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Risk factors for bronchopulmonary dysplasia in five Portuguese neonatal intensive care units

Hercília Guimarães1, Gustavo Rocha, Gabriela Vasconcellos

  • 1NICU, Hospital de S. João, Porto. hercíliaguimaraes@gmail.com [corrected]

Insights

Bronchopulmonary dysplasia (BPD) affects 12.9% of very low birth weight infants. Key risk factors include low birth weight, severe hyaline membrane disease, sepsis, and prolonged respiratory support and oxygen therapy.

Area of Science:

  • Neonatalogy
  • Pediatric Pulmonology
  • Critical Care Medicine

Background:

  • Bronchopulmonary dysplasia (BPD) is a significant complication in premature infants.
  • Its pathogenesis is multifactorial, involving prematurity, respiratory distress, oxygen, and mechanical ventilation.

Purpose of the Study:

  • To determine the prevalence of BPD in Portuguese Neonatal Intensive Care Units (NICUs).
  • To identify specific risk factors for BPD to improve management strategies.

Main Methods:

  • A cohort of 256 very low birth weight infants (gestational age <30 weeks and/or birth weight <1250 g) was studied.
  • Data were collected from hospital charts between 2004 and 2006.
  • BPD was defined as oxygen dependency at 36 weeks postconceptional age.

Main Results:

  • BPD prevalence was 12.9% (33/256).
  • Risk decreased with increasing gestational age and birth weight.
  • Significant risk factors included low birth weight, severe hyaline membrane disease, sepsis, prolonged mechanical ventilation, and extended oxygen therapy.

Conclusions:

  • Low birth weight, severe hyaline membrane disease, sepsis, and duration of respiratory support/oxygen therapy are critical risk factors for BPD.
  • Implementing targeted practices to mitigate these factors is essential for reducing lung injury in neonates.
Abstract

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