慢性側頭骨炎に對する錐體手術100例の經驗

　従來，中耳炎，乳樣突起炎，錐體炎の3者は，別々の疾患として論ぜられていたが，Linck，西端，山下，小田，鳥居氏等によつて，かゝる考の誤れる事が次第に強調され，最近では，所謂中耳炎に際しては，全側頭骨が，程度の差こそあれ，殆ど同時におかされ，前記の3者は，それぞれ，同一疾患の一部分症であると考えられるに至り，又，仁保正次等は，その際に於ける骨病變を重要視して，側頭骨炎なる名稱を提唱している所である。

　他方，錐體部の病變については，Gradenigo以來，錐體尖端化膿症という病名の下に，急性炎或は，慢性炎の急性増悪に際しての，骨溶解，潴膿，或は，周圍諸羅官への波及（Gradenigo氏症候群，種々な眼症状等）等のみが注目されていたが，所謂慢性中耳炎に際しても，錐體部に慢性炎症が存在する事は，當然考えられる所であり，仁保（正），仁保（三），吉尾，西端氏等の病理組織學的報告も見られている。

MIYOJI NIHO reports the results of 100 cases of temporal bone infection, chronic otitis media, in which the treat rents consisted of exposing the cells of the petrous pyramid, to be as follows:(1) By age, the largest number upon whom the operation was performed were below 30 years; but, there were also children who were below 10 years of age (21%).

(2) By sex, 64 patients were males and 36 females.

(3) Depending upon the location of the lesion or involvement no single method of operation was sufficient to cope with the situation but often a combined methods that inter-grated those which were advanced by various authors were called upon far attaining the desired results. When patients life appears to be in no real danger as were those casesdestruction of inner ear should be avoided.

(4) Complete epithelization was attained in 96patiellts; continuous aural discharg was present in 2 patients; intermittant aural discharge in 2 patients.

(5) Fiftern patients were recipients of treat-ment with previous radical mastoidectomy; a complete healing was attained in the 14 among them (93%).

(6) The time consumed for complete epitheli-zation averaged 60 days.