Document Detail

Maternal sounds elicit lower heart rate in preterm newborns in the first month of life.
MedLine Citation:
PMID:  25194837     Owner:  NLM     Status:  In-Process    
BACKGROUND: The preferential response to mother's voice in the fetus and term newborn is well documented. However, the response of preterm neonates is not well understood and more difficult to interpret due to the intensive clinical care and range of medical complications.
AIM: This study examined the physiological response to maternal sounds and its sustainability in the first month of life in infants born very pretermaturely.
METHODS: Heart rate changes were monitored in 20 hospitalized preterm infants born between 25 and 32 weeks of gestation during 30-minute exposure vs. non-exposure periods of recorded maternal sounds played inside the incubator. A total of 13,680 min of HR data was sampled throughout the first month of life during gavage feeds with and without exposure to maternal sounds.
RESULTS: During exposure periods, infants had significantly lower heart rate compared to matched periods of care without exposure on the same day (p<.0001). This effect was observed in all infants, across the first month of life, irrespective of day of life, gestational age at birth, birth weight, age at testing, Apgar score, caffeine therapy, and requirement for respiratory support. No adverse effects were observed.
CONCLUSION: Preterm newborns responded to maternal sounds with decreased heart rate throughout the first month of life. It is possible that maternal sounds improve autonomic stability and provide a more relaxing environment for this population of newborns. Further studies are needed to determine the therapeutic implications of maternal sound exposure for optimizing care practices and developmental outcomes.
Katherine Rand; Amir Lahav
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't     Date:  2014-09-09
Journal Detail:
Title:  Early human development     Volume:  90     ISSN:  1872-6232     ISO Abbreviation:  Early Hum. Dev.     Publication Date:  2014 Oct 
Date Detail:
Created Date:  2014-09-20     Completed Date:  -     Revised Date:  2014-12-02    
Medline Journal Info:
Nlm Unique ID:  7708381     Medline TA:  Early Hum Dev     Country:  Ireland    
Other Details:
Languages:  eng     Pagination:  679-83     Citation Subset:  IM    
Copyright Information:
Copyright © 2014 Elsevier Ltd. All rights reserved.
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