Intraoperative measures of electrically evoked auditory nerve compound action potential

B J Gantz; C J Brown; P J Abbas

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Intraoperative measures of electrically evoked auditory nerve compound action potential

Journal article

Peer reviewed

Intraoperative measures of electrically evoked auditory nerve compound action potential

B J Gantz, C J Brown and P J Abbas

The American journal of otology (New York, N.Y.), Vol.15(2), pp.137-144

03/1994

PMID: 8172292

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Abstract

A method for recording the electrically evoked whole-nerve action potential (EAP) at the time of cochlear implant surgery is described. Measures of EAP growth with stimulus level and functions describing the rate of recovery of the auditory nerve from the refractory state are reported for patients tested intraoperatively and for a group of patients using the ineraid implant, from whom recordings were made following implantation. Subjects tested intraoperatively were separated into three categories: congenitally deaf children (n = 14), prelingual meningitic children (n = 5), and postingual adults (n = 13). A fourth group consisted of postlingual adults (n = 14) tested postoperatively. Results from all groups showed a similar range of EAP growth and recovery rates across patients. Data from congenitally deaf children formed the exception showing steeper EAP growth functions than other subject groups. Electrically evoked whole-nerve action potential growth and recovery functions of the postoperative group of subjects showed modest correlations to speech perception scores measured after at least 18 months of implant use. The possible use of these measures in fitting an implant to an individual is discussed.

Adolescent

Adult

Child

Child, Preschool

Cochlea - surgery

Cochlear Implants

Deafness - rehabilitation

Deafness - surgery

Electric Stimulation

Equipment Design

Evoked Potentials, Auditory

Humans

Monitoring, Intraoperative

Nerve Regeneration

Speech Discrimination Tests

Speech Perception

Vestibulocochlear Nerve

Details

Title: Subtitle: Intraoperative measures of electrically evoked auditory nerve compound action potential
Creators: B J Gantz - University of Iowa
C J Brown
P J Abbas
Resource Type: Journal article
Publication Details: The American journal of otology (New York, N.Y.), Vol.15(2), pp.137-144
PMID: 8172292
NLM abbreviation: Am J Otol
ISSN: 0192-9763
Publisher: Lippincott Williams & Wilkins
Grant note: RR59 / NCRR NIH HHS P50 DC000242 / NIDCD NIH HHS NIDCD DC00242 / NIDCD NIH HHS
Language: English
Date published: 03/1994
Academic Unit: Communication Sciences and Disorders; Neurosurgery; Otolaryngology
Record Identifier: 9984304038102771

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