NGHIÊN CỨU ÁP LỰC MỞ VÒI NHĨ Ở TRẺ VIÊM TAI GIỮA MẠN KHÔNG NGUY HIỂM TRƯỚC VÀ SAU NẠO V.A

Abstract

Objectives: To study the clinical characteristics and assess changes in Eustachian tube opening pressure in children with chronic otitis media without cholesteatoma before and after adenoidectomy. Subjects and Methods: A descriptive case series study involving 20 ears of 20 children diagnosed with chronic adenoid hypertrophy associated with chronic otitis media without cholesteatoma, had adenoidectomy from July 2023 to September 2024. Results: Intermittent ear and nasal discharge was observed in all 20 patients, with hearing loss in 17/20 ears. Tympanic membrane perforations were small in 5 ears, medium-sized in 13 ears, and large in 2 ears. Adenoid hypertrophy was grade II in 9/20 patients and grade III in 11/20 patients. Before adenoidectomy, the mean Eustachian tube opening pressure was 344.10±44.53 daPa, with pressures ≥300 daPa in 16/20 ears. One month after adenoidectomy, the mean pressure decreased to 276,45±56,99, and pressures ≥300 daPa were only observed in 5/20 ears, including 4 patients aged ≥11 years. Among the 4/20 patients with preoperative Eustachian tube opening pressures ranging from 100 to <300 daPa, the pressures remained within the normal range postoperatively. Conclusion: In this study, children with chronic adenoid hypertrophy and chronic otitis media without cholesteatoma of ≤5 years duration, tympanic membrane perforations were typically small to medium in size, associated with mild conductive hearing loss. One month after adenoidectomy, there was an improvement in Eustachian tube opening pressure and a significant reduction in the rate of mechanical Eustachian tube obstruction.