Primary pulmonary vein stenosis among premature infants with single-vessel disease

Describe outcomes among preterm infants diagnosed with single-vessel primary pulmonary vein stenosis (PPVS) initially treated using conservative management (active surveillance with deferral of treatment).Retrospective cohort study at a single, tertiary-center (2009-2019) among infants <37 weeks' gestation with single-vessel PPVS. Infants were classified into two categories: disease progression and disease stabilization. Cardiopulmonary outcomes...