scholarly journals Longitudinal evaluation of energy expenditure in preterm infants with birth weight less than 1000 g

2003 ◽  
Vol 89 (4) ◽  
pp. 533-537 ◽  
Author(s):  
Jacqueline Bauer ◽  
Kathrin Maier ◽  
Gerald Hellstern ◽  
Otwin Linderkamp
Keyword(s):  
Weight Gain ◽  
Birth Weight ◽  
Energy Expenditure ◽  
Energy Intake ◽  
Preterm Infants ◽  
Gestational Age ◽  
Open Circuit ◽  
Extremely Low Birth Weight ◽  
Postnatal Life ◽  
Low Birth Weight Infants

The aim of the present study was to obtain serial values of O2 consumption (VO2), CO2 production (VCO2) and energy expenditure (EE) in healthy but extremely-low-birth-weight infants (birth weight <1000 g), during the first 5 weeks after birth. A total of seventeen spontaneously breathing and appropriate-for-gestational-age (birth weight and body length above the 10th and below the 90th percentile) preterm infants with gestational age 25–28 weeks and birth weight 590–990 g were enrolled in the study. Calorimetry was performed using an open-circuit calorimeter on days 6, 12, 18, 24, 30 and 36 of postnatal life. During the 5 weeks of observation, VO2 increased from 4·7 (SD 0·5) TO 9·1 (sd 1·0) ml/kg per min, VCO2 from 4·5 (sd 0·4) to 8·3 (SD 0·6) ml/kg per min and EE from 115 (sd 12) to 310 (sd 71) kJ/kg per d. The energy intake was always higher than EE, even at days 6 and 12. The RER decreased from 0·99 (sd 0·09) at day 12 to 0·91 (SD 0·05) at day 30. On all study days, there were highly significant positive correlations between energy intake and weight gain, EE and weight gain, and EE and energy intake (P<0·05). Multiple regression analysis showed that on most study days EE was more affected by energy intake than by weight gain. We conclude that in healthy preterm infants with birth weight <1000 g, EE increases by about 150 % in the first 5 weeks after birth, and that the EE values are related to energy intake and weight gain independent of postnatal age.

scholarly journals ANALYSIS OF THE DIFFERENCES BETWEEN THE PRESCRIBED AND THE ADMINISTERED DIET TO PRETERM INFANTS USING AN ELECTRONIC TOO

2019 ◽  
Vol 37 (4) ◽  
pp. 472-478 ◽  
Author(s):  
Olivia Araújo Zin ◽  
Fernanda Valente Mendes Soares ◽  
Andrea Dunshee de Abranches ◽  
Ana Carolina Carioca da Costa ◽  
Letícia Duarte Villela ◽  
...  
Keyword(s):  
Birth Weight ◽  
Preterm Infants ◽  
Gestational Age ◽  
Very Low Birth Weight ◽  
Body Weight Gain ◽  
Nutritional Deficiencies ◽  
Percentage Error ◽  
Electronic Instrument ◽  
Health Providers ◽  
Low Birth Weight Infants

ABSTRACT Objective: To create an electronic instrument in order to analyze the adequacy of the preterm infants’ nutritional therapy, checking the difference between the prescribed and the administered diet. Methods: A prospective and observational study on newborns with birthweight ≤1,500g and/or gestational age ≤32 weeks, without congenital malformations. The electronic instrument was developed based on Microsoft Excel 2010 spreadsheets and aimed at automatically calculating body weight gain, calories and macronutrients received daily by each patient from parenteral nutrition, intravenous hydration and enteral feedings. The weekly means of each nutrient were used to compare the prescribed and administered diets. Results: To evaluate the instrument, 60 newborns with a birth weight of 1,289±305 g and a gestational age of 30±2 weeks were included. Of them, 9.6% had restricted growth at birth and 55% at discharge. The median length of stay was 45±17 days. There were significant differences between prescribed and administered diet for all of the macronutrients and for total calories in the first three weeks. The lipid was the macronutrient with the greatest percentage error in the first week of life. Conclusions: The use of a computational routine was important to verify differences between the prescribed and the administered diet. This analysis is necessary to minimize calculation errors and to speed up health providers’ decisions about the nutritional approach, which can contribute to patients’ safety and to good nutritional practice. Very low birth weight infants are extremely vulnerable to nutritional deficiencies and any reduction in macronutrients they receive may be harmful to achieve satisfactory growth.

Energy expenditure, energy balance, and composition of weight gain in low birth weight infants fed diets of different protein and energy content

1987 ◽  
Vol 110 (5) ◽  
pp. 753-759 ◽  
Author(s):  
Karl F. Schulze ◽  
Mark Stefanski ◽  
Julia Masterson ◽  
Regina Spinnazola ◽  
Rajasekhar Ramakrishnan ◽  
...  
Keyword(s):  
Weight Gain ◽  
Birth Weight ◽  
Energy Balance ◽  
Energy Expenditure ◽  
Low Birth Weight ◽  
Energy Content ◽  
Low Birth Weight Infants

Reticulocyte Count: The Forgotten Factor in Transfusion Decisions for Extremely Low Birth Weight Infants

2021 ◽  
Author(s):  
Daniel Nakhla ◽  
Alla Kushnir ◽  
Rafat Ahmed ◽  
Vineet Bhandari ◽  
Krystal Hunter ◽  
...  
Keyword(s):  
Birth Weight ◽  
Low Birth Weight ◽  
Gestational Age ◽  
Reticulocyte Count ◽  
Retrospective Chart Review ◽  
Extremely Low Birth Weight ◽  
Positive Trend ◽  
Reference Ranges ◽  
Low Birth Weight Infants ◽  
Packed Red Blood Cells

Background: Extremely low birth weight (ELBW) infants often receive transfusions of packed red blood cells. Long-term outcomes of infants treated with liberal versus restricted transfusion criteria have been evaluated with conflicting results. Clinicians incorporate a reticulocyte count (RC) in their transfusion decisions. There is a lack of information on reference ranges for RCs in growing ELBW infants and whether infant’s chronologic age or corrected gestational age generates a specific trend in the RCs. Objective: Our aim was to evaluate the levels of RCs obtained from ELBW infants over the course of the initial hospitalization. Study Design: A retrospective chart review of ELBW infants treated in the neonatal intensive care unit and had RCs performed. We analyzed the RCs to observe trends based on the chronologic age and corrected gestational age. Results: A total of 738 RCs were analyzed. A positive trend in RCs that reached a peak at 32-34 weeks corrected gestational age and then experienced a downward trend was observed. Conclusions: Our report examines a very common hematologic test that is theoretically helpful but is in need of guidelines concerning the appropriate frequency of testing and its utility in making transfusion decisions in ELBW infants.

Bone fracture in severe small-for-gestational-age, extremely low birth weight infants: A single-center analysis

2017 ◽  
Vol 106-107 ◽  
pp. 75-78 ◽  
Author(s):  
Hidehiko Maruyama ◽  
Shoichiro Amari ◽  
Hideshi Fujinaga ◽  
Shuhei Fujino ◽  
Junko Nagasawa ◽  
...  
Keyword(s):  
Birth Weight ◽  
Low Birth Weight ◽  
Gestational Age ◽  
Small For Gestational Age ◽  
Bone Fracture ◽  
Extremely Low Birth Weight ◽  
Single Center ◽  
Low Birth Weight Infants
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