Abstract:
Background: Sensoryneural Hearing Loss (SNHL) may result from drill generated
noise produced during middle ear surgeries. Though it is suggested by many it is not
properly documented.
Objective: This study was carried out to assess sensoryneural hearing loss following
middle ear surgeries.
Methods: 60 patients were studied and their bone conduction levels were recorded
pre-operatively and post-operatively on first, seventh and twenty-first days. The
presence or the absence of SNHL was determined by comparing between the two.
Results: Pre operative and post operative bone conduction levels were compared by
using paired-t test. The p values post operatively first day (p-0.484), seventh day (p
0.716), twenty-first day (p-0.665) were insignificant.
Interpretation and conclusion: In our study there was no sensorineural hearing loss
following middle ear surgeries. No significant correlation was found between duration
of discharge, type of surgery, duration of surgery and SNHL.
