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Adverse events.
| Unilateral pallidotomy | Bilateral pallidotomy | |
|---|---|---|
| Cerebral infarction | 3 | 1 |
| Hemorrhage | 5 | 1 |
| Asymptomatic | 0 | 0 |
| Symptomatic | ||
| Parkinsonism 1 | 3 | 5 |
| Hemiparesis 1 | 2 | 0 |
| Visual disturbance 1 | 1 | 0 |
| Dysarthria 1 | 0 | 4 |
| Dysphagia 1 | 0 | 1 |
Adverse events not associated with cerebral infarction and hemorrhage.
