Document Detail

Car seat test for preterm infants: comparison with polysomnography.
MedLine Citation:
PMID:  17412748     Owner:  NLM     Status:  MEDLINE    
OBJECTIVES: To monitor preterm infants in a cot and a car seat and compare an observed car seat trial with polysomnography (PSG).
DESIGN: Non-randomised controlled trial.
SETTING: Regional neonatal unit.
PATIENTS: Preterm infants before discharge.
INTERVENTIONS: Nap PSG respiratory and sleep variables were measured including gastro-oesophageal pH. Nurse observations included respiratory distress, apnoea measured by apnoea alarm, oxygen saturation and heart rate. Infants were studied supine in a cot and then in a car seat. Nursing observations were compared with PSG during the car seat trial only. Criteria for failure of the PSG and observed tests were predefined.
MAIN OUTCOME MEASURES: Difference in respiratory instability between cot and car seat. Concurrence regarding failure of the car seat trial between nurse-observed data and PSG.
RESULTS: 20 infants (median gestation 33 weeks (range 28-35 weeks; median postmenstrual age (PMA) at study 36.5 weeks (range 35-38 weeks)) were studied. There were sufficient car seat data on 18 infants for comparison. There were fewer central apnoeas and arousals in the cot than the car seat (p = 0.047 and p = 0.024, respectively). Airway obstruction was not more common in the car seat. Younger PMA at time of study predicted failure in both car seat (p = 0.022) and cot (p = 0.022). The nurse-observed test had low sensitivity for predicting PSG failure but more accurately predicted airway obstruction on PSG.
CONCLUSIONS: Immature infants exhibit respiratory instability in cots and car seats. A car seat test does not accurately detect all adverse events during sleep in the seat.
Dawn E Elder; Letitia Russell; Deidre Sheppard; Gordon L Purdie; Angela J Campbell
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Publication Detail:
Type:  Comparative Study; Controlled Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-04-05
Journal Detail:
Title:  Archives of disease in childhood. Fetal and neonatal edition     Volume:  92     ISSN:  1468-2052     ISO Abbreviation:  Arch. Dis. Child. Fetal Neonatal Ed.     Publication Date:  2007 Nov 
Date Detail:
Created Date:  2007-10-22     Completed Date:  2007-12-11     Revised Date:  2013-06-06    
Medline Journal Info:
Nlm Unique ID:  9501297     Medline TA:  Arch Dis Child Fetal Neonatal Ed     Country:  England    
Other Details:
Languages:  eng     Pagination:  F468-72     Citation Subset:  AIM; IM    
Department of Paediatrics, WSMHS, PO Box 7343, Wellington, New Zealand.
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MeSH Terms
Equipment Safety / methods*
Gastroesophageal Reflux / diagnosis,  etiology,  prevention & control
Heart Rate
Infant Equipment / adverse effects*
Infant, Newborn
Infant, Premature*
Nursing Assessment / methods
Oxygen / metabolism
Patient Discharge
Respiratory Insufficiency / diagnosis*,  etiology,  prevention & control
Sensitivity and Specificity
Sleep Apnea Syndromes / diagnosis,  etiology,  prevention & control
Sleep Apnea, Obstructive / diagnosis*,  etiology,  prevention & control
Supine Position
Reg. No./Substance:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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