@article{ref1,
title="Car seat test for preterm infants: comparison with polysomnography",
journal="Archives of disease in childhood: fetal and neonatal edition",
year="2007",
author="Campbell, Angela J. and Purdie, Gordon L. and Sheppard, Deidre and Russell, Letitia and Elder, Dawn E.",
volume="92",
number="6",
pages="F468-72",
abstract="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.<p /><p>Language: en</p>",
language="en",
issn="1359-2998",
doi="10.1136/adc.2006.109488",
url="http://dx.doi.org/10.1136/adc.2006.109488"
}