Korean J Pediatr.  2007 Jun;50(6):536-542. 10.3345/kjp.2007.50.6.536.

The effect of restricted fluid intakes in the first week of life on the risk of bronchopulmonary dysplasia and patent ductus arteriosus in very low birth weight infants

• Koo HK
• Choi EN
• Namgung R
• Park MS
• Park KI
• Lee C

• KMID: 2278479
• DOI: http://doi.org/10.3345/kjp.2007.50.6.536

Abstract

PURPOSE: We investigated the effects of restricted fluid in the first 7 days of life on the risk of bronchopulmonary dysplasia (BPD) or patent ductus arteriosus (PDA) in very low birth weight (VLBW) infants.
METHODS
Eighty three VLBW infants who lived more than 28 days were selected. The amount of daily maintenance fluid was determined by calculation of insensible water loss (IWL) and urine output (UO). Seventy to 80 percent of calculated amount was given to the ventilated infants. Subjects were grouped into low (<25th%), moderate (25-75th%), and high (>75th%) fluid groups for the first 24 hours, 3 days and 7 days. Chi square tests analyzed proportions of subjects with or without morbidities across fluid groups. Multivariate logistic regression was used to analyze the effect of fluid intake on BPD or PDA, controlling for factors that are significantly associated with BPD or PDA by univariate analysis.
RESULTS
Rates of BPD and PDA were not significantly associated with fluid groups on each time period. The result was the same after controlling for factors that are significantly associated with BPD or PDA by univariate analysis. For the first 3 and 7 days, fluid intakes were positively related with maximal weight loss, urine output and mechanical ventilation duration.
CONCLUSION
In VLBW infants, when given based on needs reflected from IWL and UO versus intake, relatively low fluid intakes in the first week of life do not decrease the risk of BPD or PDA, and vice versa. We suggest that calculation of daily fluid based on IWL and UO is appropriate for VLBW infants.

Keyword

Very low birth weight; Fluid therapy; Bronchopulmonary dysplasia; Patent ductus arteriosus

MeSH Terms

Bronchopulmonary Dysplasia*
Ductus Arteriosus, Patent*
Fluid Therapy
Humans
Infant*
Infant, Newborn
Infant, Very Low Birth Weight*
Logistic Models
Respiration, Artificial
Water Loss, Insensible
Weight Loss