Department of Otorhinolaryngology-Head and Neck Surgery, Nobel Medical College Teaching Hospital, Biratnagar, Morang, Nepal.
Department of Internal Medicine, Nobel Medical College Teaching Hospital, Biratnagar, Morang, Nepal.
JNMA J Nepal Med Assoc. 2022 Mar 11;60(247):246-249. doi: 10.31729/jnma.7269.
Intact tympanic membrane acts as a partition between the external ear and middle ear. Tympanic membrane perforation is one of the commonest causes of conductive hearing loss. Perforation size is the most important determination of hearing loss. The aim of this study was to find out the prevalence of tympanic membrane perforation among patients presenting to the otorhinolaryngology department of a tertiary care hospital.
A descriptive cross-sectional study was carried out in the Department of Otorhinolaryngology and Head Neck Surgery of a tertiary care hospital from March 2021 to August 2021. Ethical approval was taken from Institutional Review Committee (Reference number: 57112021). Convenience sampling was done and data was collected from 414 patients presenting to the department. Collected data were entered, analyzed in Statistical Package for the Social Sciences version 21.0 and documented for study. Point estimate at 95% Confidence Interval was calculated along with frequency and percentage for binary data.
Among 414 patients, tympanic membrane perforation was seen in 100 (24.15%) (20.02-28.27 at 95% Confidence Interval). Among 100 patients with a total of 153 perforated eardrums, mild hearing loss was seen in the majority of the cases. Posterior perforation had a mean hearing loss of 40.41±5.96 dB, central had 39.09±3.13 dB, and anterior had 35.15±5.88 dB.
Our study showed the prevalence of tympanic membrane perforation to be high when compared to other similar studies. Hearing loss was observed in all cases; the majority with mild hearing loss. The degree of hearing loss was more in larger and posterior perforation.
eardrum perforation; hearing loss; otitis media.
完整的鼓膜将外耳和中耳隔开。鼓膜穿孔是传导性听力损失最常见的原因之一。穿孔大小是听力损失最重要的决定因素。本研究旨在了解三级医院耳鼻喉科就诊患者的鼓膜穿孔患病率。
2021 年 3 月至 2021 年 8 月，在一家三级医院的耳鼻喉科进行了一项描述性横断面研究。该研究获得了机构审查委员会的伦理批准（编号：57112021）。采用便利抽样法，从到该科室就诊的 414 名患者中收集数据。收集的数据输入 Statistical Package for the Social Sciences 版本 21.0 进行分析，并记录用于研究。在 95%置信区间内计算了点估计值，并对二项数据进行了频率和百分比的计算。
在 414 名患者中，发现 100 名（24.15%）（95%置信区间为 20.02-28.27）患者有鼓膜穿孔。在 100 名患者的总共 153 个穿孔鼓膜中，大多数患者出现轻度听力损失。后穿孔的平均听力损失为 40.41±5.96dB，中央穿孔为 39.09±3.13dB，前穿孔为 35.15±5.88dB。
与其他类似研究相比，我们的研究显示鼓膜穿孔的患病率较高。所有病例均观察到听力损失；大多数为轻度听力损失。较大和后穿孔的听力损失程度更高。
鼓膜穿孔；听力损失；中耳炎。
