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J Perinatol. 2006 May;26(5):279-85.

Hypercapnia during the first 3 days of life is associated with severe intraventricular hemorrhage in very low birth weight infants.

Author information

1
Department of Pediatrics, College of Medicine, University of Arkansas for Medical Sciences, Little Rock, 72202, USA. kaiserjeffreyr@uams.edu

Abstract

OBJECTIVE:

To examine whether hypercapnia in very low birth weight (VLBW) infants during the first 3 days of life is associated with severe intraventricular hemorrhage (IVH).

STUDY DESIGN:

Retrospective cohort study of inborn VLBW infants between January 1999 and May 2004 with arterial access during the first 3 days of life. A multiple logistic regression analysis was used where IVH was dichotomized ((grades 0/1/2) = non-severe; (grades 3/4) = severe). Measures of hypercapnia were entered into the model to ascertain their association with severe IVH.

RESULTS:

In total, 574 VLBW infants met entry criteria. Worst IVH grade was 0 in 400; 1: 54; 2: 42; 3: 47; and 4: 31 infants. The logistic regression model consisted of the following predictors of severe IVH: gestational age, gender, 1 min Apgar score (dichotomized into two groups: >3 vs < or =3), multifetal gestation, vasopressor use, and maximum PaCO(2).

CONCLUSION:

In addition to traditional risk factors, it appears maximum PaCO(2) is a dose-dependent predictor of severe IVH during the permissive hypercapnia era.

PMID:
16554847
DOI:
10.1038/sj.jp.7211492
[Indexed for MEDLINE]
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