Initial experience with gamma knife surgery for endocrine ophthalmopathy.
OBJECTIVE
The aim of this study was to evaluate both the effectiveness and safety of the treatment of endocrine ophthalmopathy with gamma knife surgery (GKS).


METHODS
Five patients were included in a prospective study designed to assess the results of GKS of endocrine ophthalmopathy secondary to Graves disease. All the patients completed a 2-year follow-up period. During this period, the patients were evaluated both clinically and by means of additional methods, including computerized tomography and magnetic resonance imaging studies. The minimum dose delivered to the 50% isodose line was 6.5 Gy in all the patients. In all cases, a clinical improvement was observed. The best effect was seen in symptom regression related to soft-tissue involvement. No treatment-related side effects were detected.


CONCLUSIONS
In light of the results obtained the authors consider that GKS may be a safe and effective way to treat endocrine ophthalmopathy.
Antico
Julio C
JC
Department of Stereotactic, Functional, and Gamma Knife Radiosurgery, FLENI Neurology Institute, Buenos Aires, Argentina. jantico@fleni.org.ar
Crovetto
Luis
L
Tenca
Eduardo
E
Artes
Carlos
C
D000328:Adult; D000368:Aged; D005260:Female; D006111:Graves Disease / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D011829:Radiation Dosage; D016634:Radiosurgery / Q000295:instrumentation*; D014792:Visual Acuity / Q000502:physiology