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A Novel Approach to Assess Motor Outcome of Deep Brain Stimulation Effects in the Hemiparkinsonian Rat: Staircase and Cylinder Test
Published on: May 31, 2016
[Predictive clinical factors of response to subthalamic nucleus stimulation in Parkinson's disease]
P J Garcia1, J Muñiz de Igneson, J Ayerbe
1Servicio de Neurología, Fundación Jiménez Díaz, Madrid, Spain. pgarcia@fjd.es
Introduction:
Subthalamic nucleus stimulation (SNE) is currently a reasonable treatment for patients with advanced Parkinson's disease (PD). Predictive factors for effective SNE have not yet been identified with precision. We have prospectively evaluated response to SNE in a series of patients with advanced PD to study the factors that influence clinical improvement after functional surgery.
Methods:
We prospectively studied 20 patients with advanced PD (age: 59 +/-6.1; stage: 3.0+/-0.8) candidates for SNE. We studied these patients preoperatively and 6 months postoperatively according to Core Assessment Program for Intracerebral Transplantation (CAPIT) protocol including timed tests.
Conclusions:
We found a negative correlation between age and Unified Parkinson Disease Rating Scale (UPDRS) improvement; however, age did not correlate with timed tests improvement. In addition, preoperative severity (UPDRS and Hoehn-Yahr) did not correlate with UPDRS and timed tests improvement. In summary, age is a negative predictor for effective SNE.
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