Postoperative observations following tympanoplasty.

概要

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Postoperative observations were reported after tympanoplasty of 478 patients during last 5 years and 9 months. Changes in hearing level, incidence of re-perforation of the tympanic membrane, presence of ear drainage, and development of cholesteatoma were the main items investigated.Hearing level reached a certain level about one year after tympanoplasty and maintained that level afterwards. The incidence of permanent re-perforation was .5% and that of ear drainage was 2.5%. The development of cholesteatoma was observed 28 patients, 17.2% of all cholesteatoma cases (163 cases). The recurrence of cholesteatoma was usually diagnosed one to three years after tympanoplasty under operation microscope. Therefore, postoperative observation should be carried out for at least three years after surgery. In our clinic, however, more than 10% of the patients who received tympanoplasty did not return for examination three years after surgery. It is important to strive to increase the postoperative observation rate to 100% after tympanoplasty.
耳鼻咽喉科臨床学会の論文