Anagnostou E, Sporer B, Steude U, Kempermann U, Büttner U, Bötzel K
Department of Neurology, Ludwig-Maximilians University, Munich, Germany.
Neurology. 2001 May 22;56(10):1396-9. doi: 10.1212/wnl.56.10.1396.
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.
临床体征有助于在帕金森病(PD)慢性高频苍白球刺激的立体定向植入过程中确定电极的正确位置。作者描述了一名患者,在苍白球手术期间刺激引起明显、持续的对侧眼偏斜。其潜在机制可能是通过容积传导电流扩散对内囊纤维的刺激。因此,这种共轭性眼偏斜不一定表明电极放置不正确。