Keywords : Air bone gap
European Journal of Molecular & Clinical Medicine,
2022, Volume 9, Issue 4, Pages 123-134
Introduction :Chronic suppurative otitis media (CSOM)is a middle ear disease with permanent abnormality of pars tensa or pars flacida resulting in discharge and hearing loss. Hearing loss is mostly conductive in nature.Pure tone audiometry is a subjective measurement of hearing threshold level. It is done preoperatively to know the degree and type of hearing loss and postoperatively to measure the audiological gain.
Objective:to assess hearing status of patients after myringoplasty using pure tone audiometer.
Methods:The study was done on 100 patients suffering from CSOM active mucosal type. Patient parameters including age, size and site of the perforation were evaluated. Hearing levels were assessed as the mean air conduction (AC), and air-bone gap (ABG) at 500, 1000, and 2000 Hz, and their relation with aforementioned parameters were analyzed.Myringoplasty was performed and then patients were followed up for three months and on each visit hearing status was assessed by Pure Tone Audiometry.
Results:At the end of the study it was found that mostofthe patients were in younger age group 15-25 years(60%).The commonest site was central perforation (88%) with large size perforation being (51%). The pre and post operativeaudiological difference found to be significant with average audiological gain more than 10dB and overall hearing improvement was 86% at 1 month and 93% at the end of 2 and 3 month.
Conclusions:There was a significant audiological improvement following myringoplastywith postauricular route using temporalis fascia graft via underlay technique in patients of mucosal type of chronic suppurative otitis media.However no significant difference was found in the audiological gain when compared to different age,site and size of perforation.