External and middle ear status related to evoked otoacoustic emission in neonates.
Arch Otolaryngol Head Neck Surg
; 119(3): 276-82, 1993 Mar.
Article
in En
| MEDLINE
| ID: mdl-8435165
ABSTRACT
OBJECTIVE:
Screening auditory status prior to neonatal hospital discharge to identify newborns with severe hearing impairment is an important pediatric care priority. Evoked otoacoustic emission (OAE) testing is a quick noninvasive method. The purpose of this study was to determine the relationship between external auditory canal and middle ear status with click-evoked OAE. It was hypothesized that vernix caseosa, debris in the ear canal, and middle ear fluid contribute to the OAE fail rate.DESIGN:
All neonates had an initial OAE examination. A second investigator, "blinded" to the results, examined all ears otoscopically, cleaned any obstructing debris, and repeated with a second OAE test.SETTING:
All neonates were tested in a designated nursery at a mean age of 43 +/- 21 hours. PATIENTS Forty-one full-term neonates were prospectively enrolled. INTERVENTION The ear canals with debris were cleaned under direct vision with a pediatric swab dampened by an alcohol wipe. OUTCOMEMEASURE:
The primary outcome measure was the postcleaning OAE pass rate.RESULTS:
The preotoscopic examination pass rate of 82 ears was 76%. The OAE pass rate improved to 91% after debris removal.CONCLUSIONS:
The results indicate that the examination and cleaning of the external ear canal are important components of the neonatal screening process.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Otoacoustic Emissions, Spontaneous
/
Ear Canal
/
Ear, Middle
/
Hearing Tests
Type of study:
Diagnostic_studies
/
Observational_studies
/
Prognostic_studies
Limits:
Female
/
Humans
/
Male
/
Newborn
Language:
En
Journal:
Arch Otolaryngol Head Neck Surg
Journal subject:
OTORRINOLARINGOLOGIA
Year:
1993
Type:
Article