Determining the least time required for measuring energy expenditure in premature neonates
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Maria E.L. Moreira
Abstract
Objective: To compare O2 consumption, CO2 production, respiratory quotient and resting metabolic rate in premature neonates measured for 5 and 10 min steady-state periods and 15 and 20 min non-steady-state periods versus a 2-h measurement period.
Methods: A prospective study with neonates evaluated by indirect calorimetry. The measurements from the 5, 10, 15, and 20 min periods were taken based on the printout data from the IC monitor at an interval of 1 h before the beginning feeding and were contained in the 2-h measurement. The 5- and 10-min measurements followed the steady-state criterion.
Results: We evaluated 35 premature neonates appropriate for gestational age (born at 28–34 weeks' gestation). Mean age was 20 days ±9 (median 14 days) and mean weight was 1530±270 g (median 1510 g). There was no statistically significant difference between mean VO2, VCO2, respiratory quotient and energy expenditure at 5, 10, 15, and 20 min and 2 h.
Conclusions: The 5 and 10 min steady-state measurements or a measurement of more than 15 min without reaching steady state produce results similar to those of 2 h measurements.
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©2007 by Walter de Gruyter Berlin New York
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- Congress Calendar
- Roster of Perinatal Societies
Artikel in diesem Heft
- Cervical surgery and preterm birth
- How useful is 3D and 4D ultrasound in perinatal medicine?
- The combined effect of maternal smoking and obesity on the risk of preeclampsia
- Slow change in body mass index during early triplet pregnancy is associated with decreased birth weight
- Examining the relationship between positive mid-gestational fetal fibronectin assays and histological evidence of acute placental inflammation
- Paternal smoking is associated with a decreased prevalence of type 1 diabetes mellitus among offspring in two national British birth cohort studies (NCDS and BCS70)
- Three-dimensional ultrasound power Doppler assessment of the cervix: comparison between nulliparas and multiparas
- Gender- and parity-specific reference charts for fetal size in low risk singleton pregnancies at the onset of the third trimester
- Near term twin pregnancy: clinical relevance of weight discordance at birth
- Intracerebellar hemorrhage in premature infants: sonographic detection and outcome
- Determining the least time required for measuring energy expenditure in premature neonates
- Neither maternal nor fetal mutation (E474Q) in the α-subunit of the trifunctional protein is frequent in pregnancies complicated by HELLP syndrome
- Long-term subcutaneous morphine administration after surgery in newborns
- Superior sagittal sinus thrombosis: a rare but serious complication of hypernatremic dehydration in newborns
- Congress Calendar
- Roster of Perinatal Societies