INFLUENCE OF FUNCTIONAL ENDOSCOPIC SINUS SURGERY ON MIDDLE EAR MUCOSA IN PATIENTS WITH BOTH SINUSITIS AND CHRONIC SUPPURATIVE OTITIS MEDIA.

Chronic suppurative otitis media (CSOM) is middle ear infection with ear discharge of more than 3 months and permanent tympanic membrane perforation. Among many etiologies, Sinusitis is the most important etiology for Chronic suppurative otitis media patients as it alters Eustachian tube function. Two main routes of mucociliary transport have been identified in the lateral nasal wall. The first route drains secretions from the frontal and maxillary sinuses with the anterior ethmoidal complex. The secretions now travel both anteriorly and inferiorly to the aperture of the eustachian tube. The second pathway involves the transportation of secretions from the sphenoid sinus and posterior ethmoid cells to the nasopharynx, both superiorly and posteriorly, via the Eustachian tube aperture. The kind of discharge changes when the paranasal sinuses are diseased. Purulent or extremely viscous secretions leak around the eustachian tube aperture in chronic sinusitis. This could have serious effects on the Eustachian tube's ability to operate normally. Nasopharyngeal pathology are excluded in this study.Middle ear mucosal status improved after performing Functional Endoscopic Sinus Surgery. Thus Sinusitis contributes to infection in mucosal type of CSOM.