Dummy/pacifier use in preterm infants increases blood pressure and improves heart rate control View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2016-02

AUTHORS

Rosemary S. C. Horne, Karinna L. Fyfe, Alexsandria Odoi, Anjalee Athukoralage, Stephanie R. Yiallourou, Flora Y. Wong

ABSTRACT

BACKGROUND: Preterm infants are at increased risk of sudden infant death syndrome (SIDS). Use of a dummy/pacifier is thought to be protective against SIDS; accordingly, we assessed the effects of dummy/pacifier use on blood pressure, cerebral oxygenation, and heart rate control over the first 6 mo of life after term corrected age (CA) when SIDS risk is greatest. METHODS: Thirty-five preterm infants were studied longitudinally at 2-4 wk, 2-3 mo, and 5-6 mo CA. Cardiac control was assessed from spectral indices of heart rate variability (HRV) in the low frequency (LF) and the high frequency (HF) range, and the ratio of HF/LF indicating sympathovagal balance was calculated. RESULTS: Overall, at 2-3 mo, mean arterial pressure was significantly higher in the supine position in dummy/pacifier users in both quiet sleep (70 ± 2 vs. 60 ± 2 mm Hg; P < 0.05) and active sleep (74 ± 3 vs. 69 ± 2 mm Hg; P < 0.05). Dummy/pacifier users had higher LF HRV and LF/HF ratio and lower HF HRV. CONCLUSION: Dummy/pacifier use increased blood pressure during sleep, at the age of greatest SIDS risk. Overall, LF HRV was elevated and HF HRV reduced in dummy/pacifier users, suggesting that dummy use alters cardiac control in preterm infants. More... »

PAGES

325-332

Identifiers

URI

http://scigraph.springernature.com/pub.10.1038/pr.2015.212

DOI

http://dx.doi.org/10.1038/pr.2015.212

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1000861790

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/26488553


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56 schema:description BACKGROUND: Preterm infants are at increased risk of sudden infant death syndrome (SIDS). Use of a dummy/pacifier is thought to be protective against SIDS; accordingly, we assessed the effects of dummy/pacifier use on blood pressure, cerebral oxygenation, and heart rate control over the first 6 mo of life after term corrected age (CA) when SIDS risk is greatest. METHODS: Thirty-five preterm infants were studied longitudinally at 2-4 wk, 2-3 mo, and 5-6 mo CA. Cardiac control was assessed from spectral indices of heart rate variability (HRV) in the low frequency (LF) and the high frequency (HF) range, and the ratio of HF/LF indicating sympathovagal balance was calculated. RESULTS: Overall, at 2-3 mo, mean arterial pressure was significantly higher in the supine position in dummy/pacifier users in both quiet sleep (70 ± 2 vs. 60 ± 2 mm Hg; P < 0.05) and active sleep (74 ± 3 vs. 69 ± 2 mm Hg; P < 0.05). Dummy/pacifier users had higher LF HRV and LF/HF ratio and lower HF HRV. CONCLUSION: Dummy/pacifier use increased blood pressure during sleep, at the age of greatest SIDS risk. Overall, LF HRV was elevated and HF HRV reduced in dummy/pacifier users, suggesting that dummy use alters cardiac control in preterm infants.
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