Improved vitamin A supplementation regimen for breastfed very low birth weight infants.
OBJECTIVE
Preterm infants usually have low retinol status at birth and at discharge from hospital. We have evaluated a new protocol designed to improve plasma retinol in very low birth weight infants (VLBW, birth weight < 1500 g).


METHODS
An open intervention trial was conducted in which vitamin A was given in a human milk fortifier. The daily dose of vitamin A varied according to bodyweight and was given mixed with human milk instead of as a bolus. Blood samples were collected at inclusion and at discharge from hospital. Plasma was analyzed for retinol using high-performance liquid chromatography. The daily intake of vitamin A and plasma retinol concentration was compared with the vitamin protocol normally used in Norwegian hospitals.


RESULTS
Sixty VLBW infants were included and 53 completed the study. At discharge from hospital, the reference group had lower median plasma retinol concentrations compared to the modified group (0.30 microM vs. 0.49 microM, p = 0.008). Fewer infants in the modified group had plasma retinol levels below 0.35 microM (indicating reduced hepatic stores) compared to infants in the reference group (44% vs. 69%, p = 0.04).


CONCLUSIONS
The modified protocol improved plasma retinol levels at discharge compared to the reference protocol.
Aurvåg
Anne K
AK
Department of Pediatrics, Akershus University Hospital and Akershus Faculty Division, University of Oslo, Norway. anne.aurvaag@ahus.no
Henriksen
Christine
C
Drevon
Christian A
CA
Iversen
Per O
PO
Nakstad
Britt
B
D001942:Breast Feeding; D005260:Female; D005527:Food, Fortified; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D007236:Infant, Small for Gestational Age; D019102:Infant, Very Low Birth Weight; D008297:Male; D009664:Norway; D014801:Vitamin A / Q000097:blood / Q000627:therapeutic use*; D014802:Vitamin A Deficiency / Q000097:blood* / Q000188:drug therapy*
D014801:Vitamin A