The comparative analysis of the clinical and morphological picture of the various forms of chronic suppurative otitis media

Abstract

We present the results of the surgical treatment of 300 patients presenting with chronic suppurative otitis media. The changes in the mucous membrane of the tympanic cavity were revealed in 61% of the patients with mesotympanitis while spreading cholesteatoma occurred in 48% of the cases of «dry» perforations. The cholesteatomic process was documented in 64% of the patients with epitympanitis, the remaining patients presented with the pyo-carious process. The efficiency of the surgical intervention on the «dry» ear of the patients with the tubotympanic form of chronic suppurative otitis media (CSOM) amounted to 91.4% compared with 85% in the case of the altered mucous membrane of the tympanic cavity, 85.5% and 92.9% in the patients with the pyo-carious and cholesteatomic forms of the tympano-antral lesions, respectively. Residual cholesteatomas were found in 7.8% of the patients suffering from epitympanitis during the three year follow-up period. It is concluded that the results of clinical and morphological observations taken together with intraoperative findings give reason to consider mesotympanitis to be a prognosticallyunfavourable form of chronic suppurative otitis media.