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Effect of intrauterine growth retardation on postnatal changes in body composition of preterm infants. 1995

S Singhi, and V Sood, and O N Bhakoo, and N K Ganguly
Department of Paediatrics, Postgraduate Institute of Medical Education & Research, Chandigarh.

To find the effect of intrauterine growth retardation on postnatal changes in body composition, we studied nine preterm small for date (SFD) and 9 gestation matched appropriate for gestational age (AGA) infants (mean +/- SD birth weight - SFD : 1431 +/- 16I g, AGA : 1904 +/- 223 g, gestational age - SFD; 237 +/- 9 days, AGA : 236 +/- 7 days). Total body water (TBW) and extracellular water (ECW) were measured at birth, on the day of maximum weight loss and on regaining of birth weight. Body solids were calculated from the difference between TBW and body weight. SFD infants had significantly less postnatal weight loss (64 +/- 19 g) than AGA infants (135 +/- 49 g; P < 0.01) and showed a significant gain in body solids (19 +/- 12 g) during this period which was not seen in AGA infants (-4 +/- 14 g; P < 0.05). The subsequent weight gain occurred at similar rates in SFD (16 +/- 4 g/day) and AGA (18 +/- 6 g/day) infants, but a significantly higher ratio of the weight gain consisted of solids in SFD as compared to AGA infants (P < 0.05). Per unit of body weight, SFD infants had significantly less body solids (213 +/- 12 g/kg) than AGA infants (228 +/- 18 g/kg; P < 0.05) at birth, but by the time birth weight was regained the two groups of infants had similar probody solids (SFD: 248 +/- 7 g/kg, AGA : 255 +/- 12 g/kg). These results suggest that in SFD infants catch-up growth starts early, during the period of apparent weight loss.

UI MeSH Term Description Entries
D007230 Infant, Low Birth Weight An infant having a birth weight of 2500 gm. (5.5 lb.) or less but INFANT, VERY LOW BIRTH WEIGHT is available for infants having a birth weight of 1500 grams (3.3 lb.) or less. Low Birth Weight,Low-Birth-Weight Infant,Birth Weight, Low,Birth Weights, Low,Infant, Low-Birth-Weight,Infants, Low-Birth-Weight,Low Birth Weight Infant,Low Birth Weights,Low-Birth-Weight Infants
D007231 Infant, Newborn An infant during the first 28 days after birth. Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D007234 Infant, Premature A human infant born before 37 weeks of GESTATION. Neonatal Prematurity,Premature Infants,Preterm Infants,Infant, Preterm,Infants, Premature,Infants, Preterm,Premature Infant,Prematurity, Neonatal,Preterm Infant
D007235 Infant, Premature, Diseases Diseases that occur in PREMATURE INFANTS.
D001823 Body Composition The relative amounts of various components in the body, such as percentage of body fat. Body Compositions,Composition, Body,Compositions, Body
D001835 Body Weight The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms. Body Weights,Weight, Body,Weights, Body
D005317 Fetal Growth Retardation Failure of a FETUS to attain expected GROWTH. Growth Retardation, Intrauterine,Intrauterine Growth Retardation,Fetal Growth Restriction,Intrauterine Growth Restriction
D005865 Gestational Age The age of the conceptus, beginning from the time of FERTILIZATION. In clinical obstetrics, the gestational age is often estimated from the onset of the last MENSTRUATION which is about 2 weeks before OVULATION and fertilization. It is also estimated to begin from fertilization, estrus, coitus, or artificial insemination. Embryologic Age,Fetal Maturity, Chronologic,Chronologic Fetal Maturity,Fetal Age,Maturity, Chronologic Fetal,Age, Embryologic,Age, Fetal,Age, Gestational,Ages, Embryologic,Ages, Fetal,Ages, Gestational,Embryologic Ages,Fetal Ages,Gestational Ages
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D016022 Case-Control Studies Comparisons that start with the identification of persons with the disease or outcome of interest and a control (comparison, referent) group without the disease or outcome of interest. The relationship of an attribute is examined by comparing both groups with regard to the frequency or levels of outcome over time. Case-Base Studies,Case-Comparison Studies,Case-Referent Studies,Matched Case-Control Studies,Nested Case-Control Studies,Case Control Studies,Case-Compeer Studies,Case-Referrent Studies,Case Base Studies,Case Comparison Studies,Case Control Study,Case Referent Studies,Case Referrent Studies,Case-Comparison Study,Case-Control Studies, Matched,Case-Control Studies, Nested,Case-Control Study,Case-Control Study, Matched,Case-Control Study, Nested,Case-Referent Study,Case-Referrent Study,Matched Case Control Studies,Matched Case-Control Study,Nested Case Control Studies,Nested Case-Control Study,Studies, Case Control,Studies, Case-Base,Studies, Case-Comparison,Studies, Case-Compeer,Studies, Case-Control,Studies, Case-Referent,Studies, Case-Referrent,Studies, Matched Case-Control,Studies, Nested Case-Control,Study, Case Control,Study, Case-Comparison,Study, Case-Control,Study, Case-Referent,Study, Case-Referrent,Study, Matched Case-Control,Study, Nested Case-Control

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