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Intraventricular hemorrhage in neonates born from 23 to 26 weeks of gestation: Retrospective analysis of risk factors.

BACKGROUND: The study aim was to determine the incidence and analyze risk factors of IVH stage 3 and 4 in infants born before 26 weeks of gestation.

OBJECTIVES: A retrospective analysis of 110 preterm babies (23-26 weeks of gestation) hospitalized from 2009 to 2014 at the Department of Neonatology of Poznan University of Medical Sciences was performed.

MATERIAL AND METHODS: In the study group there were 29 (26.4%) children in the 23rd-24th weeks of pregnancy and 81 (73.6%) in the 25th-26th weeks of gestation.

RESULTS: Among IVH stage 3 and 4 in neonates without prenatal steroids therapy, OR was 1.616 (1.059- 2.456; p = 0.022) for children born in the 23rd-24th week of gestation and 1.677 (1.001-2.809; p = 0.047) for children born in the 25th-26th week of pregnancy. An analysis of various risk factors revealed the chance of the appearance IVH stage 3 and 4 among neonates born in the 23th-24th and 25th-26th week of gestation rising only among those children who were treated for hypotension with catecholamines (OR 2.031 (0.269-24.21), p = 0.033 and OR 1.989 (0.224-16.55), p = 0.024).

CONCLUSIONS: The lower the gestational age, the more frequent the risk of IVH stage 3 and 4. The use of appropriate prophylaxis of perinatal patients (steroids in all pregnant women at risk of preterm birth, limiting the indications for the use of catecholamines for hypotension treatment) reduces the incidence of severe IVH.

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