305 The Journal of Medical Research 2020; 6(6): 305-308 Research Article JMR 2020; 6(6): 305-308 November- December ISSN: 2395-7565 © 2020, All rights reserved www.medicinearticle.com Received: 24-11-2020 Accepted: 31-12-2020 *Corresponding author: Dr. Harsh Lokhna Junior Resident, Department of ENT, Subharti Medical College, Swami Vivekanand Subharti University, Meerut- 250005, Uttar Pradesh, india Email: 0or1phd[at]gmail.com To assess the hearing improvement in patients of Chronic Otitis Media Tubotympanic type post tympanoplasty Harsh Lokhna 1 , Sanjay Kumar 2 , Anshul Bansal 3 1 Junior Resident, Department of ENT, Subharti Medical College, Swami Vivekanand Subharti University, Meerut- 250005, Uttar Pradesh, india 2 Professor and Head, Department of ENT, Subharti Medical College, Swami Vivekanand Subharti University, Meerut- 250005, Uttar Pradesh, india 3 Professor, Department of ENT, Subharti Medical College, Swami Vivekanand Subharti University, Meerut- 250005, Uttar Pradesh, india Abstract 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 pre- operative mean AB Gap. Keywords: COM, Tympanoplasty, Tympanic Membrane, AB Gap. INTRODUCTION Introduction: Chronic otitis media (COM), a common condition in otorhinolaryngology, it is characterized by an inflammatory process of the mucoperiosteal lining of the middle ear space and mastoid, characterized by chronic, intermittent, or persistent discharge through a perforated tympanic membrane [1] . The incidence of chronic otitis media (tubotympanic type) is high in developing countries because of lower socioeconomic standards, poor nutrition and lack of health education [2] . It is a major cause of deafness in India. There are two types of Chronic Suppurative Otitis Media i.e. Tubotympanic (safe or mucosal) and B) Atticoantral Type (Unsafe or squamosal) [3] . Chronic Tubotympanic Suppurative otitis media can be managed in two ways, conservative and surgical management. The aim of middle ear surgery is reduction in the patient’s hearing disability, not just closure of the air bone gap. Small perforations usually heal spontaneously but surgery is required when the edges of the perforation are covered by stratified squamous epithelium, a perforation becomes permanent and does not heal spontaneously [4] . Tympanoplasty is the surgical operation consists of both eradication of middle ear disease and reconstruction of hearing mechanism including tympanic membrane and ossicles [5] . Type-1 tympanoplasty is performed when there is tympanic membrane perforation without any ossicular damage [6] . Tympanoplasty with or without mastoidectomy is indicated for chronic ear disease process such as tympanic membrane perforation resulting from previous middle ear infections, atelectasis of tympanic membrane, retraction pocket, cholesteatoma, tympanosclerosis, and mastoid granuloma [7] . This is a Prospective and observational study which is focused on Tympanoplasty and reconstruction of the tympanic membrane. The study focused on reconstruction of tympanic membrane and inspection of ossicular apparatus by tympanoplasty alone or tympanoplasty with mastoid surgeries. The aim of the present study was to determine hearing improvement in type- 1 tympanoplasty by comparing mean