Comparison of Pure Tone Audiograms before and after Stapedotomy for Otosclerosis in a Tertiary Care Hospital

Objective: To study the mean improvement in Air-Bone gap after stapedotomy. Study Design: Quasi Experimental study Place and Duration of Study: Combined Military Hospital, Lahore and Rawalpindi Pakistan, from Jul 2020 to Jul 2021. Methodology: A total of 33 patients having diagnosis of otosclerosis undergoing stapedotomy in age range 15 to 40 years of either gender was included. Patients with revision stapedotomy, Air -Bone gap less than 10dB, only hearing ear and chronic ear disease were excluded. All stapedotomies were performed under general anesthesia. Pure Tone Audiometry and Tympanometry were performed in all cases shortly before surgery and six weeks postoperatively. Results: In this study range of age was from 15-40 years with the mean age of 29.91±5.25 years. Out of these 33 patients, 11(33.33%) were male and 22(66.67%) were female with male to female ratio of 1:2. Most female patients 17(51.52%) were between 31-40 years of age. In my study, Air-Bone gap preoperatively was 42.15±3.88 and Air-Bone gap postoperatively was 20.0±2.95 with p-value of 0.0001. Conclusion: This study concluded that patients who underwent stapedotomy showed improvement in post-operative mean Air-Bone gap.