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Reservoir and emptying function of the stomach of the premature infant.

Abstract

Gastric emptying of meals of human milk and infant formula was studied in 11 healthy preterm (AGA) infants using a marker dilution technique. Gastric emptying rate and gastric half-emptying time were compared with data from 17 healthy infants aged 4 weeks to 6 months. The amounts of human milk emptied from the stomach per 0.1 m2 of body surface area were 19.4 +/- 4.5 ml in preterm infants and 29.5 +/- 4.6 ml in term infants. The corresponding amounts with meals of infant formula were 13.8 +/- 2.8 and 22.7 +/- 4.2 ml, respectively. With the volumes given gastric half-emptying times for meals of human milk and infant formula were 25.1 +/- 11.5 and 51.9 +/- 9.8 min, respectively, in preterm infants. The corresponding half-emptying times for term infants were 48 +/- 15 and 78 +/- 14 min, respectively. The differences in gastric emptying rate as well as in gastric half-emptying time between the two meals were significant (p less than 0.01) both in preterm and term infants.

[Indexed for MEDLINE]

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