Nasir Riaz, Atiq U Rehman, Ali Husnain Sheikh, Naveed Aslam, Irshad Malik, Babur Riaz.
Frequency of Sensorineural Hearing Loss in Chronic Suppurative Otitis Media.
Pak J Med Health Sci Jan ;12(4):1635-7.

Background: CSOM is incessant inflammation of mesotympanum, hypotympanum, epityppanum and mastoid cells , clinically presented with hearing loss and aural discharge. Deafness in adults and children has its own repurcussionson both in individuals and on surrounding community. Rural population is mostly effected by CSOM. It is one of the most common cause of deafness. Usually in CSOM the type of Deafness is conductive which may be due to the perforation of tympanic membrane, ossicular damage or fixation due to long term inflammation. Aim: To determination of frequency of SNHL in CSOM Study design: Cross-sectional study. Settings: ENT department Shaikh Zayed Hospital Lahore. Duration with date: From Nov 01, 2017 to May 22, 2018. Methods: The sample size of 180 was estimated by using 95% confidence leveland 5% margin of error with expected frequency of sensorineural hearing loss 13% 6 among cases with chronic suppurative otitis media. Results : The age range was 10 to 50 years for both male and female. The male patient were 114 (63.3%) and 66 (36.7%) patient were female. Out of these patients 137 (76.1%) have tubotympanic CSOM and 43 (23.95%) have atticoantral CSOM. 23 (12.8%) patients have sensorineural hearing loss and 157(87.2%) patients do not have sensorineural hearing loss. Out of 180 patients 99(55%) have moderate hearing loss on pure tone audiometry. Conclusions: It is concluded from the study that majority of patient with CSOM have tubotympanic type and while a less percentage of patients have atticoantral type. Males are effected more than males. The incidence of sensorineural hearing loss (12.8%) in CSOM is much lower than the conductive hearing loss.

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