Begh Raies Ahmad, Kishore Kamal, Kalsotra Gopika, Saraf Aditiya, Kalsotra Parmod
Department of ENT and Head and Neck Surgery, SMGS Hospital, Government Medical College, Jammu, 180 001 Jammu and Kashmir India.
Indian J Otolaryngol Head Neck Surg. 2022 Aug;74(Suppl 1):699-706. doi: 10.1007/s12070-021-02487-y. Epub 2021 Mar 17.
This paper aims to assess correlation of site, size and duration of tympanic membrane perforation with hearing loss using pure tone audiogram and surgical outcome in terms of above parameters. The present study was conducted on 100 patients in Department of ENT and HNS, SMGS Hospital, Government Medical College Jammu during a time period of November 2018 to October 2019. All the patients with age 15-60 years who presented with tympanic membrane (pars tensa) perforation were included in the study. According to the size of perforation, mean pure tone threshold in group I was 20.87 ± 3.86 dB, in group II was 26.45 ± 6.08 dB and in group III was 32.6 ± 5.56 dB. The difference in hearing threshold between all the three groups was significant statistically. In terms of site, group E had maximum hearing threshold (34.67 ± 4.20 dB), followed by group B (32.71 ± 5.88 dB). Group A had the lowest hearing threshold of 24.99 ± 6.21 dB. The difference between hearing thresholds of group B perforations and group A perforations was statistically significant ( < 0.05). However, the difference between group E and group B was insignificant. This study has shown significant correlation between the size and the site of the perforation to the degree of hearing loss. The bigger the perforation, the greater the hearing loss. The central perforations were associated with more hearing loss than posterior perforations, thus refuting the hypothesis that site and size of a tympanic membrane perforation does not affect the degree of conductive hearing loss. This study did not show any correlation between duration of disease and degree of hearing loss. Surgical and audiometric results obtained in this study can be accepted as satisfactory and as expected by the literature.
本文旨在通过纯音听力图评估鼓膜穿孔的部位、大小和持续时间与听力损失之间的相关性，并根据上述参数评估手术结果。本研究于2018年11月至2019年10月期间在查谟政府医学院SMGS医院耳鼻喉科和头颈外科对100例患者进行。所有年龄在15 - 60岁且出现鼓膜（紧张部）穿孔的患者均纳入本研究。根据穿孔大小，I组的平均纯音阈值为20.87±3.86dB，II组为26.45±6.08dB，III组为32.6±5.56dB。三组之间的听力阈值差异具有统计学意义。就穿孔部位而言，E组的听力阈值最高（34.67±4.20dB），其次是B组（32.71±5.88dB）。A组的听力阈值最低，为24.99±6.21dB。B组穿孔和A组穿孔的听力阈值差异具有统计学意义（<0.05）。然而，E组和B组之间的差异不显著。本研究表明穿孔的大小和部位与听力损失程度之间存在显著相关性。穿孔越大，听力损失越大。中央穿孔比后部穿孔导致的听力损失更多，从而反驳了鼓膜穿孔的部位和大小不影响传导性听力损失程度的假设。本研究未显示疾病持续时间与听力损失程度之间存在任何相关性。本研究获得的手术和听力测量结果可被认为是令人满意的，且与文献预期一致。
