2009.06.09, isrs glomus presentation
TRANSCRIPT
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Stanford
CyberKnife
LONG-TERM RESULTS OF RADIOSURGERY IN THE TREATMENT OF PARAGANGLIOMAS
STANFORD CYBERKNIFE CENTERDEPARTMENTS OF NEUROSURGERY
AND RADIATION ONCOLOGY
ROBERT LIEBERSON, JOHN ADLER, GRIFF HARSH, MARCO LEE,
CLARA CHOI, SCOTT SOLTYS, IRIS GIBBS, ROB LOBER,
AND STEVEN CHANG
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Stanford
CyberKnifeParagangliomas
Indolent, locally invasive, tumors of sympathetic and parasympathetic ganglia cells
Difficult to resect, especially when intracranial
1941, Guild coined the term “glomus jugulare”
Stacy Rufus Guild
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Stanford
CyberKnifePatient Characteristics35 patients with 39 tumors, age 54 (21 to 86)
7 previously treated (7 surgery, 1 embolization)4 with multiple tumors3 syndromic (2 NF2, 1 inherited)
Location31 Cranial
6 Carotid
2 Spinal
Sex13 Men
22 Women
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Stanford
CyberKnifeSmall Lesions
0 - 8 cm3
1905 cGy (1600-2000) One fraction 79% Isodose 1.43 Conformality Index
8 - 16 cm3
2000 cGy (1800-2200) Two fractions 80% Isodose 1.39 Conformality Index
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Stanford
CyberKnifeMedium Lesions
16 - 32 cm3
2250 cGy (1800-2400) Three fractions 76% Isodose 1.34 C.I.
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Stanford
CyberKnifeLarge Lesions (1)
42 cm3
(8.4 x 3.1 x 2.8) 2400 in three for
each of two sections
Isodose 76%/79% C.I. 1.27/1.18
12/2006
3/2007
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Stanford
CyberKnifeLarge Lesions (2)
69 cm3
(8.6 x 3.5 x 2.8) 2500 in five Isodose 80% C.I. 1.32
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Stanford
CyberKnifeFollow-Up
Clinical 56 months
MRI 47 months
≥ 5 years 10 patients≥ 10 years 4 patients
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Stanford
CyberKnifeLocal Control
Feigl and Horstmann Radiosurgery Response ClassificationRRC Grade Definition
I Tumor shrinks at least 10%
II Tumor unchanged
III Tumor grows
21 of 39 tumors smaller (grade I) 16 of 39 tumors stable (grade II) None enlarged (grade III)
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Stanford
CyberKnife
0.0
.2
.4
.6
.8
1.0
Loca
l Con
trol
0 2 4 6 8 10 12 14 16 18Years
Open Surgery
CyberKnife
Local Control
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Stanford
CyberKnifeComplications Two patients with transient cranial neuropathies One patient with permanently increased vertigo
One patient, severely cachexic before SRS, died 1.3 months after treatment (malnutrition)
One with spinal tumors and radiculopathies did not improve and required open surgery
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Stanford
CyberKnifeOther SRS Series
18 centers, 345 patients, 1994-2009 86 patients previously operated 56.2 mean age, 9.38 cm3 mean size 1622 cGy mean, 39 mo. mean f/u 97.7 % local control 4.3 % complication rate
(CN deficits, vertigo, serous otitis, headache)
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Stanford
CyberKnifeSurgical Series 21 series, 769 patients, 1988-2005
*
82.9 % (568/685) local control ~48 % (~261/539) complications
(at least 40% CN palsies but also 3 deaths, > 10 CVA’s, > 30 wound infection/meningitis, cholesteotomas, aspiration pneumonias, tracheostomies, dysphagia) * Reviewed by Hinerman RW, Amdur RJ, Morris CG, Kirwan MA, MendenhALL WM.
Definitive Radiotherapy in the Management of Paragangliomas Arising in the Head and Neck: A 35-Year Experience. Head and Neck, 30:1431 (2008).
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Stanford
CyberKnifeConclusions SRS near 100% local control SRS complications rare, less
severe than from surgery SRS should be the primary
treatment for new or recurrent paragangliomas
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Stanford
CyberKnifeThank you
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Numbe
r of p
atients
Year
NEUROSURGERYSteven ChangJohn AdlerMike EdwardsGriff HarshJon ParkJaimie HendersonStefan MindeaRob LiebersonMarco Lee
RADIATION ONCOLOGYIris GibbsScott SoltysQuynh Le Don Goffinet Chris King Albert Koong Billy LooSarah DonaldsonSteve HancockDan ChangPhuoc TranDan Kapp
RADIOLOGYMary MarcellusNancy Fischbein
ENT, GENERALTHORACIC, AND UROLOGIC SURGERYRobert JacklerNick BlevinsRichard WhyteGeorge YangRalph GrecoJoe PrestiHarash Gill
PHYSICS AND RTSonja DeiterichTony Lo Tony HoLei WangLaurence JangJackei LoSandra Kuerth
NURSINGElizabeth LeeAmi LombardiChristine Rico ErbLaurie TupperMichelle Klesczewski
SUPPORTKai KoScarlett WhiteLucy TovarMerna GodoyBarbara PedrickAisha Ali
Treatments by Year