Significance of Neonatal Heart Rate in the Delivery Room—A Review

Background: Heart rate (HR) is considered the main vital sign in newborns during perinatal transition, with a threshold of 100 beats per minute (bpm), below which, intervention is recommended. However, recent changes in delivery room management, including delayed cord clamping, are likely to have in...

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Main Authors: Ellisiv Nerdrum Aagaard, Anne Lee Solevåg, Ola Didrik Saugstad
Format: Article
Language:English
Published: MDPI AG 2023-09-01
Series:Children
Subjects:
Online Access:https://www.mdpi.com/2227-9067/10/9/1551
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author Ellisiv Nerdrum Aagaard
Anne Lee Solevåg
Ola Didrik Saugstad
author_facet Ellisiv Nerdrum Aagaard
Anne Lee Solevåg
Ola Didrik Saugstad
author_sort Ellisiv Nerdrum Aagaard
collection DOAJ
description Background: Heart rate (HR) is considered the main vital sign in newborns during perinatal transition, with a threshold of 100 beats per minute (bpm), below which, intervention is recommended. However, recent changes in delivery room management, including delayed cord clamping, are likely to have influenced normal HR transition. Objective: To summarize the updated knowledge about the factors, including measurement methods, that influence HR in newborn infants immediately after birth. Additionally, this paper provides an overview of delivery room HR as a prognostic indicator in different subgroups of newborns. Methods: We searched PubMed, EMBASE, and Google Scholar with the terms infant, heart rate, delivery room, resuscitation, pulse oximetry, and electrocardiogram. Results: Seven studies that described HR values in newborn infants immediately after birth were included. Pulse oximetry-derived HR percentiles after immediate cord clamping may not be applicable to the current practice of delayed cord clamping and the increasing use of delivery room electrocardiograms. Mask ventilation may adversely affect HR, particularly in premature and non-asphyxiated infants. Prolonged bradycardia is a negative prognostic factor, especially if combined with hypoxemia in infants <32 weeks of gestation. Conclusions: HR assessment in the delivery room remains important. However, the cardiopulmonary transition is affected by delayed cord clamping, gestational age, and underlying conditions.
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spelling doaj.art-e828f55e0013465795641e283961937d2023-11-19T10:04:06ZengMDPI AGChildren2227-90672023-09-01109155110.3390/children10091551Significance of Neonatal Heart Rate in the Delivery Room—A ReviewEllisiv Nerdrum Aagaard0Anne Lee Solevåg1Ola Didrik Saugstad2Division of Pediatric and Adolescent Medicine, Oslo University Hospital Rikshospitalet, 0424 Oslo, NorwayDivision of Pediatric and Adolescent Medicine, Oslo University Hospital Rikshospitalet, 0424 Oslo, NorwayDepartment of Pediatric Research, University of Oslo, 0424 Oslo, NorwayBackground: Heart rate (HR) is considered the main vital sign in newborns during perinatal transition, with a threshold of 100 beats per minute (bpm), below which, intervention is recommended. However, recent changes in delivery room management, including delayed cord clamping, are likely to have influenced normal HR transition. Objective: To summarize the updated knowledge about the factors, including measurement methods, that influence HR in newborn infants immediately after birth. Additionally, this paper provides an overview of delivery room HR as a prognostic indicator in different subgroups of newborns. Methods: We searched PubMed, EMBASE, and Google Scholar with the terms infant, heart rate, delivery room, resuscitation, pulse oximetry, and electrocardiogram. Results: Seven studies that described HR values in newborn infants immediately after birth were included. Pulse oximetry-derived HR percentiles after immediate cord clamping may not be applicable to the current practice of delayed cord clamping and the increasing use of delivery room electrocardiograms. Mask ventilation may adversely affect HR, particularly in premature and non-asphyxiated infants. Prolonged bradycardia is a negative prognostic factor, especially if combined with hypoxemia in infants <32 weeks of gestation. Conclusions: HR assessment in the delivery room remains important. However, the cardiopulmonary transition is affected by delayed cord clamping, gestational age, and underlying conditions.https://www.mdpi.com/2227-9067/10/9/1551infantsnewbornneonatal resuscitationheart ratepulse oximetryelectrocardiogram
spellingShingle Ellisiv Nerdrum Aagaard
Anne Lee Solevåg
Ola Didrik Saugstad
Significance of Neonatal Heart Rate in the Delivery Room—A Review
Children
infants
newborn
neonatal resuscitation
heart rate
pulse oximetry
electrocardiogram
title Significance of Neonatal Heart Rate in the Delivery Room—A Review
title_full Significance of Neonatal Heart Rate in the Delivery Room—A Review
title_fullStr Significance of Neonatal Heart Rate in the Delivery Room—A Review
title_full_unstemmed Significance of Neonatal Heart Rate in the Delivery Room—A Review
title_short Significance of Neonatal Heart Rate in the Delivery Room—A Review
title_sort significance of neonatal heart rate in the delivery room a review
topic infants
newborn
neonatal resuscitation
heart rate
pulse oximetry
electrocardiogram
url https://www.mdpi.com/2227-9067/10/9/1551
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AT oladidriksaugstad significanceofneonatalheartrateinthedeliveryroomareview