[Calcium requirement in infants with intrauterine dystrophy. Report I. Indicators of calcium balance in infants with intrauterine dystrophy]. / Próba oceny zapotrzebowania na wapn u niemowlat urodzonych z dystrofia wewnatrzmaciczna. Doniesienie I. Zachowanie sie wskazników bilansu wapniowego u niemowlat urodzonych z dystrofia wewnatrzmaciczna.

ABSTRACT

Observations of many investigators point at a lower amount of calcium in body composition of Small-for-Date infants (S-f-D). So far, only few investigations indicated that the calcium metabolism is disturbed in the postnatal life of S-f-D infants as well. Taking into consideration these data, the authors attempt to define calcium-requirement in S-f-D infants. In this report the cross-sectional observations of 30 infants are described . They were born after 37 weeks of gestation. The mean body weight was 2318 and it ranged between 1200-2760 g. Their body weight at birth was below 10 percentile according to Brzozowska . In these infants 3-days balance studies were carried out once a month. The calcium balance indices were compared with the indices of the Full-Size infants (FS) who were observed during the former years. The S-f-D and FS infants were fed similar diets based on unmodified cow's milk formulas. It was noted that the percentage absorption index in S-f-D infants was significantly lower than in the control group in 1-st and 2-nd trimester of life (table III, fig. 2). The S-f-D infants had a good appetite in first semester of life and they ate a big volume of milk formula and calcium in it. It seems that this is the reason that calcium retention in S-f-D infants in spite of lower ability of calcium retention, did not differ statistically from calcium retention in FS infants. The mean values were a little lower however. In the 2-nd half year of life statistically significant difference between any of the balance indices in S-f-D and FS infants was not found.(ABSTRACT TRUNCATED AT 250 WORDS)