ĐÁNH GIÁ THÍNH LỰC TRƯỚC VÀ SAU PHẪU THUẬT TIỆT CĂN XƯƠNG CHŨM CÓ CHỈNH HÌNH TAI GIỮA TYPE IV

Abstract

Objective: Is radical mastoidectomy with type IV tympanoplasty of Wullstein classification effective in preserving hearing? Research method: A descriptive case series with convenience sampling. Study subjects: 27 ears affected by cholesteatoma otitis media underwent radical mastoidectomy combined with type IV tympanoplasty were followed up for at least 6 months postoperatively. Results: The mean age was 42.3±14.7 years, the mean postoperative follow-up time was 22.7 months (ranging from 6 to 87 months). After surgery, there were 14 cases of conductive hearing loss and 15 cases of mixed hearing loss, with no cases of sensorineural hearing loss; compared to preoperative results, while conductive hearing loss increased by 2 cases and mixed hearing loss decreased by 2 cases. The bone hearing threshold, ABG and PTA after surgery were nearly unchanged compared to preoperative values, recorded at 17.3±8.5 dB; 31.1±11.0 dB and 48.7±14.7 dB, respectively. Conclusion: Although, ossiculoplasty was not performed, type IV tympanoplasty of Wullstein on radical mastoidectomy still produced satisfactory hearing outcomes.