 4
  • Paacutegina 5
  • Paacutegina 6
  • Paacutegina 7
  • Paacutegina 8
  • Paacutegina 9
  • Paacutegina 10
  • Paacutegina 11
  • Paacutegina 12
  • Paacutegina 13
  • Paacutegina 14
  • Paacutegina 15
  • Paacutegina 16
  • Paacutegina 17
  • Paacutegina 18
  • Paacutegina 19
  • Paacutegina 20
  • Paacutegina 21
  • Paacutegina 22
  • Paacutegina 23
  • Paacutegina 24
  • Paacutegina 25
  • Paacutegina 26
  • Paacutegina 27
Page 7: MC: Trastorno de la marcha EAneurologiauruguay.org/home/images//deficitb12.pdf · s. cordonal posterior ... sÍndrome del asa ciega: por estancamiento del contenido intestinal y sobrecrecimiento

DCSA + ANEMIA MEGALOBLASTICA

+ HIPOVITAMINOSIS B12

RESECCIOacuteN GASTRICA O ILEAL SIacuteNDROME DEL ASA CIEGA POR ESTANCAMIENTO DEL CONTENIDO INTESTINAL Y SOBRECRECIMIENTO BACTERIANO QUE

COMPITE CON LA CBL DE LA INGESTA Y PUEDE OCURRIR POR DIVERTICULOSIS YEYUNAL ENTEROANASTOMOSIS TUBERCULOSIS CIRUGIacuteAS PREVIAS ENFERMEDAD DE CROHN FIacuteSTULAS INFILTRACIOacuteN LINFOMATOSA TAMBIEacuteN PUEDE EXISTIR SOBRECRECIMIENTO BACTERIANO SI ESTAacute ALTERADA LA MOTILIDAD INTESTINAL COMO EN LA ESCLERODERMIA O AMILOIDOSIS O EN LA HIPOGAMMAGLOBULINEMIA

S NO DISOCIACIOacuteN B12 OMEPRAZOL COLCHICINA NEOMICINA FENITOINA BIGUANIDAS ETANOL ENFERMEDAD CELIACA

DIPHYLLOBOTRIUM LATUM (CESTODO)

LACTOVEGETARIANOS ESTRICTOS

LACTANTES DE MADRES CON DEF VIT B12 INTOXICACIOacuteN POR OacuteXIDO NITROSO DEFECTO GENEacuteTICO EN LA METILMALONIL COENZIMA A (COA) MUTASA SIacuteNDROME DE ZOLLINGER-ELLISON POR INACTIVACIOacuteN DE LAS ENZIMAS PANCREAacuteTICAS RADIOTERAPIA LOCAL QUE AFECTE AL IacuteLEON O IRRADIACIOacuteN CORPORAL TOTAL INFECCIOacuteN POR VIH SE HAN DETECTADO NIVELES BAJOS DE CBL EN UN 10-35 POR CIENTO Y SE HA DEMOSTRADO

MALABSORCIOacuteN NO CORRE FI ENFERMEDAD INJERTO CONTRA HUEacuteSPED QUE AFECTE AL INTESTINO DELGADO SIacuteNDROME DE IMERSLUND DEFECTO CONGEacuteNITO DE LOS RECEPTORES INTESTINALES DE FI ANOMALIacuteAS EN EL METABOLISMO DE LA VIT B12 DEacuteFICIT CONGEacuteNITO DE TRANSCOBALAMINA II ACIDURIA

CONGEacuteNITA METILMALOacuteNICA Y HOMOCISTINURIA

HEMOGRAMA DOS B12 FGC - BIOPSIAAC ANTIFACTOR INTRINSECO AC ANTICELULAS PARIETALES

NEOPOLIGLANDULAR

COBALAMINA 1000 gammas im diacutea x 1 SEMANA

1 SEMANA X 1 MES 1 MES de por VIDA

LA ldquoTRAMPArdquo DEL ACIDO FOLICO

Copyright copy 2007 by the American Roentgen Ray Society

Ravina B et al Am J Roentgenol 2000174863-865

52-year-old man with

Subacute combined

degeneration of

spinal cord

Rev Meacuted Chile 2004 132 1377-1382Mielopatiacutea por deacuteficit de vitamina B12 caracterizacioacuten cliacutenica de 11 casosJorge Nogales-Gaete

Reversible Myelopathy in a 34-Year-Old Man With Vitamin B12 DeficiencySEAN J PITTOCK MD TROY A PAYNE MD AND C MICHEL HARPER MD

Mayo Clin Proc 200277291-294

Copyright copy2008 Canadian Medical Association or its licensors

Wong C L et al CMAJ 2008178279-281

Magnetic resonance imaging scans of the brain showing changes consistent with cobalamin deficiency

N Engl J Med 1952 Jul 3247(1)15-7 Links

Studies on the mutual effect of suboptimal oral doses of vitamin B12 and folic acid in pernicious anemia

REISNER EH WEINER L

PMID 14941273 [PubMed - indexed for MEDLINE]

J Lab Clin Med 1959 Jan53(1)22-38 Links

Folic acid and vitamin B12 in pernicious anemia studies on patients treated with these substances over a ten year period

WILL JJ MUELLER JF BRODINE C KIELY CE FRIEDMAN B HAWKINS VR DUTRA J VILTER RW

PMID 13621020 [PubMed - indexed for MEDLINE]

Rev Meacuted Chile 2004 132 1377-1382

ldquoNos llama la atencioacuten la asociacioacuten al menos temporal entre el aumento de casos observados y el inicio del programa de suplementacioacuten de la harina con aacutecido foacutelico (22 mgkilo) iniciada en enero de 2000 en Chilerdquohellip ldquoAtendiendo a esta potencial situacioacuten la autoridad sanitaria deberiacutea organizar un estudio formal al respecto o en su defecto canalizar centralmente un registro de notificacioacuten obligatoria de casos de alteraciones neuroloacutegicas centrales atribuibles a deacuteficit de vitamina B12rdquo

Arch Intern Med 1979 Jan139(1)47-50

Macrocytosis mild anemia and delay in the diagnosis of pernicious anemiaCarmel R

Various factors led to delays of several months to several years in the diagnosis of pernicious anemia in 11 patients occasionally with serious consequences These cases illustrate that earlier diagnosis is possible with closer attention to abnormal results of common tests Macrocytosis detected by high mean corpuscular volume often preceded anemia but was not investigated especially when anemia was only slight Several cases demonstrated that vitamin B12 deficiency may initially produce only a mild macrocytic anemia which is maintained for a long period before a rapid worsening supervenes the reason for the latter acceleration of anemia is unknown Most serious was the evidence that mild anemias are often ignored Stricter attention to the established limits of normal hemoglobin values is required These aspects of physician performance have implication for the recognition of all anemias

Publication Types Case Reports

PMID 760683 [PubMed - indexed for MEDLINE]

JOURNAL ARTICLE

Problems in the diagnosis and investigation of megaloblastic anemia

C M Shojania

The diagnosis of megaloblastic anemia and the differentiation of folate and vitamin B12 deficiency require in addition to careful attention to the history and physical findings the use of laboratory tests In this paper the commonly ordered tests for such a diagnosis are discussed with emphasis on the conditions that may cause false-positive or false-negative results in the complete blood count examination of a peripheral blood smear and a bone marrow specimen serum and erythrocyte folate assays serum vitamin B12 assays tests of vitamin B12 absorption and gastric analysis

Canadian Medical Association Journal Vol 122 Issue 9 999-1004 Copyright copy 1980 by Canadian Medical Association

  • Paacutegina 1
  • Paacutegina 2
  • Paacutegina 3
  • Paacutegina 4
  • Paacutegina 5
  • Paacutegina 6
  • Paacutegina 7
  • Paacutegina 8
  • Paacutegina 9
  • Paacutegina 10
  • Paacutegina 11
  • Paacutegina 12
  • Paacutegina 13
  • Paacutegina 14
  • Paacutegina 15
  • Paacutegina 16
  • Paacutegina 17
  • Paacutegina 18
  • Paacutegina 19
  • Paacutegina 20
  • Paacutegina 21
  • Paacutegina 22
  • Paacutegina 23
  • Paacutegina 24
  • Paacutegina 25
  • Paacutegina 26
  • Paacutegina 27
Page 8: MC: Trastorno de la marcha EAneurologiauruguay.org/home/images//deficitb12.pdf · s. cordonal posterior ... sÍndrome del asa ciega: por estancamiento del contenido intestinal y sobrecrecimiento

RESECCIOacuteN GASTRICA O ILEAL SIacuteNDROME DEL ASA CIEGA POR ESTANCAMIENTO DEL CONTENIDO INTESTINAL Y SOBRECRECIMIENTO BACTERIANO QUE

COMPITE CON LA CBL DE LA INGESTA Y PUEDE OCURRIR POR DIVERTICULOSIS YEYUNAL ENTEROANASTOMOSIS TUBERCULOSIS CIRUGIacuteAS PREVIAS ENFERMEDAD DE CROHN FIacuteSTULAS INFILTRACIOacuteN LINFOMATOSA TAMBIEacuteN PUEDE EXISTIR SOBRECRECIMIENTO BACTERIANO SI ESTAacute ALTERADA LA MOTILIDAD INTESTINAL COMO EN LA ESCLERODERMIA O AMILOIDOSIS O EN LA HIPOGAMMAGLOBULINEMIA

S NO DISOCIACIOacuteN B12 OMEPRAZOL COLCHICINA NEOMICINA FENITOINA BIGUANIDAS ETANOL ENFERMEDAD CELIACA

DIPHYLLOBOTRIUM LATUM (CESTODO)

LACTOVEGETARIANOS ESTRICTOS

LACTANTES DE MADRES CON DEF VIT B12 INTOXICACIOacuteN POR OacuteXIDO NITROSO DEFECTO GENEacuteTICO EN LA METILMALONIL COENZIMA A (COA) MUTASA SIacuteNDROME DE ZOLLINGER-ELLISON POR INACTIVACIOacuteN DE LAS ENZIMAS PANCREAacuteTICAS RADIOTERAPIA LOCAL QUE AFECTE AL IacuteLEON O IRRADIACIOacuteN CORPORAL TOTAL INFECCIOacuteN POR VIH SE HAN DETECTADO NIVELES BAJOS DE CBL EN UN 10-35 POR CIENTO Y SE HA DEMOSTRADO

MALABSORCIOacuteN NO CORRE FI ENFERMEDAD INJERTO CONTRA HUEacuteSPED QUE AFECTE AL INTESTINO DELGADO SIacuteNDROME DE IMERSLUND DEFECTO CONGEacuteNITO DE LOS RECEPTORES INTESTINALES DE FI ANOMALIacuteAS EN EL METABOLISMO DE LA VIT B12 DEacuteFICIT CONGEacuteNITO DE TRANSCOBALAMINA II ACIDURIA

CONGEacuteNITA METILMALOacuteNICA Y HOMOCISTINURIA

HEMOGRAMA DOS B12 FGC - BIOPSIAAC ANTIFACTOR INTRINSECO AC ANTICELULAS PARIETALES

NEOPOLIGLANDULAR

COBALAMINA 1000 gammas im diacutea x 1 SEMANA

1 SEMANA X 1 MES 1 MES de por VIDA

LA ldquoTRAMPArdquo DEL ACIDO FOLICO

Copyright copy 2007 by the American Roentgen Ray Society

Ravina B et al Am J Roentgenol 2000174863-865

52-year-old man with

Subacute combined

degeneration of

spinal cord

Rev Meacuted Chile 2004 132 1377-1382Mielopatiacutea por deacuteficit de vitamina B12 caracterizacioacuten cliacutenica de 11 casosJorge Nogales-Gaete

Reversible Myelopathy in a 34-Year-Old Man With Vitamin B12 DeficiencySEAN J PITTOCK MD TROY A PAYNE MD AND C MICHEL HARPER MD

Mayo Clin Proc 200277291-294

Copyright copy2008 Canadian Medical Association or its licensors

Wong C L et al CMAJ 2008178279-281

Magnetic resonance imaging scans of the brain showing changes consistent with cobalamin deficiency

N Engl J Med 1952 Jul 3247(1)15-7 Links

Studies on the mutual effect of suboptimal oral doses of vitamin B12 and folic acid in pernicious anemia

REISNER EH WEINER L

PMID 14941273 [PubMed - indexed for MEDLINE]

J Lab Clin Med 1959 Jan53(1)22-38 Links

Folic acid and vitamin B12 in pernicious anemia studies on patients treated with these substances over a ten year period

WILL JJ MUELLER JF BRODINE C KIELY CE FRIEDMAN B HAWKINS VR DUTRA J VILTER RW

PMID 13621020 [PubMed - indexed for MEDLINE]

Rev Meacuted Chile 2004 132 1377-1382

ldquoNos llama la atencioacuten la asociacioacuten al menos temporal entre el aumento de casos observados y el inicio del programa de suplementacioacuten de la harina con aacutecido foacutelico (22 mgkilo) iniciada en enero de 2000 en Chilerdquohellip ldquoAtendiendo a esta potencial situacioacuten la autoridad sanitaria deberiacutea organizar un estudio formal al respecto o en su defecto canalizar centralmente un registro de notificacioacuten obligatoria de casos de alteraciones neuroloacutegicas centrales atribuibles a deacuteficit de vitamina B12rdquo

Arch Intern Med 1979 Jan139(1)47-50

Macrocytosis mild anemia and delay in the diagnosis of pernicious anemiaCarmel R

Various factors led to delays of several months to several years in the diagnosis of pernicious anemia in 11 patients occasionally with serious consequences These cases illustrate that earlier diagnosis is possible with closer attention to abnormal results of common tests Macrocytosis detected by high mean corpuscular volume often preceded anemia but was not investigated especially when anemia was only slight Several cases demonstrated that vitamin B12 deficiency may initially produce only a mild macrocytic anemia which is maintained for a long period before a rapid worsening supervenes the reason for the latter acceleration of anemia is unknown Most serious was the evidence that mild anemias are often ignored Stricter attention to the established limits of normal hemoglobin values is required These aspects of physician performance have implication for the recognition of all anemias

Publication Types Case Reports

PMID 760683 [PubMed - indexed for MEDLINE]

JOURNAL ARTICLE

Problems in the diagnosis and investigation of megaloblastic anemia

C M Shojania

The diagnosis of megaloblastic anemia and the differentiation of folate and vitamin B12 deficiency require in addition to careful attention to the history and physical findings the use of laboratory tests In this paper the commonly ordered tests for such a diagnosis are discussed with emphasis on the conditions that may cause false-positive or false-negative results in the complete blood count examination of a peripheral blood smear and a bone marrow specimen serum and erythrocyte folate assays serum vitamin B12 assays tests of vitamin B12 absorption and gastric analysis

Canadian Medical Association Journal Vol 122 Issue 9 999-1004 Copyright copy 1980 by Canadian Medical Association

  • Paacutegina 1
  • Paacutegina 2
  • Paacutegina 3
  • Paacutegina 4
  • Paacutegina 5
  • Paacutegina 6
  • Paacutegina 7
  • Paacutegina 8
  • Paacutegina 9
  • Paacutegina 10
  • Paacutegina 11
  • Paacutegina 12
  • Paacutegina 13
  • Paacutegina 14
  • Paacutegina 15
  • Paacutegina 16
  • Paacutegina 17
  • Paacutegina 18
  • Paacutegina 19
  • Paacutegina 20
  • Paacutegina 21
  • Paacutegina 22
  • Paacutegina 23
  • Paacutegina 24
  • Paacutegina 25
  • Paacutegina 26
  • Paacutegina 27
Page 9: MC: Trastorno de la marcha EAneurologiauruguay.org/home/images//deficitb12.pdf · s. cordonal posterior ... sÍndrome del asa ciega: por estancamiento del contenido intestinal y sobrecrecimiento

HEMOGRAMA DOS B12 FGC - BIOPSIAAC ANTIFACTOR INTRINSECO AC ANTICELULAS PARIETALES

NEOPOLIGLANDULAR

COBALAMINA 1000 gammas im diacutea x 1 SEMANA

1 SEMANA X 1 MES 1 MES de por VIDA

LA ldquoTRAMPArdquo DEL ACIDO FOLICO

Copyright copy 2007 by the American Roentgen Ray Society

Ravina B et al Am J Roentgenol 2000174863-865

52-year-old man with

Subacute combined

degeneration of

spinal cord

Rev Meacuted Chile 2004 132 1377-1382Mielopatiacutea por deacuteficit de vitamina B12 caracterizacioacuten cliacutenica de 11 casosJorge Nogales-Gaete

Reversible Myelopathy in a 34-Year-Old Man With Vitamin B12 DeficiencySEAN J PITTOCK MD TROY A PAYNE MD AND C MICHEL HARPER MD

Mayo Clin Proc 200277291-294

Copyright copy2008 Canadian Medical Association or its licensors

Wong C L et al CMAJ 2008178279-281

Magnetic resonance imaging scans of the brain showing changes consistent with cobalamin deficiency

N Engl J Med 1952 Jul 3247(1)15-7 Links

Studies on the mutual effect of suboptimal oral doses of vitamin B12 and folic acid in pernicious anemia

REISNER EH WEINER L

PMID 14941273 [PubMed - indexed for MEDLINE]

J Lab Clin Med 1959 Jan53(1)22-38 Links

Folic acid and vitamin B12 in pernicious anemia studies on patients treated with these substances over a ten year period

WILL JJ MUELLER JF BRODINE C KIELY CE FRIEDMAN B HAWKINS VR DUTRA J VILTER RW

PMID 13621020 [PubMed - indexed for MEDLINE]

Rev Meacuted Chile 2004 132 1377-1382

ldquoNos llama la atencioacuten la asociacioacuten al menos temporal entre el aumento de casos observados y el inicio del programa de suplementacioacuten de la harina con aacutecido foacutelico (22 mgkilo) iniciada en enero de 2000 en Chilerdquohellip ldquoAtendiendo a esta potencial situacioacuten la autoridad sanitaria deberiacutea organizar un estudio formal al respecto o en su defecto canalizar centralmente un registro de notificacioacuten obligatoria de casos de alteraciones neuroloacutegicas centrales atribuibles a deacuteficit de vitamina B12rdquo

Arch Intern Med 1979 Jan139(1)47-50

Macrocytosis mild anemia and delay in the diagnosis of pernicious anemiaCarmel R

Various factors led to delays of several months to several years in the diagnosis of pernicious anemia in 11 patients occasionally with serious consequences These cases illustrate that earlier diagnosis is possible with closer attention to abnormal results of common tests Macrocytosis detected by high mean corpuscular volume often preceded anemia but was not investigated especially when anemia was only slight Several cases demonstrated that vitamin B12 deficiency may initially produce only a mild macrocytic anemia which is maintained for a long period before a rapid worsening supervenes the reason for the latter acceleration of anemia is unknown Most serious was the evidence that mild anemias are often ignored Stricter attention to the established limits of normal hemoglobin values is required These aspects of physician performance have implication for the recognition of all anemias

Publication Types Case Reports

PMID 760683 [PubMed - indexed for MEDLINE]

JOURNAL ARTICLE

Problems in the diagnosis and investigation of megaloblastic anemia

C M Shojania

The diagnosis of megaloblastic anemia and the differentiation of folate and vitamin B12 deficiency require in addition to careful attention to the history and physical findings the use of laboratory tests In this paper the commonly ordered tests for such a diagnosis are discussed with emphasis on the conditions that may cause false-positive or false-negative results in the complete blood count examination of a peripheral blood smear and a bone marrow specimen serum and erythrocyte folate assays serum vitamin B12 assays tests of vitamin B12 absorption and gastric analysis

Canadian Medical Association Journal Vol 122 Issue 9 999-1004 Copyright copy 1980 by Canadian Medical Association

  • Paacutegina 1
  • Paacutegina 2
  • Paacutegina 3
  • Paacutegina 4
  • Paacutegina 5
  • Paacutegina 6
  • Paacutegina 7
  • Paacutegina 8
  • Paacutegina 9
  • Paacutegina 10
  • Paacutegina 11
  • Paacutegina 12
  • Paacutegina 13
  • Paacutegina 14
  • Paacutegina 15
  • Paacutegina 16
  • Paacutegina 17
  • Paacutegina 18
  • Paacutegina 19
  • Paacutegina 20
  • Paacutegina 21
  • Paacutegina 22
  • Paacutegina 23
  • Paacutegina 24
  • Paacutegina 25
  • Paacutegina 26
  • Paacutegina 27
Page 10: MC: Trastorno de la marcha EAneurologiauruguay.org/home/images//deficitb12.pdf · s. cordonal posterior ... sÍndrome del asa ciega: por estancamiento del contenido intestinal y sobrecrecimiento

COBALAMINA 1000 gammas im diacutea x 1 SEMANA

1 SEMANA X 1 MES 1 MES de por VIDA

LA ldquoTRAMPArdquo DEL ACIDO FOLICO

Copyright copy 2007 by the American Roentgen Ray Society

Ravina B et al Am J Roentgenol 2000174863-865

52-year-old man with

Subacute combined

degeneration of

spinal cord

Rev Meacuted Chile 2004 132 1377-1382Mielopatiacutea por deacuteficit de vitamina B12 caracterizacioacuten cliacutenica de 11 casosJorge Nogales-Gaete

Reversible Myelopathy in a 34-Year-Old Man With Vitamin B12 DeficiencySEAN J PITTOCK MD TROY A PAYNE MD AND C MICHEL HARPER MD

Mayo Clin Proc 200277291-294

Copyright copy2008 Canadian Medical Association or its licensors

Wong C L et al CMAJ 2008178279-281

Magnetic resonance imaging scans of the brain showing changes consistent with cobalamin deficiency

N Engl J Med 1952 Jul 3247(1)15-7 Links

Studies on the mutual effect of suboptimal oral doses of vitamin B12 and folic acid in pernicious anemia

REISNER EH WEINER L

PMID 14941273 [PubMed - indexed for MEDLINE]

J Lab Clin Med 1959 Jan53(1)22-38 Links

Folic acid and vitamin B12 in pernicious anemia studies on patients treated with these substances over a ten year period

WILL JJ MUELLER JF BRODINE C KIELY CE FRIEDMAN B HAWKINS VR DUTRA J VILTER RW

PMID 13621020 [PubMed - indexed for MEDLINE]

Rev Meacuted Chile 2004 132 1377-1382

ldquoNos llama la atencioacuten la asociacioacuten al menos temporal entre el aumento de casos observados y el inicio del programa de suplementacioacuten de la harina con aacutecido foacutelico (22 mgkilo) iniciada en enero de 2000 en Chilerdquohellip ldquoAtendiendo a esta potencial situacioacuten la autoridad sanitaria deberiacutea organizar un estudio formal al respecto o en su defecto canalizar centralmente un registro de notificacioacuten obligatoria de casos de alteraciones neuroloacutegicas centrales atribuibles a deacuteficit de vitamina B12rdquo

Arch Intern Med 1979 Jan139(1)47-50

Macrocytosis mild anemia and delay in the diagnosis of pernicious anemiaCarmel R

Various factors led to delays of several months to several years in the diagnosis of pernicious anemia in 11 patients occasionally with serious consequences These cases illustrate that earlier diagnosis is possible with closer attention to abnormal results of common tests Macrocytosis detected by high mean corpuscular volume often preceded anemia but was not investigated especially when anemia was only slight Several cases demonstrated that vitamin B12 deficiency may initially produce only a mild macrocytic anemia which is maintained for a long period before a rapid worsening supervenes the reason for the latter acceleration of anemia is unknown Most serious was the evidence that mild anemias are often ignored Stricter attention to the established limits of normal hemoglobin values is required These aspects of physician performance have implication for the recognition of all anemias

Publication Types Case Reports

PMID 760683 [PubMed - indexed for MEDLINE]

JOURNAL ARTICLE

Problems in the diagnosis and investigation of megaloblastic anemia

C M Shojania

The diagnosis of megaloblastic anemia and the differentiation of folate and vitamin B12 deficiency require in addition to careful attention to the history and physical findings the use of laboratory tests In this paper the commonly ordered tests for such a diagnosis are discussed with emphasis on the conditions that may cause false-positive or false-negative results in the complete blood count examination of a peripheral blood smear and a bone marrow specimen serum and erythrocyte folate assays serum vitamin B12 assays tests of vitamin B12 absorption and gastric analysis

Canadian Medical Association Journal Vol 122 Issue 9 999-1004 Copyright copy 1980 by Canadian Medical Association

  • Paacutegina 1
  • Paacutegina 2
  • Paacutegina 3
  • Paacutegina 4
  • Paacutegina 5
  • Paacutegina 6
  • Paacutegina 7
  • Paacutegina 8
  • Paacutegina 9
  • Paacutegina 10
  • Paacutegina 11
  • Paacutegina 12
  • Paacutegina 13
  • Paacutegina 14
  • Paacutegina 15
  • Paacutegina 16
  • Paacutegina 17
  • Paacutegina 18
  • Paacutegina 19
  • Paacutegina 20
  • Paacutegina 21
  • Paacutegina 22
  • Paacutegina 23
  • Paacutegina 24
  • Paacutegina 25
  • Paacutegina 26
  • Paacutegina 27
Page 11: MC: Trastorno de la marcha EAneurologiauruguay.org/home/images//deficitb12.pdf · s. cordonal posterior ... sÍndrome del asa ciega: por estancamiento del contenido intestinal y sobrecrecimiento

LA ldquoTRAMPArdquo DEL ACIDO FOLICO

Copyright copy 2007 by the American Roentgen Ray Society

Ravina B et al Am J Roentgenol 2000174863-865

52-year-old man with

Subacute combined

degeneration of

spinal cord

Rev Meacuted Chile 2004 132 1377-1382Mielopatiacutea por deacuteficit de vitamina B12 caracterizacioacuten cliacutenica de 11 casosJorge Nogales-Gaete

Reversible Myelopathy in a 34-Year-Old Man With Vitamin B12 DeficiencySEAN J PITTOCK MD TROY A PAYNE MD AND C MICHEL HARPER MD

Mayo Clin Proc 200277291-294

Copyright copy2008 Canadian Medical Association or its licensors

Wong C L et al CMAJ 2008178279-281

Magnetic resonance imaging scans of the brain showing changes consistent with cobalamin deficiency

N Engl J Med 1952 Jul 3247(1)15-7 Links

Studies on the mutual effect of suboptimal oral doses of vitamin B12 and folic acid in pernicious anemia

REISNER EH WEINER L

PMID 14941273 [PubMed - indexed for MEDLINE]

J Lab Clin Med 1959 Jan53(1)22-38 Links

Folic acid and vitamin B12 in pernicious anemia studies on patients treated with these substances over a ten year period

WILL JJ MUELLER JF BRODINE C KIELY CE FRIEDMAN B HAWKINS VR DUTRA J VILTER RW

PMID 13621020 [PubMed - indexed for MEDLINE]

Rev Meacuted Chile 2004 132 1377-1382

ldquoNos llama la atencioacuten la asociacioacuten al menos temporal entre el aumento de casos observados y el inicio del programa de suplementacioacuten de la harina con aacutecido foacutelico (22 mgkilo) iniciada en enero de 2000 en Chilerdquohellip ldquoAtendiendo a esta potencial situacioacuten la autoridad sanitaria deberiacutea organizar un estudio formal al respecto o en su defecto canalizar centralmente un registro de notificacioacuten obligatoria de casos de alteraciones neuroloacutegicas centrales atribuibles a deacuteficit de vitamina B12rdquo

Arch Intern Med 1979 Jan139(1)47-50

Macrocytosis mild anemia and delay in the diagnosis of pernicious anemiaCarmel R

Various factors led to delays of several months to several years in the diagnosis of pernicious anemia in 11 patients occasionally with serious consequences These cases illustrate that earlier diagnosis is possible with closer attention to abnormal results of common tests Macrocytosis detected by high mean corpuscular volume often preceded anemia but was not investigated especially when anemia was only slight Several cases demonstrated that vitamin B12 deficiency may initially produce only a mild macrocytic anemia which is maintained for a long period before a rapid worsening supervenes the reason for the latter acceleration of anemia is unknown Most serious was the evidence that mild anemias are often ignored Stricter attention to the established limits of normal hemoglobin values is required These aspects of physician performance have implication for the recognition of all anemias

Publication Types Case Reports

PMID 760683 [PubMed - indexed for MEDLINE]

JOURNAL ARTICLE

Problems in the diagnosis and investigation of megaloblastic anemia

C M Shojania

The diagnosis of megaloblastic anemia and the differentiation of folate and vitamin B12 deficiency require in addition to careful attention to the history and physical findings the use of laboratory tests In this paper the commonly ordered tests for such a diagnosis are discussed with emphasis on the conditions that may cause false-positive or false-negative results in the complete blood count examination of a peripheral blood smear and a bone marrow specimen serum and erythrocyte folate assays serum vitamin B12 assays tests of vitamin B12 absorption and gastric analysis

Canadian Medical Association Journal Vol 122 Issue 9 999-1004 Copyright copy 1980 by Canadian Medical Association

  • Paacutegina 1
  • Paacutegina 2
  • Paacutegina 3
  • Paacutegina 4
  • Paacutegina 5
  • Paacutegina 6
  • Paacutegina 7
  • Paacutegina 8
  • Paacutegina 9
  • Paacutegina 10
  • Paacutegina 11
  • Paacutegina 12
  • Paacutegina 13
  • Paacutegina 14
  • Paacutegina 15
  • Paacutegina 16
  • Paacutegina 17
  • Paacutegina 18
  • Paacutegina 19
  • Paacutegina 20
  • Paacutegina 21
  • Paacutegina 22
  • Paacutegina 23
  • Paacutegina 24
  • Paacutegina 25
  • Paacutegina 26
  • Paacutegina 27
Page 12: MC: Trastorno de la marcha EAneurologiauruguay.org/home/images//deficitb12.pdf · s. cordonal posterior ... sÍndrome del asa ciega: por estancamiento del contenido intestinal y sobrecrecimiento

Copyright copy 2007 by the American Roentgen Ray Society

Ravina B et al Am J Roentgenol 2000174863-865

52-year-old man with

Subacute combined

degeneration of

spinal cord

Rev Meacuted Chile 2004 132 1377-1382Mielopatiacutea por deacuteficit de vitamina B12 caracterizacioacuten cliacutenica de 11 casosJorge Nogales-Gaete

Reversible Myelopathy in a 34-Year-Old Man With Vitamin B12 DeficiencySEAN J PITTOCK MD TROY A PAYNE MD AND C MICHEL HARPER MD

Mayo Clin Proc 200277291-294

Copyright copy2008 Canadian Medical Association or its licensors

Wong C L et al CMAJ 2008178279-281

Magnetic resonance imaging scans of the brain showing changes consistent with cobalamin deficiency

N Engl J Med 1952 Jul 3247(1)15-7 Links

Studies on the mutual effect of suboptimal oral doses of vitamin B12 and folic acid in pernicious anemia

REISNER EH WEINER L

PMID 14941273 [PubMed - indexed for MEDLINE]

J Lab Clin Med 1959 Jan53(1)22-38 Links

Folic acid and vitamin B12 in pernicious anemia studies on patients treated with these substances over a ten year period

WILL JJ MUELLER JF BRODINE C KIELY CE FRIEDMAN B HAWKINS VR DUTRA J VILTER RW

PMID 13621020 [PubMed - indexed for MEDLINE]

Rev Meacuted Chile 2004 132 1377-1382

ldquoNos llama la atencioacuten la asociacioacuten al menos temporal entre el aumento de casos observados y el inicio del programa de suplementacioacuten de la harina con aacutecido foacutelico (22 mgkilo) iniciada en enero de 2000 en Chilerdquohellip ldquoAtendiendo a esta potencial situacioacuten la autoridad sanitaria deberiacutea organizar un estudio formal al respecto o en su defecto canalizar centralmente un registro de notificacioacuten obligatoria de casos de alteraciones neuroloacutegicas centrales atribuibles a deacuteficit de vitamina B12rdquo

Arch Intern Med 1979 Jan139(1)47-50

Macrocytosis mild anemia and delay in the diagnosis of pernicious anemiaCarmel R

Various factors led to delays of several months to several years in the diagnosis of pernicious anemia in 11 patients occasionally with serious consequences These cases illustrate that earlier diagnosis is possible with closer attention to abnormal results of common tests Macrocytosis detected by high mean corpuscular volume often preceded anemia but was not investigated especially when anemia was only slight Several cases demonstrated that vitamin B12 deficiency may initially produce only a mild macrocytic anemia which is maintained for a long period before a rapid worsening supervenes the reason for the latter acceleration of anemia is unknown Most serious was the evidence that mild anemias are often ignored Stricter attention to the established limits of normal hemoglobin values is required These aspects of physician performance have implication for the recognition of all anemias

Publication Types Case Reports

PMID 760683 [PubMed - indexed for MEDLINE]

JOURNAL ARTICLE

Problems in the diagnosis and investigation of megaloblastic anemia

C M Shojania

The diagnosis of megaloblastic anemia and the differentiation of folate and vitamin B12 deficiency require in addition to careful attention to the history and physical findings the use of laboratory tests In this paper the commonly ordered tests for such a diagnosis are discussed with emphasis on the conditions that may cause false-positive or false-negative results in the complete blood count examination of a peripheral blood smear and a bone marrow specimen serum and erythrocyte folate assays serum vitamin B12 assays tests of vitamin B12 absorption and gastric analysis

Canadian Medical Association Journal Vol 122 Issue 9 999-1004 Copyright copy 1980 by Canadian Medical Association

  • Paacutegina 1
  • Paacutegina 2
  • Paacutegina 3
  • Paacutegina 4
  • Paacutegina 5
  • Paacutegina 6
  • Paacutegina 7
  • Paacutegina 8
  • Paacutegina 9
  • Paacutegina 10
  • Paacutegina 11
  • Paacutegina 12
  • Paacutegina 13
  • Paacutegina 14
  • Paacutegina 15
  • Paacutegina 16
  • Paacutegina 17
  • Paacutegina 18
  • Paacutegina 19
  • Paacutegina 20
  • Paacutegina 21
  • Paacutegina 22
  • Paacutegina 23
  • Paacutegina 24
  • Paacutegina 25
  • Paacutegina 26
  • Paacutegina 27
Page 13: MC: Trastorno de la marcha EAneurologiauruguay.org/home/images//deficitb12.pdf · s. cordonal posterior ... sÍndrome del asa ciega: por estancamiento del contenido intestinal y sobrecrecimiento

Rev Meacuted Chile 2004 132 1377-1382Mielopatiacutea por deacuteficit de vitamina B12 caracterizacioacuten cliacutenica de 11 casosJorge Nogales-Gaete

Reversible Myelopathy in a 34-Year-Old Man With Vitamin B12 DeficiencySEAN J PITTOCK MD TROY A PAYNE MD AND C MICHEL HARPER MD

Mayo Clin Proc 200277291-294

Copyright copy2008 Canadian Medical Association or its licensors

Wong C L et al CMAJ 2008178279-281

Magnetic resonance imaging scans of the brain showing changes consistent with cobalamin deficiency

N Engl J Med 1952 Jul 3247(1)15-7 Links

Studies on the mutual effect of suboptimal oral doses of vitamin B12 and folic acid in pernicious anemia

REISNER EH WEINER L

PMID 14941273 [PubMed - indexed for MEDLINE]

J Lab Clin Med 1959 Jan53(1)22-38 Links

Folic acid and vitamin B12 in pernicious anemia studies on patients treated with these substances over a ten year period

WILL JJ MUELLER JF BRODINE C KIELY CE FRIEDMAN B HAWKINS VR DUTRA J VILTER RW

PMID 13621020 [PubMed - indexed for MEDLINE]

Rev Meacuted Chile 2004 132 1377-1382

ldquoNos llama la atencioacuten la asociacioacuten al menos temporal entre el aumento de casos observados y el inicio del programa de suplementacioacuten de la harina con aacutecido foacutelico (22 mgkilo) iniciada en enero de 2000 en Chilerdquohellip ldquoAtendiendo a esta potencial situacioacuten la autoridad sanitaria deberiacutea organizar un estudio formal al respecto o en su defecto canalizar centralmente un registro de notificacioacuten obligatoria de casos de alteraciones neuroloacutegicas centrales atribuibles a deacuteficit de vitamina B12rdquo

Arch Intern Med 1979 Jan139(1)47-50

Macrocytosis mild anemia and delay in the diagnosis of pernicious anemiaCarmel R

Various factors led to delays of several months to several years in the diagnosis of pernicious anemia in 11 patients occasionally with serious consequences These cases illustrate that earlier diagnosis is possible with closer attention to abnormal results of common tests Macrocytosis detected by high mean corpuscular volume often preceded anemia but was not investigated especially when anemia was only slight Several cases demonstrated that vitamin B12 deficiency may initially produce only a mild macrocytic anemia which is maintained for a long period before a rapid worsening supervenes the reason for the latter acceleration of anemia is unknown Most serious was the evidence that mild anemias are often ignored Stricter attention to the established limits of normal hemoglobin values is required These aspects of physician performance have implication for the recognition of all anemias

Publication Types Case Reports

PMID 760683 [PubMed - indexed for MEDLINE]

JOURNAL ARTICLE

Problems in the diagnosis and investigation of megaloblastic anemia

C M Shojania

The diagnosis of megaloblastic anemia and the differentiation of folate and vitamin B12 deficiency require in addition to careful attention to the history and physical findings the use of laboratory tests In this paper the commonly ordered tests for such a diagnosis are discussed with emphasis on the conditions that may cause false-positive or false-negative results in the complete blood count examination of a peripheral blood smear and a bone marrow specimen serum and erythrocyte folate assays serum vitamin B12 assays tests of vitamin B12 absorption and gastric analysis

Canadian Medical Association Journal Vol 122 Issue 9 999-1004 Copyright copy 1980 by Canadian Medical Association

  • Paacutegina 1
  • Paacutegina 2
  • Paacutegina 3
  • Paacutegina 4
  • Paacutegina 5
  • Paacutegina 6
  • Paacutegina 7
  • Paacutegina 8
  • Paacutegina 9
  • Paacutegina 10
  • Paacutegina 11
  • Paacutegina 12
  • Paacutegina 13
  • Paacutegina 14
  • Paacutegina 15
  • Paacutegina 16
  • Paacutegina 17
  • Paacutegina 18
  • Paacutegina 19
  • Paacutegina 20
  • Paacutegina 21
  • Paacutegina 22
  • Paacutegina 23
  • Paacutegina 24
  • Paacutegina 25
  • Paacutegina 26
  • Paacutegina 27
Page 14: MC: Trastorno de la marcha EAneurologiauruguay.org/home/images//deficitb12.pdf · s. cordonal posterior ... sÍndrome del asa ciega: por estancamiento del contenido intestinal y sobrecrecimiento

Reversible Myelopathy in a 34-Year-Old Man With Vitamin B12 DeficiencySEAN J PITTOCK MD TROY A PAYNE MD AND C MICHEL HARPER MD

Mayo Clin Proc 200277291-294

Copyright copy2008 Canadian Medical Association or its licensors

Wong C L et al CMAJ 2008178279-281

Magnetic resonance imaging scans of the brain showing changes consistent with cobalamin deficiency

N Engl J Med 1952 Jul 3247(1)15-7 Links

Studies on the mutual effect of suboptimal oral doses of vitamin B12 and folic acid in pernicious anemia

REISNER EH WEINER L

PMID 14941273 [PubMed - indexed for MEDLINE]

J Lab Clin Med 1959 Jan53(1)22-38 Links

Folic acid and vitamin B12 in pernicious anemia studies on patients treated with these substances over a ten year period

WILL JJ MUELLER JF BRODINE C KIELY CE FRIEDMAN B HAWKINS VR DUTRA J VILTER RW

PMID 13621020 [PubMed - indexed for MEDLINE]

Rev Meacuted Chile 2004 132 1377-1382

ldquoNos llama la atencioacuten la asociacioacuten al menos temporal entre el aumento de casos observados y el inicio del programa de suplementacioacuten de la harina con aacutecido foacutelico (22 mgkilo) iniciada en enero de 2000 en Chilerdquohellip ldquoAtendiendo a esta potencial situacioacuten la autoridad sanitaria deberiacutea organizar un estudio formal al respecto o en su defecto canalizar centralmente un registro de notificacioacuten obligatoria de casos de alteraciones neuroloacutegicas centrales atribuibles a deacuteficit de vitamina B12rdquo

Arch Intern Med 1979 Jan139(1)47-50

Macrocytosis mild anemia and delay in the diagnosis of pernicious anemiaCarmel R

Various factors led to delays of several months to several years in the diagnosis of pernicious anemia in 11 patients occasionally with serious consequences These cases illustrate that earlier diagnosis is possible with closer attention to abnormal results of common tests Macrocytosis detected by high mean corpuscular volume often preceded anemia but was not investigated especially when anemia was only slight Several cases demonstrated that vitamin B12 deficiency may initially produce only a mild macrocytic anemia which is maintained for a long period before a rapid worsening supervenes the reason for the latter acceleration of anemia is unknown Most serious was the evidence that mild anemias are often ignored Stricter attention to the established limits of normal hemoglobin values is required These aspects of physician performance have implication for the recognition of all anemias

Publication Types Case Reports

PMID 760683 [PubMed - indexed for MEDLINE]

JOURNAL ARTICLE

Problems in the diagnosis and investigation of megaloblastic anemia

C M Shojania

The diagnosis of megaloblastic anemia and the differentiation of folate and vitamin B12 deficiency require in addition to careful attention to the history and physical findings the use of laboratory tests In this paper the commonly ordered tests for such a diagnosis are discussed with emphasis on the conditions that may cause false-positive or false-negative results in the complete blood count examination of a peripheral blood smear and a bone marrow specimen serum and erythrocyte folate assays serum vitamin B12 assays tests of vitamin B12 absorption and gastric analysis

Canadian Medical Association Journal Vol 122 Issue 9 999-1004 Copyright copy 1980 by Canadian Medical Association

  • Paacutegina 1
  • Paacutegina 2
  • Paacutegina 3
  • Paacutegina 4
  • Paacutegina 5
  • Paacutegina 6
  • Paacutegina 7
  • Paacutegina 8
  • Paacutegina 9
  • Paacutegina 10
  • Paacutegina 11
  • Paacutegina 12
  • Paacutegina 13
  • Paacutegina 14
  • Paacutegina 15
  • Paacutegina 16
  • Paacutegina 17
  • Paacutegina 18
  • Paacutegina 19
  • Paacutegina 20
  • Paacutegina 21
  • Paacutegina 22
  • Paacutegina 23
  • Paacutegina 24
  • Paacutegina 25
  • Paacutegina 26
  • Paacutegina 27
Page 15: MC: Trastorno de la marcha EAneurologiauruguay.org/home/images//deficitb12.pdf · s. cordonal posterior ... sÍndrome del asa ciega: por estancamiento del contenido intestinal y sobrecrecimiento

Copyright copy2008 Canadian Medical Association or its licensors

Wong C L et al CMAJ 2008178279-281

Magnetic resonance imaging scans of the brain showing changes consistent with cobalamin deficiency

N Engl J Med 1952 Jul 3247(1)15-7 Links

Studies on the mutual effect of suboptimal oral doses of vitamin B12 and folic acid in pernicious anemia

REISNER EH WEINER L

PMID 14941273 [PubMed - indexed for MEDLINE]

J Lab Clin Med 1959 Jan53(1)22-38 Links

Folic acid and vitamin B12 in pernicious anemia studies on patients treated with these substances over a ten year period

WILL JJ MUELLER JF BRODINE C KIELY CE FRIEDMAN B HAWKINS VR DUTRA J VILTER RW

PMID 13621020 [PubMed - indexed for MEDLINE]

Rev Meacuted Chile 2004 132 1377-1382

ldquoNos llama la atencioacuten la asociacioacuten al menos temporal entre el aumento de casos observados y el inicio del programa de suplementacioacuten de la harina con aacutecido foacutelico (22 mgkilo) iniciada en enero de 2000 en Chilerdquohellip ldquoAtendiendo a esta potencial situacioacuten la autoridad sanitaria deberiacutea organizar un estudio formal al respecto o en su defecto canalizar centralmente un registro de notificacioacuten obligatoria de casos de alteraciones neuroloacutegicas centrales atribuibles a deacuteficit de vitamina B12rdquo

Arch Intern Med 1979 Jan139(1)47-50

Macrocytosis mild anemia and delay in the diagnosis of pernicious anemiaCarmel R

Various factors led to delays of several months to several years in the diagnosis of pernicious anemia in 11 patients occasionally with serious consequences These cases illustrate that earlier diagnosis is possible with closer attention to abnormal results of common tests Macrocytosis detected by high mean corpuscular volume often preceded anemia but was not investigated especially when anemia was only slight Several cases demonstrated that vitamin B12 deficiency may initially produce only a mild macrocytic anemia which is maintained for a long period before a rapid worsening supervenes the reason for the latter acceleration of anemia is unknown Most serious was the evidence that mild anemias are often ignored Stricter attention to the established limits of normal hemoglobin values is required These aspects of physician performance have implication for the recognition of all anemias

Publication Types Case Reports

PMID 760683 [PubMed - indexed for MEDLINE]

JOURNAL ARTICLE

Problems in the diagnosis and investigation of megaloblastic anemia

C M Shojania

The diagnosis of megaloblastic anemia and the differentiation of folate and vitamin B12 deficiency require in addition to careful attention to the history and physical findings the use of laboratory tests In this paper the commonly ordered tests for such a diagnosis are discussed with emphasis on the conditions that may cause false-positive or false-negative results in the complete blood count examination of a peripheral blood smear and a bone marrow specimen serum and erythrocyte folate assays serum vitamin B12 assays tests of vitamin B12 absorption and gastric analysis

Canadian Medical Association Journal Vol 122 Issue 9 999-1004 Copyright copy 1980 by Canadian Medical Association

  • Paacutegina 1
  • Paacutegina 2
  • Paacutegina 3
  • Paacutegina 4
  • Paacutegina 5
  • Paacutegina 6
  • Paacutegina 7
  • Paacutegina 8
  • Paacutegina 9
  • Paacutegina 10
  • Paacutegina 11
  • Paacutegina 12
  • Paacutegina 13
  • Paacutegina 14
  • Paacutegina 15
  • Paacutegina 16
  • Paacutegina 17
  • Paacutegina 18
  • Paacutegina 19
  • Paacutegina 20
  • Paacutegina 21
  • Paacutegina 22
  • Paacutegina 23
  • Paacutegina 24
  • Paacutegina 25
  • Paacutegina 26
  • Paacutegina 27
Page 16: MC: Trastorno de la marcha EAneurologiauruguay.org/home/images//deficitb12.pdf · s. cordonal posterior ... sÍndrome del asa ciega: por estancamiento del contenido intestinal y sobrecrecimiento

N Engl J Med 1952 Jul 3247(1)15-7 Links

Studies on the mutual effect of suboptimal oral doses of vitamin B12 and folic acid in pernicious anemia

REISNER EH WEINER L

PMID 14941273 [PubMed - indexed for MEDLINE]

J Lab Clin Med 1959 Jan53(1)22-38 Links

Folic acid and vitamin B12 in pernicious anemia studies on patients treated with these substances over a ten year period

WILL JJ MUELLER JF BRODINE C KIELY CE FRIEDMAN B HAWKINS VR DUTRA J VILTER RW

PMID 13621020 [PubMed - indexed for MEDLINE]

Rev Meacuted Chile 2004 132 1377-1382

ldquoNos llama la atencioacuten la asociacioacuten al menos temporal entre el aumento de casos observados y el inicio del programa de suplementacioacuten de la harina con aacutecido foacutelico (22 mgkilo) iniciada en enero de 2000 en Chilerdquohellip ldquoAtendiendo a esta potencial situacioacuten la autoridad sanitaria deberiacutea organizar un estudio formal al respecto o en su defecto canalizar centralmente un registro de notificacioacuten obligatoria de casos de alteraciones neuroloacutegicas centrales atribuibles a deacuteficit de vitamina B12rdquo

Arch Intern Med 1979 Jan139(1)47-50

Macrocytosis mild anemia and delay in the diagnosis of pernicious anemiaCarmel R

Various factors led to delays of several months to several years in the diagnosis of pernicious anemia in 11 patients occasionally with serious consequences These cases illustrate that earlier diagnosis is possible with closer attention to abnormal results of common tests Macrocytosis detected by high mean corpuscular volume often preceded anemia but was not investigated especially when anemia was only slight Several cases demonstrated that vitamin B12 deficiency may initially produce only a mild macrocytic anemia which is maintained for a long period before a rapid worsening supervenes the reason for the latter acceleration of anemia is unknown Most serious was the evidence that mild anemias are often ignored Stricter attention to the established limits of normal hemoglobin values is required These aspects of physician performance have implication for the recognition of all anemias

Publication Types Case Reports

PMID 760683 [PubMed - indexed for MEDLINE]

JOURNAL ARTICLE

Problems in the diagnosis and investigation of megaloblastic anemia

C M Shojania

The diagnosis of megaloblastic anemia and the differentiation of folate and vitamin B12 deficiency require in addition to careful attention to the history and physical findings the use of laboratory tests In this paper the commonly ordered tests for such a diagnosis are discussed with emphasis on the conditions that may cause false-positive or false-negative results in the complete blood count examination of a peripheral blood smear and a bone marrow specimen serum and erythrocyte folate assays serum vitamin B12 assays tests of vitamin B12 absorption and gastric analysis

Canadian Medical Association Journal Vol 122 Issue 9 999-1004 Copyright copy 1980 by Canadian Medical Association

  • Paacutegina 1
  • Paacutegina 2
  • Paacutegina 3
  • Paacutegina 4
  • Paacutegina 5
  • Paacutegina 6
  • Paacutegina 7
  • Paacutegina 8
  • Paacutegina 9
  • Paacutegina 10
  • Paacutegina 11
  • Paacutegina 12
  • Paacutegina 13
  • Paacutegina 14
  • Paacutegina 15
  • Paacutegina 16
  • Paacutegina 17
  • Paacutegina 18
  • Paacutegina 19
  • Paacutegina 20
  • Paacutegina 21
  • Paacutegina 22
  • Paacutegina 23
  • Paacutegina 24
  • Paacutegina 25
  • Paacutegina 26
  • Paacutegina 27
Page 17: MC: Trastorno de la marcha EAneurologiauruguay.org/home/images//deficitb12.pdf · s. cordonal posterior ... sÍndrome del asa ciega: por estancamiento del contenido intestinal y sobrecrecimiento

J Lab Clin Med 1959 Jan53(1)22-38 Links

Folic acid and vitamin B12 in pernicious anemia studies on patients treated with these substances over a ten year period

WILL JJ MUELLER JF BRODINE C KIELY CE FRIEDMAN B HAWKINS VR DUTRA J VILTER RW

PMID 13621020 [PubMed - indexed for MEDLINE]

Rev Meacuted Chile 2004 132 1377-1382

ldquoNos llama la atencioacuten la asociacioacuten al menos temporal entre el aumento de casos observados y el inicio del programa de suplementacioacuten de la harina con aacutecido foacutelico (22 mgkilo) iniciada en enero de 2000 en Chilerdquohellip ldquoAtendiendo a esta potencial situacioacuten la autoridad sanitaria deberiacutea organizar un estudio formal al respecto o en su defecto canalizar centralmente un registro de notificacioacuten obligatoria de casos de alteraciones neuroloacutegicas centrales atribuibles a deacuteficit de vitamina B12rdquo

Arch Intern Med 1979 Jan139(1)47-50

Macrocytosis mild anemia and delay in the diagnosis of pernicious anemiaCarmel R

Various factors led to delays of several months to several years in the diagnosis of pernicious anemia in 11 patients occasionally with serious consequences These cases illustrate that earlier diagnosis is possible with closer attention to abnormal results of common tests Macrocytosis detected by high mean corpuscular volume often preceded anemia but was not investigated especially when anemia was only slight Several cases demonstrated that vitamin B12 deficiency may initially produce only a mild macrocytic anemia which is maintained for a long period before a rapid worsening supervenes the reason for the latter acceleration of anemia is unknown Most serious was the evidence that mild anemias are often ignored Stricter attention to the established limits of normal hemoglobin values is required These aspects of physician performance have implication for the recognition of all anemias

Publication Types Case Reports

PMID 760683 [PubMed - indexed for MEDLINE]

JOURNAL ARTICLE

Problems in the diagnosis and investigation of megaloblastic anemia

C M Shojania

The diagnosis of megaloblastic anemia and the differentiation of folate and vitamin B12 deficiency require in addition to careful attention to the history and physical findings the use of laboratory tests In this paper the commonly ordered tests for such a diagnosis are discussed with emphasis on the conditions that may cause false-positive or false-negative results in the complete blood count examination of a peripheral blood smear and a bone marrow specimen serum and erythrocyte folate assays serum vitamin B12 assays tests of vitamin B12 absorption and gastric analysis

Canadian Medical Association Journal Vol 122 Issue 9 999-1004 Copyright copy 1980 by Canadian Medical Association

  • Paacutegina 1
  • Paacutegina 2
  • Paacutegina 3
  • Paacutegina 4
  • Paacutegina 5
  • Paacutegina 6
  • Paacutegina 7
  • Paacutegina 8
  • Paacutegina 9
  • Paacutegina 10
  • Paacutegina 11
  • Paacutegina 12
  • Paacutegina 13
  • Paacutegina 14
  • Paacutegina 15
  • Paacutegina 16
  • Paacutegina 17
  • Paacutegina 18
  • Paacutegina 19
  • Paacutegina 20
  • Paacutegina 21
  • Paacutegina 22
  • Paacutegina 23
  • Paacutegina 24
  • Paacutegina 25
  • Paacutegina 26
  • Paacutegina 27
Page 18: MC: Trastorno de la marcha EAneurologiauruguay.org/home/images//deficitb12.pdf · s. cordonal posterior ... sÍndrome del asa ciega: por estancamiento del contenido intestinal y sobrecrecimiento

Rev Meacuted Chile 2004 132 1377-1382

ldquoNos llama la atencioacuten la asociacioacuten al menos temporal entre el aumento de casos observados y el inicio del programa de suplementacioacuten de la harina con aacutecido foacutelico (22 mgkilo) iniciada en enero de 2000 en Chilerdquohellip ldquoAtendiendo a esta potencial situacioacuten la autoridad sanitaria deberiacutea organizar un estudio formal al respecto o en su defecto canalizar centralmente un registro de notificacioacuten obligatoria de casos de alteraciones neuroloacutegicas centrales atribuibles a deacuteficit de vitamina B12rdquo

Arch Intern Med 1979 Jan139(1)47-50

Macrocytosis mild anemia and delay in the diagnosis of pernicious anemiaCarmel R

Various factors led to delays of several months to several years in the diagnosis of pernicious anemia in 11 patients occasionally with serious consequences These cases illustrate that earlier diagnosis is possible with closer attention to abnormal results of common tests Macrocytosis detected by high mean corpuscular volume often preceded anemia but was not investigated especially when anemia was only slight Several cases demonstrated that vitamin B12 deficiency may initially produce only a mild macrocytic anemia which is maintained for a long period before a rapid worsening supervenes the reason for the latter acceleration of anemia is unknown Most serious was the evidence that mild anemias are often ignored Stricter attention to the established limits of normal hemoglobin values is required These aspects of physician performance have implication for the recognition of all anemias

Publication Types Case Reports

PMID 760683 [PubMed - indexed for MEDLINE]

JOURNAL ARTICLE

Problems in the diagnosis and investigation of megaloblastic anemia

C M Shojania

The diagnosis of megaloblastic anemia and the differentiation of folate and vitamin B12 deficiency require in addition to careful attention to the history and physical findings the use of laboratory tests In this paper the commonly ordered tests for such a diagnosis are discussed with emphasis on the conditions that may cause false-positive or false-negative results in the complete blood count examination of a peripheral blood smear and a bone marrow specimen serum and erythrocyte folate assays serum vitamin B12 assays tests of vitamin B12 absorption and gastric analysis

Canadian Medical Association Journal Vol 122 Issue 9 999-1004 Copyright copy 1980 by Canadian Medical Association

  • Paacutegina 1
  • Paacutegina 2
  • Paacutegina 3
  • Paacutegina 4
  • Paacutegina 5
  • Paacutegina 6
  • Paacutegina 7
  • Paacutegina 8
  • Paacutegina 9
  • Paacutegina 10
  • Paacutegina 11
  • Paacutegina 12
  • Paacutegina 13
  • Paacutegina 14
  • Paacutegina 15
  • Paacutegina 16
  • Paacutegina 17
  • Paacutegina 18
  • Paacutegina 19
  • Paacutegina 20
  • Paacutegina 21
  • Paacutegina 22
  • Paacutegina 23
  • Paacutegina 24
  • Paacutegina 25
  • Paacutegina 26
  • Paacutegina 27
Page 19: MC: Trastorno de la marcha EAneurologiauruguay.org/home/images//deficitb12.pdf · s. cordonal posterior ... sÍndrome del asa ciega: por estancamiento del contenido intestinal y sobrecrecimiento

Arch Intern Med 1979 Jan139(1)47-50

Macrocytosis mild anemia and delay in the diagnosis of pernicious anemiaCarmel R

Various factors led to delays of several months to several years in the diagnosis of pernicious anemia in 11 patients occasionally with serious consequences These cases illustrate that earlier diagnosis is possible with closer attention to abnormal results of common tests Macrocytosis detected by high mean corpuscular volume often preceded anemia but was not investigated especially when anemia was only slight Several cases demonstrated that vitamin B12 deficiency may initially produce only a mild macrocytic anemia which is maintained for a long period before a rapid worsening supervenes the reason for the latter acceleration of anemia is unknown Most serious was the evidence that mild anemias are often ignored Stricter attention to the established limits of normal hemoglobin values is required These aspects of physician performance have implication for the recognition of all anemias

Publication Types Case Reports

PMID 760683 [PubMed - indexed for MEDLINE]

JOURNAL ARTICLE

Problems in the diagnosis and investigation of megaloblastic anemia

C M Shojania

The diagnosis of megaloblastic anemia and the differentiation of folate and vitamin B12 deficiency require in addition to careful attention to the history and physical findings the use of laboratory tests In this paper the commonly ordered tests for such a diagnosis are discussed with emphasis on the conditions that may cause false-positive or false-negative results in the complete blood count examination of a peripheral blood smear and a bone marrow specimen serum and erythrocyte folate assays serum vitamin B12 assays tests of vitamin B12 absorption and gastric analysis

Canadian Medical Association Journal Vol 122 Issue 9 999-1004 Copyright copy 1980 by Canadian Medical Association

  • Paacutegina 1
  • Paacutegina 2
  • Paacutegina 3
  • Paacutegina 4
  • Paacutegina 5
  • Paacutegina 6
  • Paacutegina 7
  • Paacutegina 8
  • Paacutegina 9
  • Paacutegina 10
  • Paacutegina 11
  • Paacutegina 12
  • Paacutegina 13
  • Paacutegina 14
  • Paacutegina 15
  • Paacutegina 16
  • Paacutegina 17
  • Paacutegina 18
  • Paacutegina 19
  • Paacutegina 20
  • Paacutegina 21
  • Paacutegina 22
  • Paacutegina 23
  • Paacutegina 24
  • Paacutegina 25
  • Paacutegina 26
  • Paacutegina 27
Page 20: MC: Trastorno de la marcha EAneurologiauruguay.org/home/images//deficitb12.pdf · s. cordonal posterior ... sÍndrome del asa ciega: por estancamiento del contenido intestinal y sobrecrecimiento

JOURNAL ARTICLE

Problems in the diagnosis and investigation of megaloblastic anemia

C M Shojania

The diagnosis of megaloblastic anemia and the differentiation of folate and vitamin B12 deficiency require in addition to careful attention to the history and physical findings the use of laboratory tests In this paper the commonly ordered tests for such a diagnosis are discussed with emphasis on the conditions that may cause false-positive or false-negative results in the complete blood count examination of a peripheral blood smear and a bone marrow specimen serum and erythrocyte folate assays serum vitamin B12 assays tests of vitamin B12 absorption and gastric analysis

Canadian Medical Association Journal Vol 122 Issue 9 999-1004 Copyright copy 1980 by Canadian Medical Association

  • Paacutegina 1
  • Paacutegina 2
  • Paacutegina 3
  • Paacutegina 4
  • Paacutegina 5
  • Paacutegina 6
  • Paacutegina 7
  • Paacutegina 8
  • Paacutegina 9
  • Paacutegina 10
  • Paacutegina 11
  • Paacutegina 12
  • Paacutegina 13
  • Paacutegina 14
  • Paacutegina 15
  • Paacutegina 16
  • Paacutegina 17
  • Paacutegina 18
  • Paacutegina 19
  • Paacutegina 20
  • Paacutegina 21
  • Paacutegina 22
  • Paacutegina 23
  • Paacutegina 24
  • Paacutegina 25
  • Paacutegina 26
  • Paacutegina 27