小児の壊死性外耳炎の1例

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A 6 year-old child came to our clinic with complaints of necrosis of the right external auditory canal and obstruction of the left. The patient had had a bilateral otorrhea and hearing loss from the age of 4. In spite of intensive treatment the otorrhea had never disappeared and necrosis of the both ear canals had developed. The left ear canal was soon closed by granulation, but necrosis of the right had progressed to the surrounding tissue and the entire cartilaginous part had been absorbed.Repeated bacteriological examination showed staphylococcus aureus. General examination revealed no abnormality.Extensive surgical debridement of infected tissue was carried out on both ears and an effective antibiotic (Cephalosporin) was prescribed. The postoperative course was favorable and healthy granulation appeared on both sides. To prevent closure of the canals, silastic tubes were left in place. However in the left ear, the growth of the granulation was so rapid that the wound closed immediately after the operation.
耳鼻咽喉科臨床学会の論文