Table 2 GK pallidotomy for bradykinesia, rigidity, and dyskinesia treatment
From: Gamma knife radiosurgery for movement disorders: a concise review of the literature
1st Author (Year) | # Patients (Age Range) | Radiation Dose (Gy) | Follow-up (Range) | Improvement Rate | Complications Observed | Complication Rate |
|---|---|---|---|---|---|---|
Duma [3] (1999) | 18 (59-85 yrs) | 120-160 | Median: 8 months (6-40 months) | 33.3% | homonymous visual field cut, dysphagia, dysarthria, hemiparesis, hemianesthesia, worse gait | 50% |
Friedman [10] (1996) | 4 (61-74 yrs) | 180 | 18 month interval | 0% | dementia, psychosis | 25% |
Young [1] (1998) | 28 (68.2 ± 10.2 yrs**) | 120-160 | Mean: 22.3* months (12-44* months) | Bradykinesia/Rigidity rate: 64.3% Dyskinesia rate: 85.7% | homonymous hemianopsia | 3.6% |
Young [11] (1998) | 29 | 120-140 | Mean: 20.6 months (6-48 months) | Bradykinesia/Rigidity rate: 65.5% Dyskinesia rate: 86.6% | homonymous hemianopsia | 3.4% |