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在闭合性头伤中,面神经是最常受累的运动性颅神经。文献报导,头伤后迟发性而神经麻痹的发病率为0.6～2.2％。有作者注意到,伤时即刻发生的面神经麻痹难于发现,这使它可能被误认为迟发性者。作者从临床和籍电诊断方法详尽研究了这种病例,并试行解释其发病机理。头伤患者6304例,均有脑震荡。全部有外耳道流血(出血来自中耳、内耳)的闭合性头伤患者,都自受伤后起每日研究,直至发生迟发性面神经麻痹。凡电诊断检查异常而无临床明显麻痹者定为亚临床或隐性麻痹。全部病例作了随访观察。
In closed head injuries, the facial nerve is the most commonly affected motor cranial nerve. Reported in the literature, delayed head injury and paralysis of the incidence of 0.6 to 2.2%. Some authors note that paralysis of the facial nerve, which occurs immediately after injury, is difficult to find, making it likely to be mistaken for late-onset. The authors exhaustively studied this case from both clinical and medical diagnosis methods and explained its pathogenesis on a pilot basis. 6304 cases of head injury, have concussion. All closed head injuries with external auditory canal bleeding (bleeding from the middle ear, inner ear) were studied daily from injury until delayed facial paralysis occurred. Where the diagnostic abnormalities without clinical obvious paralysis as subclinical or subclinical paralysis. All cases were followed up.