小児真珠腫の手術所見と術後成績

抄録

Operative findings and surgical resuslts were studied in 34 children (36 ears) with middle ear cholesteatoma, including 24 ears with the attic type, 7 with the adhesive type and 5 with the posterior superiorquadrant type. The open method was performed in47%(17ears) of the ears and the closed method in 53%(19ears). The planned staged tympanoplasty was completed in only 2 ears. Cholesteatoma recurredmore frequently in the closed method group than in the open method group (42% vs. 11%). Otherpostoperative complications (such as erosion of the mastoid cavity, otorrhea, perforation of the ear drum) occurred more often in the open method group than the closed method group. However, a postoperativeretraction pocket formed, causing recurrent cholesteatoma after several years in a patient in the closedmethod group. The rate of postoperative hearing improvement was 60% in both groups. Recent surgicalmethods in the literature are also discussed.