Nappi G, Moglia A, Poloni M, Arrigo A
Eur Neurol. 1977;15(2):94-101. doi: 10.1159/000114795.
3 patients suffering from long-lasting "cryptogenetic" hemifacial spasm in association with dolichomegavertebrobasilar anomaly, are described. The angiographic examinations confirm the anomaly and put in evidence the patholphysiologic value of segment V4 of the vertebral artery at the same side of the spasm. Classical electromyographic examinations, and methods used to study the blink reflex, seem to rule out the hypothesis of a brain stem involvement as the only and sufficient pathologic mechanism. The peripheral pathogenesis is the most likely one.
本文描述了3例患有长期“隐源性”半面痉挛并伴有椎动脉基底动脉延长扩张异常的患者。血管造影检查证实了这种异常，并揭示了痉挛同侧椎动脉V4段的病理生理意义。经典的肌电图检查以及用于研究瞬目反射的方法，似乎排除了脑干受累是唯一且充分的病理机制这一假说。最有可能的发病机制是外周性的。
