To assess the hearing improvement in patients of Chronic Otitis Media Tubotympanic type post tympanoplasty

Aim: To determine hearing improvement in type- 1 tympanoplasty by comparing mean preoperative air bone gap with mean postoperative AB gap. Material and method: Patients clinically diagnosed as 75 cases of Chronic Suppurative Otitis Media Tubotympanic Type Disease presenting to the ENT OPD of Chhatrapati Shivaji Hospital attached to Subharti Medical College, Meerut were taken up for study. Detailed clinical examination and history was taken. Pure tone audiometry was conducted, hearing loss and mean AB Gap was noted pre-operatively. X-Ray mastoid B/L Schuller’s view was done and findings were noted. Tympanoplasty type 1 with or without mastoidectomy was performed. Cortical mastoidectomy with type 1 Tympanoplasty was performed in patients having granulations & polypoidal middle ear mucosa along with sclerotic mastoid. All these patients were followed up post-operatively at 6 weeks. The status of graft uptake was noted. Pure tone audiometry was performed. Hearing loss and mean AB Gap results were compared with pre-operative findings. Results: In our study out of 75 patients, 33 (44%) patients were affected with Right ear and 42 (56%) patients were affected with Left ear. Hearing loss was the chief complaint in all 75 patients (100%) followed by blocking sensation. Post operatively 58 (77.33%) patients had normal hearing followed by 16 (21.33) patients who had mild hearing loss. Only 1 (1.33%) patient had moderately severe hearing loss. Pre-operatively, mean AB Gap was 46.62+/-7.89dB while post-operatively mean AB Gap was 23.43+/-5.52dB with statistically significant difference as p<0.05. Conclusion: In our study, the post-operative Mean AB Gap was improved significantly as compared to preoperative mean AB Gap.