ISSN: 2161-119X

Otolaryngology: Open Access
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  • Research Article   
  • Otolaryngol (Sunnyvale),
  • DOI: 10.4172/2161-119X.1000368

Prevalence of Congenital External Ear abnormalities among Deaf Pupils in Kaduna Metropolis, Kaduna-Nigeria

Abdullahi Musa Kirfi1*, Musa Thomas Samdi2, Abubakar Danjuma Salisu3 and Mohammed Bello Fufore4
1Department of Otorhinolaryngology, Abubakar Tafawa Balewa University, Teaching Hospital, Bauchi, Nigeria
2Department of Clinical Services, National Ear Care Centre, Kaduna, Nigeria
3Department of Otorhinolaryngology, Aminu Kano Teaching Hospital, Kano, Nigeria
4Department of Otorhinolaryngology, Federal Medical Center, Yola, Nigeria
*Corresponding Author : Abdullahi Musa Kirfi, Consultant, Department of Otorhinolaryngology, Abubakar Tafawa Balewa University, Teaching Hospital, Bauchi, Nigeria, Tel: +2348035302296, Email: abdulkirfi@yahoo.co.uk

Received Date: Mar 19, 2019 / Accepted Date: Apr 01, 2019 / Published Date: Apr 08, 2019

Abstract

Background: Approximately 5% of the general population have some sort of ear defect. There is limited knowledge on congenital external ear abnormalities among deaf pupils in Northern Nigeria and the country at large.

Patients and Methods: A cross-sectional study with a control population which assessed the prevalence of congenital external ear abnormalities among deaf pupils in Kaduna metropolis. Deaf pupils from two schools for the deaf were recruited for this study from November 2016 to August 2017. The pupils had screening audiometry done to ascertain their hearing thresholds. Data was collected using questionnaires in a multi-staged sampling fashion. The generated data was analysed using Statistical product and service solutions (SPSS) for windows version 20.

Results: A total of 430 subjects with equal number of controls participated in this study. The mean age for the subjects and controls were 13.48 ± 2.36 and 13.08 ± 1.81 respectively. The male:female ratio for the subjects was 1.29:1. Ninety three out of the 430 subjects had ear abnormality, giving a prevalence of 21.6%. The most common major anomaly in the subjects were external auditory canal atresia 3 (0.7%) and congenital absence of the tragus 3 (0.7%) while microtia 7 (1.6%) was the most common major abnormality in the controls. There was a slight preponderance of left sided abnormalities in both groups. Thirty four subjects (7.9%) had major abnormalities. The most common minor abnormality was pre-auricular sinus in 37 (8.6%) of 63 subjects, Overall, sixty two subjects (14.4%) had minor abnormalities, (p=0.001).

Conclusion: Prevalence of congenital external ear abnormality was higher among the deaf compared to the general population. Pre-auricular sinus was the most frequent congenital external ear abnormality among the participants and there was a slight left sided preponderance.

Keywords: External ear abnormalities; Congenital; Deaf pupils; Kaduna

Citation: Kirfi AM, Samdi MT, Salisu AD, Fufore MB (2019) Prevalence of Congenital External Ear abnormalities among Deaf Pupils in Kaduna Metropolis, Kaduna-Nigeria. Otolaryngol (Sunnyvale) 9: 367. Doi: 10.4172/2161-119X.1000368

Copyright: © 2019 Kirfi AM, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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