Abstract
This study was done to evaluate the incidence of otitis media with effusion (OME) in cases of head and neck malignancies who undergo irradiation, excluding nasopharyngeal malignancies. This prospective observational study was done at a tertiary care hospital. Adult patients of head and neck malignancies treated with radiotherapy (RT) with or without concurrent chemotherapy as definitive or adjuvant therapy from September 2017 to August 2018 were included. Cases of nasopharyngeal malignancies and cases of malignancies of other sites extending to nasopharynx causing mechanical obstruction to ET were excluded. The otoscopy, tympanometry and pure tone audiometry findings of these patients were recorded pre RT, immediately after completion of RT and at 6months post RT. The pre and post RT data were analysed to determine the incidence of OME. 39.3% of ears had retracted tympanic membrane (TM) and 7.1% had air-fluid levels in middle ear at first follow up (FFU). At second follow up (SFU), 13% of ears continued to have retracted TM while none had air-fluid levels. At FFU, 23.2% of ears had 'B' curve on tympanometry, indicative of OME while 19.6% of ears had 'C' curve, indicative of Eustachian tube (ET) dysfunction. At SFU, 1.8% had B curve while 14.3% had C curve, indicating improvement in ET function as compared to that at FFU. There is a considerable percentage of non-nasopharyngeal head and neck malignancy cases who develop OME post RT, however, in most of them it resolves spontaneously.
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More From: Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India
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