Neonatal Autonomic Function and Outcomes at 12-Months in Infants With Congenital Heart Disease

2.50
Hdl Handle:
http://hdl.handle.net/10755/621778
Category:
Full-text
Format:
Text-based Document
Type:
Poster
Level of Evidence:
N/A
Research Approach:
N/A
Title:
Neonatal Autonomic Function and Outcomes at 12-Months in Infants With Congenital Heart Disease
Author(s):
Harrison, Tondi M.; Brown, Roger
Lead Author STTI Affiliation:
Epsilon
Author Details:
Tondi M. Harrison, PhD, RN, CPNP, FAAN, Professional Experience: 1974-1979 -- Staff nursing, acute care pediatric nursing 1980-2000 -- Pediatric Nurse Practitioner and clinical faculty (again 2004-2005) 2001-2003 -- Manager clinical innovation and professional practice in an acute care setting Following research specialist positions from 2006-2008 and completion of PhD, academic and adjunct faculty positions in area of chronically ill infants (cardio-vascular and pulmonary disease). Numerous peer-reviewed publications and scientific presentations related to autonomic nervous system function in infants with congenital heart disease. Author Summary: Dr. Harrison is an Assistant Professor at The Ohio State University College of Nursing in Columbus, Ohio. She is an expert in the collection and interpretation of heart rate variability data as an index of autonomic nervous system function in infants and young children and has conducted numerous studies examining relationships between autonomic function and developmental outcomes.
Abstract:

Purpose: Infants with complex congenital heart disease (CCHD) have impaired autonomic nervous system (ANS) function.1-3 Impaired ANS function is a known predictor of morbidity and mortality in adults with acquired heart disease.4,5Relationships between early ANS function and outcomes in infants with CCHD is unknown. The purpose of this study is to examine relationships between ANS function during the initial hospitalization of newborn infants with CCHD and growth, development, and survival over the first year of life.

Methods: Continuous 24-hour electrocardiographic (ECG) recordings from 55 newborn infants, hospitalized at birth for treatment of CCHD, will be used to calculate heart rate variability (HRV) as an index of ANS function.6 ECG waveforms before and after surgical intervention were obtained from Philips bedside monitors, equipped with the Excel Medical Electronics Bedmaster research export tool, stored in the hospital’s central server, and exported to an encrypted research server. Raw ECG waveform data were then imported into the GE Healthcare MARS ECG analysis and Editing System (General Electric, Inc.) for HRV analysis. Each ECG complex was identified and characterized as to morphology by the computer software. This preliminary analysis is currently being verified by the PI to assure proper labeling of heart beats and artifact. Interbeat intervals associated with ectopic beats, non-sinoatrial node-initiated complexes, and artifact will be excluded from analysis. Power in three frequency domains will then be calculated: very low frequency (reflecting effects of thermoregulation and neurohormones on heart rate), low frequency (reflecting the combined effect of sympathetic and parasympathetic influences on heart rate), and high-frequency (reflecting parasympathetic influences on heart rate). Data related to growth (weight-for-age Z-scores), development (Bayley Scales of Infant Development III; occupational, physical, or speech intervention), and survival over 12 months will be obtained from the electronic medical record. Relationships among neonatal HRV and growth and development over 12 months will be analyzed using latent growth models with adjusting covariates. Relationships between neonatal HRV and survival at 12 months will be analyzed using logistic regression.

Results: We expect infants with more regulated ANS function during the neonatal time period will demonstrate improved growth and development. In addition, we expect markedly impaired neonatal ANS function to be associated with mortality within the first 12 months.

Conclusion: Identification of a non-invasive marker for morbidity and mortality in infants with CCHD will stimulate feasibility testing and implementation of low-cost, low-risk nursing interventions known to enhance autonomic function, such as skin-to-skin contact, comforting touch, and breast-feeding. Although these interventions are considered to be standard of care in neonatal intensive care units, they are rarely used in pediatric cardiac intensive care units where the majority of infants with CCHD currently receive care. Increasing our knowledge of relationships between early patterns of development of the ANS and later outcomes has the potential to improve nursing care and, ultimately, improve the quality of these infants’ lives.

Keywords:
Congenital Heart Disease; Heart rate variability; Infant Development
Repository Posting Date:
11-Jul-2017
Date of Publication:
11-Jul-2017
Other Identifiers:
INRC17PST91
Conference Date:
2017
Conference Name:
28th International Nursing Research Congress
Conference Host:
Sigma Theta Tau International
Conference Location:
Dublin, Ireland
Description:
Event Theme: Influencing Global Health Through the Advancement of Nursing Scholarship

Full metadata record

DC FieldValue Language
dc.language.isoen_USen
dc.type.categoryFull-texten
dc.formatText-based Documenten
dc.typePosteren
dc.evidence.levelN/Aen
dc.research.approachN/Aen
dc.titleNeonatal Autonomic Function and Outcomes at 12-Months in Infants With Congenital Heart Diseaseen_US
dc.contributor.authorHarrison, Tondi M.en
dc.contributor.authorBrown, Rogeren
dc.contributor.departmentEpsilonen
dc.author.detailsTondi M. Harrison, PhD, RN, CPNP, FAAN, Professional Experience: 1974-1979 -- Staff nursing, acute care pediatric nursing 1980-2000 -- Pediatric Nurse Practitioner and clinical faculty (again 2004-2005) 2001-2003 -- Manager clinical innovation and professional practice in an acute care setting Following research specialist positions from 2006-2008 and completion of PhD, academic and adjunct faculty positions in area of chronically ill infants (cardio-vascular and pulmonary disease). Numerous peer-reviewed publications and scientific presentations related to autonomic nervous system function in infants with congenital heart disease. Author Summary: Dr. Harrison is an Assistant Professor at The Ohio State University College of Nursing in Columbus, Ohio. She is an expert in the collection and interpretation of heart rate variability data as an index of autonomic nervous system function in infants and young children and has conducted numerous studies examining relationships between autonomic function and developmental outcomes.en
dc.identifier.urihttp://hdl.handle.net/10755/621778-
dc.description.abstract<p><strong>Purpose: </strong><span>Infants with complex congenital heart disease (CCHD) have impaired autonomic nervous system (ANS) function.</span><sup>1-3</sup><span> Impaired ANS function is a known predictor of morbidity and mortality in adults with acquired heart disease.</span><sup>4,5</sup><span>Relationships between early ANS function and outcomes in infants with CCHD is unknown. The purpose of this study is to examine relationships between ANS function during the initial hospitalization of newborn infants with CCHD and growth, development, and survival over the first year of life.</span></p> <p><strong>Methods: </strong>Continuous 24-hour electrocardiographic (ECG) recordings from 55 newborn infants, hospitalized at birth for treatment of CCHD, will be used to calculate heart rate variability (HRV) as an index of ANS function.<sup>6</sup> ECG waveforms before and after surgical intervention were obtained from Philips bedside monitors, equipped with the Excel Medical Electronics Bedmaster research export tool, stored in the hospital’s central server, and exported to an encrypted research server. Raw ECG waveform data were then imported into the GE Healthcare MARS ECG analysis and Editing System (General Electric, Inc.) for HRV analysis. Each ECG complex was identified and characterized as to morphology by the computer software. This preliminary analysis is currently being verified by the PI to assure proper labeling of heart beats and artifact. Interbeat intervals associated with ectopic beats, non-sinoatrial node-initiated complexes, and artifact will be excluded from analysis. Power in three frequency domains will then be calculated: very low frequency (reflecting effects of thermoregulation and neurohormones on heart rate), low frequency (reflecting the combined effect of sympathetic and parasympathetic influences on heart rate), and high-frequency (reflecting parasympathetic influences on heart rate). Data related to growth (weight-for-age <em>Z</em>-scores), development (Bayley Scales of Infant Development III; occupational, physical, or speech intervention), and survival over 12 months will be obtained from the electronic medical record. Relationships among neonatal HRV and growth and development over 12 months will be analyzed using latent growth models with adjusting covariates. Relationships between neonatal HRV and survival at 12 months will be analyzed using logistic regression.</p> <p><strong>Results: </strong>We expect infants with more regulated ANS function during the neonatal time period will demonstrate improved growth and development. In addition, we expect markedly impaired neonatal ANS function to be associated with mortality within the first 12 months.</p> <p><strong>Conclusion: </strong>Identification of a non-invasive marker for morbidity and mortality in infants with CCHD will stimulate feasibility testing and implementation of low-cost, low-risk nursing interventions known to enhance autonomic function, such as skin-to-skin contact, comforting touch, and breast-feeding. Although these interventions are considered to be standard of care in neonatal intensive care units, they are rarely used in pediatric cardiac intensive care units where the majority of infants with CCHD currently receive care. Increasing our knowledge of relationships between early patterns of development of the ANS and later outcomes has the potential to improve nursing care and, ultimately, improve the quality of these infants’ lives.</p>en
dc.subjectCongenital Heart Diseaseen
dc.subjectHeart rate variabilityen
dc.subjectInfant Developmenten
dc.date.available2017-07-11T19:56:25Z-
dc.date.issued2017-07-11-
dc.date.accessioned2017-07-11T19:56:25Z-
dc.conference.date2017en
dc.conference.name28th International Nursing Research Congressen
dc.conference.hostSigma Theta Tau Internationalen
dc.conference.locationDublin, Irelanden
dc.descriptionEvent Theme: Influencing Global Health Through the Advancement of Nursing Scholarshipen
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