NGHIÊN CỨU ĐẶC ĐIỂM LÂM SÀNG, CẬN LÂM SÀNG VÀ ĐÁNH GIÁ KẾT QUẢ PHẪU THUẬT NỘI SOI KHOÉT CHŨM TIỆT CĂN ĐIỀU TRỊ VIÊM XƯƠNG CHŨM MẠN TÍNH TẠI BỆNH VIỆN TRƯỜNG ĐẠI HỌC Y DƯỢC CẦN THƠ VÀ BỆNH VIỆN TAI MŨI HỌNG CẦN THƠ

Abstract

Background: Today, diseases of chronic mastoiditis become localized. It shows on sclerotic and diploic mastoids. The consequence of radical mastoidetomy is a large mastoid bowl, which prolongs time of postoperative dry ear. Endoscopic radical mastoidectomy surgery is ideal for sclerotic and diploic mastoid bone and ensures clean removal of diseases, shortens time of postoperative dry ear, and avoids damage to healthy structures.  Objectives: 1. Determine clinical features, CT scan of the temporal bone and audiometric studies in patients with chronic mastoiditis. 2. Evaluating the results of endoscopic mastoidectomy. Materials and methods: A prospective study with endoscopic mastoidectomy surgery on 53 ears with chronic mastoiditis. Results: clinical features (1) Otorrhea 96.2%, hearing loss 88.7%, tinnitus 67.9%, vertigo 5.6%, earache 32.1%. CT scan of the temporal bone: sclerotic (none pneumatised) mastoid bone 83%, diploic mastoid bone 17%; Pure tone audiogram: pure-tone average 64,8 ± 23,6dB, average ABGs 35.2 ± 15.5dB. After 3 months of surgery, otorrhea improved by 92.5% and tinnitus improved by 64.2%. Average time of postoperative dry ear: 7 ± 3.2 weeks. Conclusion: Chronic mastoiditis usually presents with ear discharge, hearing loss, tinnitus with sclerotic or diploic mastoid bone. Endoscopic mastoidectomy is not only minimally invasive but also highly effective.