Cord Blood Biomarkers of Placental Maternal Vascular Underperfusion Predict Bronchopulmonary Dysplasia-Associated Pulmonary Hypertension

Karen K. Mestan*, Nina Gotteiner, Nicolas Porta, William Grobman, Emily J. Su, Linda M. Ernst

*Corresponding author for this work

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

Objective To assess whether cord blood biomarkers associated with placental maternal vascular underperfusion (MVU) are predictive of bronchopulmonary dysplasia-associated pulmonary hypertension (BPD-PH). Study design Premature infants enrolled in a longitudinal cohort study were randomly sampled from 4 gestational age strata (n = 190, range 23-36 weeks). Fifteen factors from a human angiogenesis panel were measured in cord blood using multiplex immunoassay. Multivariate linear regression was used to compare biomarker levels according to placental histologic MVU, taking into account acute/chronic inflammation and fetal vascular pathology. Biomarkers associated with MVU were further evaluated in the subgroup of extremely low gestational age infants (gestational age ≤ 28 weeks; n = 48), and measured by enzyme-linked immunoassay in an additional 39 infants to determine associations with BPD (defined using the National Institutes of Health workshop criteria) and PH (identified by echocardiogram at 36 weeks of gestation). Results Cord blood placental growth factor (PIGF), granulocyte-colony stimulating factor (G-CSF), and vascular endothelial growth factor-A were decreased with MVU (P <.003), and decreased with BPD-PH (P <.05). The findings were validated for PIGF and G-CSF in 39 additional extremely low gestational age infants. In the combined group (n = 87), PIGF was decreased in infants with BPD-PH (n = 21) versus controls without PH (median 3 pg/mL [IQR 2-7] vs median 15 pg/mL [IQR 6-30], respectively; P <.001). G-CSF was similarly decreased with BPD-PH (median, 55 pg/mL [IQR 38-85] vs median 243 pg/mL [IQR 48-1593], respectively; P =.001). Receiver operator curve analysis revealed that decreased PIGF and G-CSF were predictive of BPD-PH (area under the curve 0.83 and 0.76, respectively). Conclusions Cord blood angiogenic factors that are decreased with placental MVU may serve as predictors of BPD-PH.

Original languageEnglish (US)
Pages (from-to)33-41
Number of pages9
JournalJournal of Pediatrics
Volume185
DOIs
StatePublished - Jun 2017

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Keywords

  • granulocyte colony-stimulating factor
  • placental growth factor
  • premature infant
  • vascular endothelial growth factor

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health

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