Determinants of energy expenditure in ventilated preterm infants
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Mark P. DeMarie
Abstract
The purpose of this study was to determine oxygen consumption (VO2), carbon dioxide production (VCO2), and energy expenditure (EE) in a group of preterm ventilated infants during the first 3 weeks of life, and to determine the major factors that influence EE. Thirty-eight indirect calorimetry studies were performed in 18 ventilated infants with mean gestational age of 27.9 ± 0.6 (SEM) weeks. The relationship of demographic factors, nutrient intake, and severity of illness assessments on EE were determined by regression analysis. Repeated measure analysis was performed for the effect of multiple studies in the same patient. Although VO2, VCO2, and EE all tended to increase over the first 3 weeks of life, there was a wide range of values. EE was best predicted by non-protein calorie intake and postnatal age, while there was no correlation with birthweight, weight at the time of study, gestational age, protein intake, or severity of illness. Multiple regression analyses demonstrated a strong interaction between PNA and EI. In this population EE is best predicted by PNA and EI. The interactive effect between PNA and EI on EE is probably explained by the clinical practice of daily increments in substrate intake in these patients.
Copyright (c)1999 by Walter de Gruyter GmbH & Co. KG
Articles in the same Issue
- Contents
- Author Index
- Subject Index
- Birth of St. Mary (St. Anne’s parturition) in the light of messages from medical education: Three examples from Croatian sacral heritage
- Are color and pulsed Doppler sonography safe in early pregnancy?
- European Community Multi-Center Trial “Fetal ECG Analysis During Labor”: ST plus CTG analysis
- Prenatal and perinatal risk factors for autism
- Rupture of membranes before 26 weeks of gestation: Outcome of 148 consecutive cases
- Coagulation and fibrinolysis in viable mid-trimester pregnancies of normal, intrauterine growth retardation, chromosomal anomalies and hydrops fetalis and their eventual obstetric outcome
- Determinants of energy expenditure in ventilated preterm infants
- Perinatal outcome and management of single fetal death in twin pregnancy: A case series and review
- Comparison between creatine kinase brain isoenzyme (CKBB) activity and Sarnat score for prediction of adverse outcome following perinatal asphyxia
- Neonatal outcome in small for gestational age infants: Do they really better?
- Chronic lung disease and survival in 4 tertiary neonatal units
- Follow-up studies of newborn-babies with congenital ventriculomegaly
Articles in the same Issue
- Contents
- Author Index
- Subject Index
- Birth of St. Mary (St. Anne’s parturition) in the light of messages from medical education: Three examples from Croatian sacral heritage
- Are color and pulsed Doppler sonography safe in early pregnancy?
- European Community Multi-Center Trial “Fetal ECG Analysis During Labor”: ST plus CTG analysis
- Prenatal and perinatal risk factors for autism
- Rupture of membranes before 26 weeks of gestation: Outcome of 148 consecutive cases
- Coagulation and fibrinolysis in viable mid-trimester pregnancies of normal, intrauterine growth retardation, chromosomal anomalies and hydrops fetalis and their eventual obstetric outcome
- Determinants of energy expenditure in ventilated preterm infants
- Perinatal outcome and management of single fetal death in twin pregnancy: A case series and review
- Comparison between creatine kinase brain isoenzyme (CKBB) activity and Sarnat score for prediction of adverse outcome following perinatal asphyxia
- Neonatal outcome in small for gestational age infants: Do they really better?
- Chronic lung disease and survival in 4 tertiary neonatal units
- Follow-up studies of newborn-babies with congenital ventriculomegaly
