Frueh B R, Preston R A, Musch D C
Department of Ophthalmology, University of Michigan Medical Center, W.K. Kellogg Eye Center, Ann Arbor 48105-1994.
Am J Ophthalmol. 1990 Oct 15;110(4):421-3. doi: 10.1016/s0002-9394(14)77025-4.
We studied evidence of facial nerve damage in patients with hemifacial spasm. Three types of evidence of nerve damage were analyzed: objectively measured weakness in eyelid protractor strength, clinically evident weakness of muscles innervated by the seventh nerve, and clinically evident aberrant seventh nerve regeneration. Of the 60 patients in the study, 54 (90%) had at least one of these features of seventh nerve damage. Objectively measured eyelid protractor weakness was noted in 27 of 58 patients (47%) who were tested. Clinically apparent weakness of at least one of four facial muscle groups was noted in 42 of 60 patients (70%). Aberrant seventh nerve regeneration was documented in 25 of 60 patients (42%). These findings indicate that facial nerve damage is common in patients with hemifacial spasm.
我们研究了面肌痉挛患者面神经损伤的证据。分析了三种神经损伤证据：客观测量的提上睑肌力量减弱、临床上明显的由第七神经支配的肌肉无力，以及临床上明显的第七神经异常再生。在该研究的60名患者中，54名（90%）具有这些第七神经损伤特征中的至少一种。在接受测试的58名患者中的27名（47%）中发现了客观测量的提上睑肌无力。在60名患者中的42名（70%）中发现了至少四个面部肌肉群中的一组出现临床上明显的无力。在60名患者中的25名（42%）中记录到了第七神经异常再生。这些发现表明面神经损伤在面肌痉挛患者中很常见。
