電撃後発症した顔面神経麻痺ならびに混合性難聴
1979 年 72 巻 8 号 p. 999-1006
詳細
1979 年 72 巻 8 号 p. 999-1006
A girl, aged 8, pushed a pair of tweezers into a plug receptacle with her right hand, and received an electric shock. She was treated by general practitioners, and was referred to us on the 22nd day after the injury.
Examinations showed a central perforation of the right eardrum, a right peripheral facial palsy, a right mixed hearing loss, a recruitment phenomenon etc.
After conservative treatment, decompression surgery of the facial nerve was performed on the 79th day after the electric shock. The patient recovered from facial palsy about 150 days after the surgery, and her hearing was improved markedly.
The causal relation between the electric shock and the abnormal findings such as the perforation of the eardrum, the internal ear disorder, and the facial palsy was considered. It was concluded that the eardrum split was caused by a mechanical shock to the temporal bone which did in fact show a minor fracture line, and the hearing loss resulted from an inner ear disturbance due to temporal contusion. The facial palsy was apparently due to either temporal mechanical shock or stress, such as is seen in cases of Bell's palsy.
