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Spontaneous cries can alter the physiological well-being and cerebral oxygenation of very preterm infants.
MedLine Citation:
PMID:  23022718     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
INTRODUCTION: Infant crying is a major expression of distress and can occur without any exogenous stimulation. Little is known, however, about the effects of crying on physiological homeostasis in very preterm infants (VPIs). METHODS: Environmental, behavioral (video and audio recording) and physiologic (heart rate [HR], respiratory rate [RR], and systemic [SaO(2)] and regional cerebral oxygenation [rSO(2)]) parameters were prospectively evaluated over 10h in 18 VPIs (median gestational age, 28 [27-31] weeks). Only episodes of "spontaneous" and isolated cries were analyzed. Changes in parameters were compared over 5-second periods between baselines and 40s following the onset of crying. Two periods were distinguished: 0-20s (a) and 20-40s (b). Minimal and/or maximal values in these periods were also compared to the baseline. RESULTS: Of the 18 VPIs initially studied, 13 (72%) presented crying episodes (CE). They experienced 210 "spontaneous" and isolated CE, with a median of 9 [range, 1-63] CEs per child. Physiological values varied significantly from the baseline with mainly a mean decrease in HR of -4.8±5.3beats/min (b) after an initial mean increase of +2.6±2.0beats/min (a); a mean decrease in RR of -3.8±4.8cycles/min (a), followed by a mean increase of +5.6±7.3cycles/min (b) and mean unidirectional decreases in SaO(2) and rSO(2) (minimal values) of -1.8±2.3% and -2.5±3.0%, respectively. CONCLUSION: Spontaneous cries can alter the homeostasis of VPIs. Their possible adverse consequences and high occurrence emphasize the need for better prevention and response to them.
Authors:
Claire Zores; André Dufour; Claire Langlet; Benoît Escande; Dominique Astruc; Pierre Kuhn
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-9-27
Journal Detail:
Title:  Early human development     Volume:  -     ISSN:  1872-6232     ISO Abbreviation:  Early Hum. Dev.     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-10-1     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7708381     Medline TA:  Early Hum Dev     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ltd. All rights reserved.
Affiliation:
Laboratoire d'Imagerie & Neurosciences Cognitives, UMR 7237 Université de Strasbourg, Centre National de la Recherche Scientifique, Strasbourg, France; Service de Pédiatrie 2, Pôle Médico-chirurgical Pédiatrique, Hôpital de Hautepierre, Centre Hospitalier Universitaire de Strasbourg, France.
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