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[Treatment of infection in posterior tympani cavity during surgical procedures of otitis media].

OBJECTIVE
Analyse the effect of the treatment of infection in posterior tympani cavity in 168 cases with chronic otitis media.


METHOD
Infection was eliminated in posterior tympani cavity of all 168 cases after surgical procedures of otitis media, and 102 tympanoplasty with autoplastic bone were operated in all cases. 22 tympanoplasty were operated without mastoidectomy, 53 with transmastoid approach, 27 with mastoidectomy and tympanoplasty.


RESULT
All cases were followed up for more than one year. 160 cases were cured, the effective rate was 95% and no recurrence appeared except for 8 cases. The average threshold of hearing improvement of 87 cases > 15 dB, the effective rate was 85%.


CONCLUSION
To eliminate infection, the exploratory surgery of posterior tympani cavity should be done during surgical procedures of otitis media, for improving the effect of the treatment of otitis media.