The effect of the number of averaged responses on the measurement of transiently evoked otoacoustic emissions in newborns

Korres, SG; Balatsouras, DG; Nikolopoulos, T; Korres, GS; Economou, NC; Ferekidis, E

dc.contributor.author	Korres, SG	en
dc.contributor.author	Balatsouras, DG	en
dc.contributor.author	Nikolopoulos, T	en
dc.contributor.author	Korres, GS	en
dc.contributor.author	Economou, NC	en
dc.contributor.author	Ferekidis, E	en
dc.date.accessioned	2014-03-01T01:55:43Z
dc.date.available	2014-03-01T01:55:43Z
dc.date.issued	2006	en
dc.identifier.issn	0165-5876	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/27815
dc.subject	universal newborn hearing screening	en
dc.subject	screening	en
dc.subject	hearing	en
dc.subject	otoacoustic emissions	en
dc.subject	transiently evoked otoacoustic emissions	en
dc.subject.classification	Otorhinolaryngology	en
dc.subject.classification	Pediatrics	en
dc.title	The effect of the number of averaged responses on the measurement of transiently evoked otoacoustic emissions in newborns	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	Objective: The aim of this study was to examine the effect of the number of averaged responses on the measurement of transiently evoked otoacoustic emissions (TEOAEs). Methods: The study was performed on the background of a universal newborn hearing screening program implemented in laso Maternity Hospital. Two groups of full-term newborns with normal otoacoustic emissions were studied. The first group included 58 newborns (115) ears, in which 260 low-noise samples, provided by the default setting of the equipment used (ILO88), were presented. The second group included 58 newborns (113) ears, in which 20-50 averaged responses were presented, until the "pass" criteria would be met. Statistical comparison between the following parameters recorded during TEOAE measurement was performed: Overall response, signal-to-noise ratios, reproducibility (whole and partial), stimulus intensity, stimulus stability, input noise, noise rejection level and duration of testing. Results: Statistically significant differences were found in most of these parameters, except for overall response, stimulus intensity and noise rejection Level. Conclusions: Although a smaller number of clicks is usually sufficient to obtain a "pass" in newborn hearing screening programs, the quality of recording of TEOAEs is significantly improved by increasing the number of averaged tow-noise responses. (c) 2005 Elsevier Ireland Ltd. ALL rights reserved.	en
heal.publisher	ELSEVIER IRELAND LTD	en
heal.journalName	INTERNATIONAL JOURNAL OF PEDIATRIC OTORHINOLARYNGOLOGY	en
dc.identifier.isi	ISI:000235354700007	en
dc.identifier.volume	70	en
dc.identifier.issue	3	en
dc.identifier.spage	429	en
dc.identifier.epage	433	en