Related Experiment Videos
Contraversive eye deviation during deep brain stimulation of the globus pallidus internus
E Anagnostou1, B Sporer, U Steude
1Department of Neurology, Ludwig-Maximilians University, Munich, Germany.
Neurology
|May 29, 2001
Abstract:
Clinical signs help determine correct electrode positioning during stereotactic implantation for chronic high-frequency pallidal stimulation in Parkinson's diease (PD). The authors describe a patient who had marked, sustained, contraversive eye deviation caused by stimulation during pallidal surgery. The underlying mechanism is probably an excitation of fibers in the internal capsule by volume-conducted current spread. Such conjugate eye deviation is thus not necessarily an indication of incorrect electrode placement.