2.50
Hdl Handle:
http://hdl.handle.net/10755/159637
Type:
Presentation
Title:
Effect of nonnutritive sucking on heart rate variability in preterm infants
Abstract:
Effect of nonnutritive sucking on heart rate variability in preterm infants
Conference Sponsor:Midwest Nursing Research Society
Conference Year:2001
Author:McCain, Gail, PhD
P.I. Institution Name:Cincinnati Children's Hospital Medical Center
Title:Assistant Vice President
Contact Address:3333 Burnet Avenue, Cincinnati, OH, 45229-3039, USA
Contact Telephone:513.636.4200
This study tested the effect of nonnutritive sucking (NNS) on heart rate variability (HRV) in preterm infants. In two, level three intensive care nurseries, subjects were randomly assigned to control (n=41) or experimental (n=40) groups. The two groups were equivalent with respect to birth age, birth weight, sex, and race. Post conceptional age was 32.3 + .5 weeks. Infants in the experimental group were given a pacifier and held for 10 minutes while control infants were held for 10 minutes without a pacifier. The intervention was repeated daily for M=8 + 3 days. A non-invasive signal monitoring system captured the ECG and the respiratory activity. Using the R-R interval from the ECG and maximum activity excursions from the respiratory plethysmogram, a density spectral analysis generated the respiratory activity component (Rfa) and low frequency component (Lfa) of the HRV spectrum. Using the Mixed Procedure, infants in the NNS group had significantly lower Lfa and Rfa components, and significantly higher L/R ratios than control infants. The higher L/R ratios in the NNS group were due to the much larger decrease in Rfa than in the Lfa component. NNS appears to alter autonomic function, via, primarily, a withdrawal of vagal tone.
Repository Posting Date:
26-Oct-2011
Date of Publication:
17-Oct-2011
Sponsors:
Midwest Nursing Research Society

Full metadata record

DC FieldValue Language
dc.typePresentationen_GB
dc.titleEffect of nonnutritive sucking on heart rate variability in preterm infantsen_GB
dc.identifier.urihttp://hdl.handle.net/10755/159637-
dc.description.abstract<table><tr><td colspan="2" class="item-title">Effect of nonnutritive sucking on heart rate variability in preterm infants</td></tr><tr class="item-sponsor"><td class="label">Conference Sponsor:</td><td class="value">Midwest Nursing Research Society</td></tr><tr class="item-year"><td class="label">Conference Year:</td><td class="value">2001</td></tr><tr class="item-author"><td class="label">Author:</td><td class="value">McCain, Gail, PhD</td></tr><tr class="item-institute"><td class="label">P.I. Institution Name:</td><td class="value">Cincinnati Children's Hospital Medical Center</td></tr><tr class="item-author-title"><td class="label">Title:</td><td class="value">Assistant Vice President</td></tr><tr class="item-address"><td class="label">Contact Address:</td><td class="value">3333 Burnet Avenue, Cincinnati, OH, 45229-3039, USA</td></tr><tr class="item-phone"><td class="label">Contact Telephone:</td><td class="value">513.636.4200</td></tr><tr class="item-email"><td class="label">Email:</td><td class="value">mccag0@chmcc.org</td></tr><tr><td colspan="2" class="item-abstract">This study tested the effect of nonnutritive sucking (NNS) on heart rate variability (HRV) in preterm infants. In two, level three intensive care nurseries, subjects were randomly assigned to control (n=41) or experimental (n=40) groups. The two groups were equivalent with respect to birth age, birth weight, sex, and race. Post conceptional age was 32.3 + .5 weeks. Infants in the experimental group were given a pacifier and held for 10 minutes while control infants were held for 10 minutes without a pacifier. The intervention was repeated daily for M=8 + 3 days. A non-invasive signal monitoring system captured the ECG and the respiratory activity. Using the R-R interval from the ECG and maximum activity excursions from the respiratory plethysmogram, a density spectral analysis generated the respiratory activity component (Rfa) and low frequency component (Lfa) of the HRV spectrum. Using the Mixed Procedure, infants in the NNS group had significantly lower Lfa and Rfa components, and significantly higher L/R ratios than control infants. The higher L/R ratios in the NNS group were due to the much larger decrease in Rfa than in the Lfa component. NNS appears to alter autonomic function, via, primarily, a withdrawal of vagal tone.</td></tr></table>en_GB
dc.date.available2011-10-26T22:11:50Z-
dc.date.issued2011-10-17en_GB
dc.date.accessioned2011-10-26T22:11:50Z-
dc.description.sponsorshipMidwest Nursing Research Societyen_GB
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