Rj. Uitti et al., Efficacy of levodopa therapy on motor function after posteroventral pallidotomy for Parkinson's disease, NEUROLOGY, 51(6), 1998, pp. 1755-1757
We evaluated motor function in 41 consecutive PD patients undergoing unilat
eral MRI/microelectrode-guided posteroventral pallidotomy to determine whet
her the motor effects of levodopa therapy change after surgery. Total Unifi
ed Parkinson's Disease Rating Scale motor "off" and motor "on" subscores al
l improved and the rapidity of action, magnitude, and duration of motor res
ponse to levodopa therapy were all maintained after pallidotomy.