Purpose
To analyze the association between risk factors and severe intraventricular hemorrhage (grade II–IV) in PNB under 1500 g.
Methods
Multicenter, retrospective, analytical, case–control study in PNB under 34 weeks and under 1500 g admitted to the NICU. Case: PNB with severe intraventricular hemorrhage (grade II–IV). Logistic regression analysis was used to adjust for IVH-associated variables and odds ratios (OR).
Results
A total of 90 PNB files were analyzed, 45 cases and 45 controls. The highest risk factors for severe IVH were lower gestational age (OR 1.3, p < 0.001), perinatal asphyxia (OR 12, p < 0.001), Apgar < 6 at minute 1 and 5 (OR 6.3, p < 0.001).
Conclusion
Lower gestational age, birth asphyxia, Apgar score lower of 6, and respiratory-type factors are associated with increased risk for severe IVH.