Effect of Hypothermia on Distortion Product Otoacoustic Emission Findings in Children Undergoing Congenital Open Heart Surgery
نویسندگان
چکیده
otoacoustic emissions (DPOAE) generated from the OHC of the organ of Corti. Temperature is controlled (within certain rigid limits) in warm-blooded animals including human beings. To investigate extreme hypothermia in our study we selected patients undergoing congenital open heart surgery where body temperature can be lowered over a large temperature interval. To monitor inner ear functions, we measured distortion product otoacoustic emissions that can be applied repeatedly in a cardiovascular operating room that is electrically and acoustically noisy.
منابع مشابه
Cochlear Dysfunction in Children following Cardiac Bypass Surgery
Background. Sensorineural hearing loss after procedures including extracorporeal circulation and hypothermia is greater than general population. Mild hypothermia has a protective role on cochlea; however, deep hypothermia may result in cochlear injury. This research aimed at assessing auditory function in children after open heart surgery in relation to different hypothermic techniques. Subject...
متن کاملEvaluation of Distortion and Transient Evoked Otoacoustic Emission in Tinnitus Patients with Normal Hearing
Introduction: Tinnitus is a perception of sound without external source. The exact etiology of tinnitus is not fully understood, although some researchers believe that the condition usually starts in the cochlea. The aim of this study was to determine the potential contribution of outer hair cell dysfunction to chronic tinnitus, by application of Distortion-Product Evoked Otoacoustic Emission (...
متن کاملNon-thyroidal illness syndrome and cardiopulmonary bypass in children with congenital heart disease
Abstract Background: The thyroid hormones influence on all metabolic pathways. After heart surgery using cardiopulmonary bypass (CPB), serum T3 decreases and remains low for at least 24 hours. Several studies on pediatric have reported reduction of thyroid hormones after heart surgery. This study aimed to investigate the status of thyroid function tests in children with CPB surgery. Metho...
متن کاملبررسی میزان موفقیت عمل جراحی و نتایج تستهای شنوایی در اطفال بعداز گذاشتن لوله تمپانوستومی
Introduction: Otoacoustic emissions are low density sounds produced from intact cochlea measureable in the presence of an intact conduction structure. The goal of this study was to assess the surgical success rate after tympanostomy tube insertion by Distortion Product Otoacoustic Emission (DPOAE) and Transient Evoked Otoacoustic Emission (TEOAE) as methods of evaluation of postoperative hearin...
متن کامل