DOI: http://dx.doi.org/10.18203/issn.2454-5929.ijohns20213280

Study on impact of duration of tympanic membrane perforation on hearing loss and audiological outcome after surgery

Raies Ahmad, Gopika Kalsotra, Kamal Kishore, Aditiya Saraf, Parmod Kalsotra

Abstract


Background: The aim of the study was to assess impact of duration of tympanic membrane perforation on hearing loss and postoperative audiological outcome using pure tone audiogram.

Methods: 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 to 60 years who presented with tympanic membrane (pars tensa) perforation were included in the study.  

Results: In our study, mean preoperative hearing loss (AC threshold) of group A was 36.23±1.07 dB and of group B was 25.67±6.38 dB. Group C had mean preoperative hearing loss (AC threshold) of 28.78±6.50 dB. Mean preoperative air-bone gap (AB gap) of group A was 12.9±8.05dB and of group B was 13.86±4.19 dB. Group C had mean preoperative air-bone gap (AB gap) of 16.47±5.51 dB. Postoperatively, pure tone threshold at three months was least in group B (15.09±5.80 dB), followed by group C (15.68±4.66 dB) and group A (19.33±2.81 dB). Whereas, postoperative AB gap at 3 months was least in group C (10±3 dB), followed by group C (8.44±3.59 dB). Group B had maximum postoperative AB gap of 8.49±4.34 dB.

Conclusions: This study did not show any correlation between duration of disease and degree of hearing loss.


Keywords


Chronic otitis media, Duration of tympanic membrane perforation, Hearing loss

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References


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