Evaluation of the Effect of Drilling on Hearing in Ear Surgery
Journal Title: Bengal Journal of Otolaryngology and Head Neck Surgery - Year 2014, Vol 22, Issue 2
Abstract
AimTo evaluate and assess the effect of micro drilling on sensorineural hearing loss in mastoid surgery in ipsilateral and/or contralateral ear and to find out the reasons for such a disaster. MethodsForty four patients of unilateral chronic otitis media with squamosal disease with conductive hearing loss requiring mastoid surgery were clinically examined and investigated for deafness in the pre-operative and postoperative period. This retrospective observational study was done from January 2013 to June 2014 at a tertiary care hospital in Kolkata. Pure tone audiometry and OAE were done in the pre-operative and post-operative period. Canal wall mastoidectomy was done in all the patients studied. Results were compared and analyzed to detect association between drilling during mastoid surgery and sensorineural deafness. ResultsPostoperatively one out of 44 patients developed ipsilateral sensorineural loss. The patient had developed post operative grade IV facial nerve palsy with bone conduction dip at 2000 and 4000 Hz. ConclusionPost operative sensorineural loss following Canal wall down mastoidectomy can occur due to noise and extreme heat generation, vibration of the temporal bone, inadvertent opening up of labyrinth or drilling on the intact ossicular chain etc.
Authors and Affiliations
Souvik Pal
Fractured Tracheostomy Tube - An Unusual Foreign Body in Tracheobronchial Tree
IntroductionApproximately 20% of patients with tracheostomy are discharged from hospital with the tracheostomy tube in situ. Proper long term care and management of such tracheostomy patients remains as a challenge to c...
Identifying Recurrent Laryngeal Nerve in Thyroid Surgery Using Relationship with Superior Parathyroid Gland and Tubercle of Zuckerkandl
Introduction: Recurrent laryngeal nerves (RLN) are particularly prone to injury during thyroid surgeries due to its intimate relationship and proximity with the gland. Zuckerkandl’s tubercle (ZT) helps in preserving RLN...
Near Complete Laryngopharyngeal Obstruction due to Vegetable Foreign Body in an Infant
Introduction Impaction of foreign bodies and obstruction in the upper aero-digestive tract is a medical emergency.Case Report A 5-month-old male infant presented with impacted large vegetable foreign body lying in the hy...
The Contralateral Ear in Unilateral Chronic Otitis Media - Does it Need Reckoning ?
Introduction This comparative study aims to analyze findings and their significance in the contralateral ears of patients with unilateral Chronic Otitis Media (COM) and compare it with a control group of healthy subje...
Congenital Midline Nasal Mass: Four Cases with Review of Literature
IntroductionCongenital midline nasal masses include nasal dermoids, gliomas, encephaloceles. Although rare, these disorders are clinically important because of their potential for connection to the central nervous system...