Twin very low birth weight infants: a study of nutritional and hormonal status.
Nonidentical twin male infants (twin 1,950 g birth weight, twin 2,970 g) had their nutritional and hormone status studied for up to 59 days. Both infants received parenteral nutrition up to 32 days postnatally; enteral feeding was then established in twin 1; in twin 2 parenteral feeding was recommenced on day 35, for the remainder of the study. Serial 72-hr metabolic balances were performed in both infants at 4, 32, 45, and 56 days postnatally. Insulin-like growth factor I (IGF-I) and growth hormone were assayed on day 2 of each balance. During the course of the study growth was similar in each infant. Overall mean daily energy intakes were 90 kcal/kg/day and 84 kcal/kg/day and percentage nitrogen retention was 62% and 55% in twin 1 and twin 2, respectively. No differences were observed between the two infants in IGF-I or growth hormone. Despite low energy intakes incremental weights were within an acceptable range for both infants.
Saini
J
J
Department of Child Health, Charing Cross and Westminster Medical School, London, England.
Morgan
J B
JB
Teale
D
D
Kovar
I Z
IZ
D002149:Energy Intake; D004750:Enteral Nutrition; D013006:Growth Hormone / Q000032:analysis; D006801:Humans; D007230:Infant, Low Birth Weight / Q000378:metabolism*; D007231:Infant, Newborn; D007334:Insulin-Like Growth Factor I / Q000032:analysis; D008137:Longitudinal Studies; D008297:Male; D009584:Nitrogen / Q000008:administration & dosage / Q000378:metabolism; D009752:Nutritional Status; D010288:Parenteral Nutrition; D014429:Twins, Dizygotic
D007334:Insulin-Like Growth Factor I; D013006:Growth Hormone; D009584:Nitrogen