Composition of Postnatal Weight Loss and Subsequent Weight Gain in Small for Dates Newborn Infants

Vanderwagen, A; Okken, A; Zweens, J; Zijlstra, Wg

doi:10.1111/j.1651-2227.1985.tb10921.x

Cited by 46 publications

(18 citation statements)

References 12 publications

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“…[7][8][9] This observation is consistent with the notion that in intrauterine growth restricted or SGA infants, the higher body water content is due to a lower lean body mass and fat content when expressed as percent birth weight. 10 Thus, it is somewhat counterintuitive to have a lower incidence of EPWL in SGA infants since the expectation is that a larger body fluid content 3,4 would result in more fluid loss after birth with greater accompanying weight loss.…”

supporting

confidence: 79%

“…Previous studies [7][8][9] have shown that small for gestational age (SGA) infants have a different body composition when compared with appropriate for gestational age (AGA) infants. Because SGA infants have less lean body mass and fat when expressed per kilogram body weight, their body water content is higher than their AGA counterparts.…”

Section: Introductionmentioning

confidence: 99%

“…10 Thus, it is somewhat counterintuitive to have a lower incidence of EPWL in SGA infants since the expectation is that a larger body fluid content 3,4 would result in more fluid loss after birth with greater accompanying weight loss. Alternatively, it has been suggested that SGA infants' postnatal weight loss is owing to catabolism rather than fluid loss, 9 in part due to their higher metabolic rate. 13,14 Thus, the reason(s) for the difference in the incidence of EPWL between SGA and AGA remains unknown and needs further investigation.…”

mentioning

confidence: 99%

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Association between early postnatal weight loss and death or BPD in small and appropriate for gestational age extremely low-birth-weight infants

Wadhawan

Perritt

et al. 2007

J Perinatol

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Objective: To examine the association between weight loss during the first 10 days of life and the incidence of death or bronchopulmonary dysplasia (BPD) in small for gestational age (SGA) and appropriate for gestational age (AGA) extremely low-birth-weight infants.Design/Methods: This is a retrospective analysis of a cohort of ELBW (birth weight <1000 g) infants from the NICHD Neonatal Research Network's database. The cohort consisted of 9461 ELBW infants with gestational age of 24-29 weeks, admitted to Network's participating centers during calendar years 1994-2002 and surviving at least 72 h after birth. The cohort was divided into two groups, 1248 SGA (with birth weight below 10th percentile for gestational age) and 8213 AGA (with birth weight between 10th and 90th percentile) infants. We identified infants with or without weight loss during the first 10 days of life, which we termed as 'early postnatal weight loss' (EPWL). Univariate analyses were used to predict whether EPWL was related to the primary outcome, death or BPD, within each birth weight/gestation category (SGA or AGA). BPD and death were also analyzed separately in relation to EPWL. Logistic regression analysis was done to evaluate the risk of death or BPD in SGA and AGA groups, controlling for maternal and neonatal demographic and clinical factors found to be significant by univariate analysis.Results: SGA ELBW infants had a lower prevalence of EPWL as compared with AGA ELBW infants (81.2 vs 93.7%, respectively, P<0.001). In AGA infants, univariate analysis showed that death or BPD rate was lower in the group of infants with EPWL compared with infants without EPWL (53.4 vs 74.3%, respectively, P<0.001). The BPD (47.2 vs 64%, P<0.001) and death (13.8 vs 32.9%, P<0.001) rate were similarly lower in the EPWL group. The risk-adjusted odds ratios (ORs) showed that EPWL was associated with lower rate of death or BPD (OR 0.47, 95% CI: 0.37-0.60). In SGA infants, on univariate analysis, a similar association between EPWL and outcomes was seen as shown in AGA infants: death or BPD (55.9 vs 75.2%, P<0.001), BPD rate (48.3 vs 62.1%, P ¼ 0.002) and rate death (19 vs 40.8%, P<0.001) for those with or without EPWL, respectively. Multiple logistic regression showed that as in AGA ELBW infants, EPWL was associated with lower risk for death or BPD (OR 0.60, 95% CI: 0.41-0.89) among SGA infants.Conclusions: SGA infants experienced less EPWL when compared with their AGA counterparts. EPWL was associated with a lower risk of death or BPD in both ELBW AGA and SGA infants. These data suggest that clinicians who consider the association between EPWL and risk of death or BPD should do so independent of gestation/birth weight status.

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confidence: 79%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Association between early postnatal weight loss and death or BPD in small and appropriate for gestational age extremely low-birth-weight infants

Wadhawan

Perritt

et al. 2007

J Perinatol

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“…TBW was determined from the distribution volume of DjO using an infrared spectrophotometric method [8]. Both methods have recently been described by us in more detail [10]. Intracellular water volume (ICW) was calculated as TBW-ECW.…”

Section: Measurement O F the Body Water Compartmentmentioning

confidence: 99%

Body Composition at Birth of Growth-Retarded Newborn Infants Demonstrating Catch-Up Growth in the First Year of Life

Vanderwagen¹,

Okken²,

Zweens³

et al. 1986

Neonatology

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Total body, extracellular, and intracellular water volume and solids, determined at birth in a group of newborn infants small for date (n = 10) who demonstrated catch-up growth in the first year of life, were compared to similar measurements in newborn infants appropriate for date (n = 11). No significant differences with regard to body water compartment volumes and solids could be found between the 2 groups. It is concluded that intrauterine growth retardation in infants who are capable of catching up in growth after birth is the result of a proportional reduction of the daily increments in fetal solids and body water.

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“…Sucrose has been used in adults as an indicator of extracellular volume (3)(4)(5)(6). The first pediatric study using sucrose was done in small-for-gestationalage preterm infants (7). The authors assumed a mono-exponential concentration-time curve, but did not investigate sucrose pharmacokinetics in this particular patient population.…”

mentioning

confidence: 99%

Estimation of Extracellular Volume in Preterm Infants <1500 g, Children, and Adults by Sucrose Dilution

Bauer¹,

Versmold²,

Prölss³

et al. 1990

Pediatr Res

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Composition of Postnatal Weight Loss and Subsequent Weight Gain in Small for Dates Newborn Infants

Cited by 46 publications

References 12 publications

Association between early postnatal weight loss and death or BPD in small and appropriate for gestational age extremely low-birth-weight infants

Association between early postnatal weight loss and death or BPD in small and appropriate for gestational age extremely low-birth-weight infants

Body Composition at Birth of Growth-Retarded Newborn Infants Demonstrating Catch-Up Growth in the First Year of Life

Estimation of Extracellular Volume in Preterm Infants <1500 g, Children, and Adults by Sucrose Dilution

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