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分析31例中耳术后迟发性面瘫。认为其发病机理是由于术中直接刺激而神经,局部异常供血血管突然丧失,使原已受病变影响的面神经进一步损伤;或可能出于由于局部血管痉挛,碘仿刺激造成面神经水肿;或手术时使面神经内出血使其功能障碍所致。没有发现中耳术中牵拉鼓索神经及术后中耳感染与迟发性面瘫有直接因果关系的证据。本病预后良好,积极治疗可加速面神经恢复及防止其恢复不全。术后早期(4天内)发生者其恢复期较晚期发生者长。
31 cases of delayed facial paralysis after middle ear surgery. That the pathogenesis is due to intraoperative direct stimulation and nerve, local sudden abnormal blood supply to the vessel, the original has been affected by the lesions of the facial nerve to further damage; or may be due to local vasospasm, iodoform stimulation caused by facial nerve edema; or surgery The facial nerve bleeding caused by dysfunction. There was no evidence of a direct causal relationship between the trabeculectomy in middle ear surgery and postoperative middle ear infections and delayed facial paralysis. The prognosis of this disease is good, aggressive treatment can speed up facial nerve recovery and prevent its recovery incomplete. Early postoperative (4 days) occurred in those patients whose recovery period occurred later than others.