Miwa Hideto, Kondo Tomoyoshi, Mizuno Yoshikuni
Department of Neurology, Wakayama Medical University, Kimiidera, Wakayama, Japan.
J Neurol. 2002 Apr;249(4):452-4. doi: 10.1007/s004150200038.
We report two patients with blepharospasm that appeared during the recovery phase of Bell's palsy. It is well known that hemifacial spasm occasionally appears after Bell's palsy; however, blepharospasm associated with Bell's palsy has been rarely reported so far. Blepharospasm appeared within a month after the onset of Bell's palsy, suggesting that a certain causal relationship may be present between Bell's palsy and blepharospasm. We speculate that corneal irritation caused by lagophthalmos contributes to the induction of blepharospasm. Another speculation is that abnormal afferent input from the paralyzed side contributes to the abnormal sensitization of the blink reflex, thereby facilitating the induction of abnormal facial motor outputs such as blepharospasm.
我们报告了两名在贝尔麻痹恢复阶段出现眼睑痉挛的患者。众所周知，面瘫后偶尔会出现半面痉挛；然而，迄今为止，与贝尔麻痹相关的眼睑痉挛鲜有报道。眼睑痉挛在贝尔麻痹发病后一个月内出现，提示贝尔麻痹与眼睑痉挛之间可能存在某种因果关系。我们推测，睑裂闭合不全引起的角膜刺激有助于诱发眼睑痉挛。另一种推测是，来自麻痹侧的异常传入输入导致眨眼反射异常敏感，从而促使诱发异常的面部运动输出，如眼睑痉挛。
