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Antecedents of clinically significant pulmonary hemorrhage among newborn infants

T M Berger1, E N Allred, L J Van Marter

  • 1Division of Newborn Medicine, Harvard Medical School, Boston, MA, USA. thomas.berger@ksl.gsd.lu.ch

Journal of Perinatology : Official Journal of the California Perinatal Association
|August 2, 2000
PubMed

Insights

Pulmonary hemorrhage (PH) risk factors differ in preterm and term infants. Preterm infants face risks from prematurity and interventions, while term infants are more affected by meconium aspiration and hypotension.

Area of Science:

  • Neonatology
  • Pediatric Critical Care
  • Respiratory Medicine

Background:

  • Pulmonary hemorrhage (PH) is a serious complication in neonates.
  • Understanding risk factors is crucial for prevention and management.

Purpose of the Study:

  • To identify and compare risk factor profiles for clinically significant pulmonary hemorrhage (PH) in preterm (PT) and near-term/full-term (NT/FT) infants.

Main Methods:

  • A case-control study was conducted involving infants with PH admitted to three Harvard-affiliated neonatal intensive care units from 1987 to 1994.

Main Results:

  • Fifty PH cases occurred in PT infants (gestational age [GA] ≤ 34 weeks) and 26 in NT/FT infants (GA > 34 weeks).
  • For PT infants, PH risk was associated with GA 24-26 weeks and positive pressure ventilation, while antenatal glucocorticoid treatment was protective.
  • For NT/FT infants, PH risk factors included meconium aspiration, positive pressure ventilation, and hypotension.

Conclusions:

  • The timing and antecedent factors of PH vary significantly between preterm and term infants.
  • These differences suggest that both developmental maturity and perinatal/neonatal conditions influence PH mechanisms.
Abstract

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