Cara Morgan

1 Introduction Pulmonary hypertension (PH) in children is a heterogeneous condition associated with significant morbidity and mortality, encompassing pulmonary vascular disease occurring in isolation or in association with congenital heart disease, lung disease, developmental disorders and genetic syndromes [1-3]. Compared with adults, developmental abnormalities of the pulmonary vasculature and lung have a particularly important role in pediatric PH [4].