CORRELATION BETWEEN TYMPANIC MEMBRANE PERFORATION AND HEARING LOSS
Journal Title: Journal of Special Education and Rehabilitation - Year 2016, Vol 17, Issue 1
Abstract
Introduction: Perforation of the tympanic membrane primarily results from middle ear infections, trauma or iatrogenic causes. The perforation causes conductive hearing loss by reducing the surface area available for sound transmission to the ossicular chain. Objective: The objective was to analyze the characteristics of tympanic membrane perforations in relation to hearing loss and to determine the type and degree of hearing loss. Materials and methods: We analyzed audiometric, otoscopic findings and medical reports of 218 patients, 114 males (52.3%) and 104 females (47.7%), aged 9 to 75 years (mean age of 47.9 years), examined during the period of November 2012 to October 2015. For statistical data analysis we used Chi-square test with level of significance p<0.05. Results: Most of the patients had unilateral perforations (89%) with right ear predominance and involvement of two quadrants of pars tensa (37.2%). Mean air-bone gap was 23.9 dB. The largest air-bone gap was at frequency of 250 Hz. Most of the patients (73.1%) had mixed hearing loss (p=0.032), and average hearing thresholds from 21 to 40 dB. Conclusion: Mean air-bone gap is largest at the lower frequencies, and decreases as frequency increases. Size of the perforation has effect on hearing loss. Mean air-bone gap increases with increasing size of the perforation. There is no big difference between the mean air-bone gap in posterior versus anterior perforations.
Authors and Affiliations
Lidija RISTOVSKA| City General Hospital “8 September”, Department of Otorhinolaryngology, Division of Audiology, Skopje, Republic of Macedonia, Zora JACHOVA| University “Ss Cyril and Methodius”, Faculty of Philosophy, Institute of Special Education and Rehabilitation, Skopje, Republic of Macedonia, Rade FILIPOVSKI| City General Hospital “8 September”, Department of Otorhinolaryngology, Division of Audiology, Skopje, Republic of Macedonia, Nikica ATANASOVA| City General Hospital “8 September”, Department of Otorhinolaryngology, Division of Audiology, Skopje, Republic of Macedonia
Keywords
Related Articles
- EP ID EP7983
- DOI -
- Views 443
- Downloads 35
THE INFLUENCE OF THE ETIOLOGICAL FACTORS ON THE LEVELS OF THE HEARING DAMAGES
In this article, the author tray to make the causal links between the etiology and hearing damages. Therefore the research is connected with the prenatal, parental and postnatal etiological factors and their influence on...
POSTGRADUATE STUDIES AT THE INSTITUTE OF SPECIAL EDUCATION AND REHABILITATION
postgraduate studies,This paper considers the issue of the study program intended for postgraduate students at the Institute of Special Education and Rehabilitation and the realization of the provisions of the Bologna...
EARLY DETECTION OF HANDICAPS OF PERSONS WITH TRISOMIA OF 21 CHROMOSOME IN THE CYTOGENETIC LABORATORY IN THE CENTER FOR MENTAL HEALTH FOR CHILDREN AND ADOLESCENTS IN SKOPJE
Factors which contribute the appearance of handicaps are numerous and complex. By their nature they are inherited or determined by factors of outer environment, mostly as a result of interaction of both. In the broad sen...
ATTITUDES OF HEALTHY CHILDREN PARENTS TOWARDS HANDICAPPED CHILDREN AT THE PRE-SCHOOL AGE
Since the 1970-ies, in the USA and Western and Eastern Europe, the model of segregated education has been abandoned, and nowadays the handicapped children attend regular schools all together with other healthy pupils. T...
SOME ASPECTS OF THE PROFESSIONAL AND COMMUNITY STATUS IN THE NEWEST TRANSITIONAL-ECONOMICAL SITUATION
Professional as well as the community status of the defectologie is determinate by many factors. In this article are given thirty of them that in these transitional circumstances have negative outcome to the entire statu...