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Sound and vibration: effects on infants' heart rate and heart rate variability during neonatal transport.
MedLine Citation:
PMID:  21950547     Owner:  NLM     Status:  Publisher    
Aim:  To measure the effect of sound and whole-body vibration on infants' heart rate and heart rate variability during ground and air ambulance transport. Methods:  Sixteen infants were transported by air ambulance with ground ambulance transport to and from the airports. Whole-body vibration and sound levels were recorded and heart parameters were obtained by ECG signal. Results:  Sound and whole-body vibration levels exceeded the recommended limits. Mean whole-body vibration and sound levels were 0.19m/s(2) and 73dBA, respectively. Higher whole-body vibration was associated with a lower heart rate (p<0.05), and higher sound level was linked to a higher heart rate (p=0.05). The heart rate variability was significantly higher at the end of the transport than at the beginning (p<0.01). Poorer physiologic status was associated with lower heart rate variability (p<0.001) and a lower heart rate (p<0.01). Infants wearing earmuffs had a lower heart rate (p<0.05). Conclusions:  Sound and whole-body vibration during neonatal transport exceed recommended levels for adults and sound seem to have a more stressful effect on the infant than vibrations. Infants should wear earmuffs during neonatal transport because of the stress reducing effect.
Björn-Markus Karlsson; Marie Lindkvist; Markus Lindkvist; Marcus Karlsson; Ronnie Lundström; Stellan Håkansson; Urban Wiklund; Johannes van den Berg
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-9-23
Journal Detail:
Title:  Acta paediatrica (Oslo, Norway : 1992)     Volume:  -     ISSN:  1651-2227     ISO Abbreviation:  -     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-9-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9205968     Medline TA:  Acta Paediatr     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Acta Paediatrica © 2011 Foundation Acta Paediatrica.
Pediatrics, Department of Clinical Sciences, Umeå University, Umeå, Sweden Department of Statistics, Umeå University, Umeå, Sweden Department of Biological Engineering and Informatics, University Hospital, Umeå, Sweden Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden Department of Radiation Sciences, Umeå University, Umeå, Sweden.
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