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Hearing Changes After Surgery

2020-04-01 04:26:57 | BioPortfolio

Summary

The purpose of this study is to measure the potential effects of surgical drilling noise and/or vibration exposure on the hearing in the ear contralateral to the surgical site during skull-based surgeries

Description

High-speed drills that are capable of producing elevated levels are used during skull based surgeries (Hilmi et al., 2011; Yu et al., 2014). Recently, it has been shown that surgical drilling may have a temporary effect on the amplitude of the otoacoustic emissions of the ear contralateral to the surgical site (Baradaranfar et al., 2015; Shenoy et al., 2015), however the temporary effects of surgical noise or vibration on the hearing of the non-surgical related ear needs to be better quantified. This study aims to to measure the potential effects of surgical drilling noise and/or vibration exposure on the hearing in the non operative ear, during surgical site during skull-based or mastoid surgeries. As part of the study patient will receive Audiometry for extended high frequencies, DPOAE, ECochG before and after the procedure.

Study Design

Conditions

Hearing Loss

Intervention

Distortion product otoacoustic emissions (DPOAE)

Location

UPMC Presbyterian
Pittsburgh
Pennsylvania
United States
15213

Status

Not yet recruiting

Source

Gateway Biotechnology, Inc.

Results (where available)

View Results

Links

Published on BioPortfolio: 2020-04-01T04:26:57-0400

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Medical and Biotech [MESH] Definitions

Self-generated faint acoustic signals from the inner ear (COCHLEA) without external stimulation. These faint signals can be recorded in the EAR CANAL and are indications of active OUTER AUDITORY HAIR CELLS. Spontaneous otoacoustic emissions are found in all classes of land vertebrates.

Hearing loss due to exposure to explosive loud noise or chronic exposure to sound level greater than 85 dB. The hearing loss is often in the frequency range 4000-6000 hertz.

Hearing loss due to disease of the AUDITORY PATHWAYS (in the CENTRAL NERVOUS SYSTEM) which originate in the COCHLEAR NUCLEI of the PONS and then ascend bilaterally to the MIDBRAIN, the THALAMUS, and then the AUDITORY CORTEX in the TEMPORAL LOBE. Bilateral lesions of the auditory pathways are usually required to cause central hearing loss. Cortical deafness refers to loss of hearing due to bilateral auditory cortex lesions. Unilateral BRAIN STEM lesions involving the cochlear nuclei may result in unilateral hearing loss.

An accumulation of ENDOLYMPH in the inner ear (LABYRINTH) leading to buildup of pressure and distortion of intralabyrinthine structures, such as COCHLEA and SEMICIRCULAR CANALS. It is characterized by SENSORINEURAL HEARING LOSS; TINNITUS; and sometimes VERTIGO.

Hearing loss due to damage or impairment of both the conductive elements (HEARING LOSS, CONDUCTIVE) and the sensorineural elements (HEARING LOSS, SENSORINEURAL) of the ear.

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