To assess the efficacy of modality slow motion dynamic video endoscopy of eustachian tube in chronic middle ear pathologies.

Eustachian tube dysfunction (ETD) has a role in chronic otitis media (COM) is a well known fact and number of modalities have come up for its assessment-slow motion dynamic videoendoscopy (SMDV) being the latest. (i) To find prevalence of ETD in COM and (ii) to check the efficacy of SMDV in detecting dysfunction as compared to gold standard tympaometry (TYM). It's a prospective analytical study with total of 100 patients of chronic otitis media, hence 200 ears were tested for ETD by TYM and SMDV. Prevalence of ETD was noted as 35.5 % in COM whereas the two testing modalities TYM versus SMDV showed agreement in 161 cases out of the 200 ears giving a moderate agreement of statistical significance (Kappa test) suggesting SMDV to be included in standard of protocol when assessing ETD along with TYM.