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Updated: Jul 4, 2025

Isolation of Pulmonary Artery Smooth Muscle Cells from Neonatal Mice
Published on: October 19, 2013
Early Pulmonary Hypertension in Preterm Infants
Srinivasan Mani1, Hussnain Mirza2, James Ziegler3
1Section of Neonatology, Department of Pediatrics, The University of Toledo/ ProMedica Russell J. Ebeid Children's Hospital, Toledo, OH 43606, USA.
Abstract:
Pulmonary hypertension (PH) in preterm neonates has multifactorial pathogenesis with unique characteristics. Premature surfactant-deficient lungs are injured following exposure to positive pressure ventilation and high oxygen concentrations resulting in variable phenotypes of PH. The prevalence of early PH is variable and reported to be between 8% and 55% of extremely preterm infants. Disruption of the lung development and vascular signaling pathway could lead to abnormal pulmonary vascular transition. The management of early PH and the off-label use of selective pulmonary vasodilators continue to be controversial.
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