DOI: http://dx.doi.org/10.18203/issn.2454-5929.ijohns20183699

Pattern of hearing loss in tubotympanic type of chronic suppurative otitis media

Vinay V. Rao, Shilpa M. J., Mahesh Bhat

Abstract


Background: The aim of the study was to assess the degree of hearing loss with the pattern of tympanic membrane perforation in tubotympanic type of chronic suppurative otitis media (CSOM TTD).

Methods: This is a descriptive study conducted at Father Muller Medical College, Department of Otorhinolaryngology from Oct 2016 till Feb 2017.110 cases aged between 20-50 years with CSOM TTD were included in the study. Detailed clinical examination and history was carried out followed by hearing evaluation by pure tone audiometry. All the data collected was statistically analyzed.  

Results: 110 patients with 137 perforated tympanic membrane, aged between 20 to 50 years, were included in the study. Large central perforation involving all the four quadrants was the most common otologic findings. Significant correlation observed between size of perforation and degree of hearing loss (p value- 0.018) and no significant relation is observed between site of perforation and degree of hearing loss (p=0.107).

Conclusions: The larger the perforation, the greater the decibel loss in sound perception. The location of perforation does not have significant effect on magnitude of hearing loss.


Keywords


Otitis media, Hearing loss

Full Text:

PDF

References


Islam MS, Islam MR, Bhuiyan MA, Rashid MS, Datta PG. Pattern and degree of hearing loss in chronic suppurative otitis media. Bangladesh J Otorhinolaryngol. 2010;16(2):96-105.

Berman S. Otitis media in developing countries. Pediatrics. 1995;96(1):126-31.

Bhusal CL, Guragain RP, Shrivastav RP. Size of tympanic membrane perforation and hearing loss.J Nepal Med Assoc. 2006;45(161).

Voss SE, Rosowski JJ, Merchant SN, Peake WT. Non-ossicular signal transmission in human middle ears: Experimental assessment of the “acoustic route” with perforated tympanic membranes. J Acoust Soc Am. 2007;122:2135-53.

Maharjan M, Kafle P, Bista M, Shrestha S, Toran KC. Observation of hearing loss in patients with chronic suppurative otitis media tubotympanic type. Kathmandu University Med J. 2009;7(4):397-401.

Mehta RP, Rosowske JJ, Voss SE, O’Neil E, Merchant SN. Determinants of hearing loss in perforations of the tympanic membrane. Otol Neurotol. 2006;27(2):136-43.

Oluwole M, Mills RP. Tympanic membrane perforations in children.International J Pediatric Otorhinolaryngol. 1996;36:117-23.

Ogisi FO, Adobamen P. Type I Tympanoplasty in Benin: A 10 year review. Nigerian Postgraduate Med J. 2004; 11:84-7.

Shamb Baugh GE. Surgery of the ear. Philadelphia: WB Saunder; 1959: 336-337.

Sinkkonen ST, Jero J, Aarnisalo AA. Tympanic membrane perforation. Duodecim. 2014;130(8):810-8.

Ahmad SW, Ramani GV. Hearing loss in tympanic membrane perforations. JLO. 1979;93:1091-8.

Sakagami M, Maeda A, Node M, Sone M, Mishiro Y. Long-term observation on hearing change in patients with chronic Otitis media. Auris Nasus Larynx. 2000;27(2):117-20.