G Klinger1,2, M Osovsky1,2, V Boyko3, N Sokolover1,2, L Sirota1,2, L Lerner-Geva2,3, B Reichman2,3. 1. Department of Neonatal Intensive Care, Schneider Children's Medical Center of Israel, Petah Tikva, Israel. 2. Department of Pediatrics, The Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel. 3. The Women and Children's Health Research Unit, Gertner Institute, Chaim Sheba Medical Center, Tel Hashomer, Israel.
Abstract
OBJECTIVE: Post-hemorrhagic hydrocephalus (PHH) is associated with morbidity and mortality among very low birth weight (VLBW) infants. This study aimed to determine risk factors for PHH among VLBW infants with peri-intraventricular hemorrhage (PIVH). STUDY DESIGN: This is a population-based cohort of VLBW infants of 24 to 28 weeks gestation, born in Israel from 1995 to 2012. Infants in whom a brain ultrasound was not performed before 28 days or with major congenital malformations were excluded. Univariate and multivariable analyses identified risk factors associated with PHH. RESULTS: The final study cohort comprised 2811 infants with grade 2 or higher PIVH, of whom 610 (21.7%) developed PHH. PHH was independently associated with PIVH severity, with bilateral grade 3 PIVH and PIVH grade 3 and contralateral grade 4 having the highest risks (odds ratio (OR) 12.2, 95% confidence interval (CI) 8.56 to 17.4 and OR 13.7, 95% CI 9.4 to 20.1, respectively). Unilateral grade 3 or 4 PIVH's had moderately increased risks of PHH (OR 3.50, 95% CI 2.26 to 5.42 and OR 3.79, 95% CI 2.35 to 6.12, respectively). PHH was independently associated with increasing gestational age (GA) and with neonatal morbidities including patent ductus arteriosus (OR 1.47, 95% CI 1.15 to 1.88 if medically treated and OR 3.01, 95% CI 2.11 to 4.29 if surgically treated), sepsis (OR 1.79, 95% CI 1.44 to 2.22) and necrotizing enterocolitis (OR 1.60, 95% CI 1.18 to 2.17). CONCLUSIONS: Among VLBW infants with PIVH, PHH was independently associated with PIVH severity group, increasing GA and acute neonatal morbidities. Unilateral grade 3 or 4 PIVH was associated with a moderate risk of developing PHH compared with bilateral severe hemorrhages.
OBJECTIVE: Post-hemorrhagic hydrocephalus (PHH) is associated with morbidity and mortality among very low birth weight (VLBW) infants. This study aimed to determine risk factors for PHH among VLBW infants with peri-intraventricular hemorrhage (PIVH). STUDY DESIGN: This is a population-based cohort of VLBW infants of 24 to 28 weeks gestation, born in Israel from 1995 to 2012. Infants in whom a brain ultrasound was not performed before 28 days or with major congenital malformations were excluded. Univariate and multivariable analyses identified risk factors associated with PHH. RESULTS: The final study cohort comprised 2811 infants with grade 2 or higher PIVH, of whom 610 (21.7%) developed PHH. PHH was independently associated with PIVH severity, with bilateral grade 3 PIVH and PIVH grade 3 and contralateral grade 4 having the highest risks (odds ratio (OR) 12.2, 95% confidence interval (CI) 8.56 to 17.4 and OR 13.7, 95% CI 9.4 to 20.1, respectively). Unilateral grade 3 or 4 PIVH's had moderately increased risks of PHH (OR 3.50, 95% CI 2.26 to 5.42 and OR 3.79, 95% CI 2.35 to 6.12, respectively). PHH was independently associated with increasing gestational age (GA) and with neonatal morbidities including patent ductus arteriosus (OR 1.47, 95% CI 1.15 to 1.88 if medically treated and OR 3.01, 95% CI 2.11 to 4.29 if surgically treated), sepsis (OR 1.79, 95% CI 1.44 to 2.22) and necrotizing enterocolitis (OR 1.60, 95% CI 1.18 to 2.17). CONCLUSIONS: Among VLBW infants with PIVH, PHH was independently associated with PIVH severity group, increasing GA and acute neonatal morbidities. Unilateral grade 3 or 4 PIVH was associated with a moderate risk of developing PHH compared with bilateral severe hemorrhages.
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