The influence of high frequency hearing loss on the distortion product otoacoustic emissions in tinnitus subjects with normal hearing threshold (0,25-8 kHz)
Journal Title: Otolaryngologia Polska - Year 2012, Vol 66, Issue 5
Abstract
Aim of the study: To evaluate the influence of high frequency hearing loss (>8000 Hz) on distortion product otoacoustic emissions registered in the frequency range from 0,5 to 8 kHz. Matherial and methods: 280 ears with tinnitus and normal hearing (0.25-8 kHz) divided into 3 groups depending on the degree of high frequency hearing loss: group A -hearing threshold up to 20 dB for 10, 12.5, 14 and 16 kHz (68 ears); group B - hearing threshold 25-40 dB HLfor at least one of four EHfs (93 ears); group C - hearing threshold above 40 dB HL for at least one of four EHFs (119 ears). For each group mean audiogram and DP-gram were obtained and statistical analysis was used for comparison across these groups. Results: Mean DPOAE values in group C were significantly lower in comparison with group A for the frequency range 2-8 kHz, and in comparison with group B were significantly lower for the frequency range 4-8 kHz. Conclusions: High frequency hearing loss (above 8 kHz) has a relevant influence on distortion product otoacoustic emissions registered at frequencies below 8 kHz in tinnitus patients. The greater is hearing loss above 8 kHz, the lower is DPOAE value below 8 kHz.
Authors and Affiliations
Anna Fabijańska, Jacek Smurzyński, Krzysztof Kochanek, Grażyna Bartnik, Danuta Raj-Koziak, Henryk Skarżyński
Keywords
Related Articles
- EP ID EP52086
- DOI -
- Views 102
- Downloads 0
Czy leczenie ozonem (O3) jest skuteczne w przypadku zanikowego zapalenia błony śluzowej nosa? Badanie eksperymentalne na zwierzętach doświadczalnych
Wprowadzenie: Zanikowe zapalenie błony śluzowej nosa (atrophic rhinitis; AR) jest chorobą charakteryzującą się zanikiem (atrofią) błony śluzowej, błony podśluzowej oraz tkanki kostnej, a także nadmiernym powiększaniem si...
Zastosowanie mikronaczyniowych wolnych płatów powięziowo-skórnych i mięśniowo-skórnych w chirurgii głowy i szyi
Partial parotidectomy – alternative method in surgical management of parotid gland Warthin tumours
82 patients with lymphadenoma of parotid gland treated with surgery in Department of Oncological Surgery Cancer Center, Gliwice in the period of 1986–2004 were retrospectively analyzed. They were about 22% of all patient...
Radiologiczna ocena stropu komórek sitowych – analiza płytki bocznej blaszki sitowej
Cel: Oceniano stopień asymetrii stropu komórek sitowych widoczny w obrazach tomografii komputerowej (TK) zatok przynosowych pacjentów tureckich bez zapalenia zatok. Materiał i metody: Przeprowadzono retrospektywną ocenę...
Combined tumor of ceruminous gland origin in the external auditory canal — a histopathological and immunohistochemical study
SUMMARY Objectives: We present a case of a combined tumor consisting of solid tubular gland adenoma (TA) and syringocystadenoma papilliferum (SCAP) of the external auditory canal and review of the literature on this subj...