title: Portopulmonary hypertension: a tale of two circulations.
abstract: Pulmonary involvement is common in patients with portal hypertension and can manifest in diverse manners. Changes in pulmonary arterial resistance, manifesting either as the hepatopulmonary syndrome or portopulmonary hypertension (PPHTN), have been increasingly recognized in these patients in recent years. This review summarizes the clinicopathologic features, diagnostic criteria, as well as the latest concepts in the pathogenesis and management of PPHTN, which is defined as an elevated pulmonary artery pressure in the setting of an increased pulmonary vascular resistance and a normal wedge pressure in a patient with portal hypertension.
authors.affiliation: Pulmonary and Critical Care Division, Department of Medicine, Tufts-New England Medical Center, Tufts University School of Medicine, Boston, MA, USA.
authors.forename: Rohit
authors.initials: R
authors.lastname: Budhiraja
authors.forename: Paul M
authors.initials: PM
authors.lastname: Hassoun
mesh_terms: D006801:Humans; D006975:Hypertension, Portal / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology / Q000628:therapy; D006976:Hypertension, Pulmonary / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology / Q000628:therapy; D011379:Prognosis; D011651:Pulmonary Artery / Q000473:pathology; D011669:Pulmonary Wedge Pressure / Q000502:physiology; D013577:Syndrome; D014655:Vascular Resistance / Q000502:physiology