Document Detail

Blood pressure rhythms during the perinatal period in very immature, extremely low birthweight neonates.
MedLine Citation:
PMID:  10530906     Owner:  NLM     Status:  MEDLINE    
The aim of this study was to investigate if blood pressure (BP) rhythms were present in the perinatal period in very immature infants. Twenty-two infants, median gestational age 24-28 weeks, who had indwelling arterial lines with undamped arterial BP waveforms, were studied. The infants were all receiving intensive care under constant conditions. The hourly mean, systolic and diastolic BPs on days 2 and 7 were examined. A cosinor analysis of the mean BP was performed examining period lengths of 4, 8, 12, 16, 20, and 24 h to determine whether ultradian and/or circadian rhythms existed. On day 2, but not day 7, the mean and systolic BPs showed significant variation and circadian and ultradian rhythms were demonstrated. We suggest that maternal influences may be responsible for the BP rhythms noted in very immature infants on day 2.
G Dimitriou; A Greenough; V Kavvadia; S Mantagos
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Early human development     Volume:  56     ISSN:  0378-3782     ISO Abbreviation:  Early Hum. Dev.     Publication Date:  1999 Sep 
Date Detail:
Created Date:  1999-11-15     Completed Date:  1999-11-15     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7708381     Medline TA:  Early Hum Dev     Country:  IRELAND    
Other Details:
Languages:  eng     Pagination:  49-56     Citation Subset:  IM    
Children Nationwide Regional Neonatal Intensive Care Centre, King's College Hospital, London, UK.
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MeSH Terms
Blood Pressure / physiology*
Circadian Rhythm / physiology*
Data Interpretation, Statistical
Infant, Newborn
Infant, Premature / physiology*
Infant, Very Low Birth Weight / physiology*

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