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Maturation of the Cardiac Response to Sound in High-Risk Preterm Infants

Authors
 Rosemary C. White-Traut  ;  Michael N. Nelson  ;  Jean M. Silvestri  ;  Minu Patel  ;  Hyejung Lee  ;  Sabrina Cimo  ;  Emily McReynolds 
Citation
 Newborn and Infant Nursing Reviews : NAINR, Vol.9(4) : 193-199, 2009 
Journal Title
 Newborn and Infant Nursing Reviews : NAINR 
ISSN
 1527-3369 
Issue Date
2009
MeSH
Habituation to sound ; NICU environment ; Premature infant
Abstract
Noise is considered a potential source of stress in the neonatal intensive care unit (NICU); yet, it is unknown how preterm infants habituate to sound in the NICU. Heart rate responses to sound were evaluated in 12 preterm infants from 32 weeks' gestational age through hospital discharge. Heart rate response changes to auditory stimuli were recorded for 10 habituation and 10 dishabituation trials. Significant heart rate deceleration began to appear by 34 weeks postconceptional age. With weeks 32 to 38 combined, a significant response was noted for the novel response. Responses differed significantly for weeks 34, 35, and 36. Infants at 36 weeks had a significant heart rate response at T17 to T20, suggesting anticipation of a third stimulus. Infants with higher Apgar 5 scores had smaller heart rate responses. Findings suggest that preterm infants, especially those with lower Apgar scores, may be vulnerable to larger heart rate changes in response to sound and may require additional consideration.
Full Text
http://www.sciencedirect.com/science/article/pii/S152733690900138X
DOI
10.1053/j.nainr.2009.09.011
Appears in Collections:
3. College of Nursing (간호대학) > Dept. of Nursing (간호학과) > 1. Journal Papers
Yonsei Authors
Lee, Hyejung(이혜정) ORCID logo https://orcid.org/0000-0001-9357-0640
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/105792
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