Interlay Tympanoplasty: Outcome in Central Tympanic Membrane Perforation

By June 7, 2019

Baruah, Rohan Malla1
1 MS ENT, Dr.N.M.B.Baruah Nursing Home, Assam, India.

Chronic otitis media is an inflammatory process of the mucoperiosteal lining of  the middle earspace and mastoid. The main aim of surgery of chronic ear disease is to eliminate disease process from middle ear space and to give the patient a dry safe and functioning ear. Interlay tympanoplasty a newer technique has shown promising results with higher success rates than other conventional methods of myringoplasty. We aimed to study the hearing gain in terms of air bone gap and outcome of graft uptake.

Materials & Methods:
This is a prospective study of 24 months duration from June 2016 to June 2018 carriedout in 100 patients of chronic suppurative otitis media (CSOM) with central perforation at DR.N.M.B.Baruah Nursing Home , Nalbari, Assam . All patients underwent through interlay tympanoplasty  after clinical examinations , audiometric tests & routine investigations. Patients were called for regular follow up for 20 weeks.

Pre operatively mean air bone gap was 30±2  dB. Post operatively after 20 weeks mean air bonegap was 12.5±3.5. On last follow up at 20 weeks, maximum numbers of graft rejections were observed in 7 patients .

Tympanoplasty  is a safe and effective technique to improve the quality of life of patients. The interlay technique had a better graft take up and hearing improvement and also showed promising results interms of limited follow up period and limited number of cases involved.