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Use in Newborn Infants

A Controlled Trial

Department of Pediatrics, Children's Mercy Hospital

Reaner Shannon, PhD

Department of Hematology, Truman Medical Center, University of Missouri-Kansas City Medical School, Kansas City, Missouri

Howard W. Kilbride, MD

Department of Pediatrics, Children's Mercy Hospital

The heparin lock technique has been available for parenteral access in older children and adults but has not yet been described for use in newborns. We randomized 39 newborns who needed parenteral medication in the intermediate care nursery to receive a heparin lock catheter (17) or an intravenous line kept patent by continuous low infusion rate (22). There were no differences between study groups with regard to birthweight, gestational age, or distribution of diagnoses. Infants in the heparin lock group were enrolled in the study on average 1 day longer than the continuous intravenous group (p < 0.05).

Subcutaneous infiltration occurred twice as frequently with the continuous intravenous line (p = 0.0015), and the life span was significantly less than heparin lock (1.0 ± 0.5 days versus 2.1 ± 1.0 days, p = 0.0003). Infants with continuous intravenous lines received approximately 20 ml/kg/day greater quantity of fluid (p < 0.0001). There was no difference between groups with regard to mean heparin activity level. None of the infants developed hemorrhagic complications, thrombophlebitis, or documented nosocomial infection. Nurses significantly favored heparin locks over continuous intravenous lines for ease of use.

The heparin lock technique is a safe and reasonable alternative to a continuous low infusion intravenous line for administering parenteral medications to intermediate care newborns.

Clinical Pediatrics, Vol. 28, No. 5, 237-240 (1989)
DOI: 10.1177/000992288902800509


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