The effect of pallidotomy for alleviation of akinetic parkinsonism is modest but significant, and continues to be effective for at least 2 years.

• 对于中、晚期的帕金森氏症病患，立体定位苍白球烧灼术可以提供病患在运动症状上相当程度的缓解，且效果可以持续两年以上。