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Assessment of motor function after stereotactic pallidotomy
W G Ondo1, J Jankovic, E C Lai
1Department of Neurology, Baylor College of Medicine, Houston, TX, USA.
Neurology
|January 27, 1998
Summary
Stereotactic pallidotomy effectively treats advanced Parkinson's disease symptoms, significantly improving motor function, tremor, and bradykinesia. This surgical intervention offers bilateral benefits for patients with Parkinson's disease.
Area of Science:
- Neurosurgery
- Neurology
- Movement Disorders
Background:
- Stereotactic pallidotomy is increasingly utilized for advanced Parkinson's disease (PD) despite limited controlled data.
- The procedure involves unilateral stereotactic lesioning of the globus pallidus internus.
Purpose of the Study:
- To evaluate the efficacy of stereotactic pallidotomy on cardinal Parkinson's disease features.
- Assess improvements in rigidity, tremor, bradykinesia, and postural instability.
Main Methods:
- Blind rating of randomized patient videos (n=34) before and 3 months after surgery.
- Videos recorded in the "off" medication state.
- Utilized Unified Parkinson's Disease Rating Scale (UPDRS) motor scores.
Main Results:
- Overall UPDRS motor scores improved by 13.6% (p < 0.001).
- Significant improvements noted in contralateral tremor, gait, and arising from a chair (p < 0.001).
- Improvements also observed in ipsilateral tremor, dexterity, and body bradykinesia.
Conclusions:
- Stereotactic pallidotomy is a safe and effective treatment for parkinsonian symptoms.
- The procedure demonstrates bilateral benefits for many Parkinson's disease symptoms.