Mariko Shida

Statistical study of ear surgery from 1977 to 1989.

Surgery, primarily tympanoplasty, was performed on 1051 ears from April 1977 to March 1989. Two-thirds of the patients were aged 30 to 60. There was no sex difference in any age group. Chronic otitis media was observed in 45.2% and cholesteatomatous otitis media in 33.7%. Including the ears that needed reoperation or secondary operation, 931 ears (88.6%) were operated on for problems related to chronic otitis media; tympanoplasty was performed in 885 of them. In the ears with chronic otitis media, operation was type I in 60.8% and modified type III in 16.5%. In ears with cholesteatomatous otitis media, operation was type Tin 30.7% and modified type III in 30.4%.Hearing was good in 86.9% after type I operation, in 77.2% after modified type III operation, and in 45.3% after modified type IV operation. No difference was observed in the columellae used other than the cartilage and auditory ossicles. Recurrence was observed frequently in the ears followed for a long time after posterior walll preserving operations for cholesteatomatous otitis media.

Caloric response of patients treated with streptomycin sulfate. (3rd Report). Relationship between caloric response and symptoms.

The relationship between caloric responses and symptoms was examined. Caloric tests were performed in 61 patients treated with streptomycin sulfate (SM). The patients were divided into 3 groups ; group I (12 patients) in which caloric responses were reduced unilaterally or bilaterally, and there were inner ear, mainly vestibular, symptoms ; group II (16 patients) with reduced caloric responses and no symptoms. Group III (33 patients) with no symptoms and normal caloric responses. The average age of group I patients was higher than that of group II patients. The total dose and the duration of SM therapy was less in group I than in group II. The average of each dose of SM was similar in the three groups.The results suggest that the caloric response is useful as a monitor for the prevention of SM ototoxicity. Vestibular symptoms were often found in older patients treated with SM and also in those who had received small amounts of SM.