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Updated: Apr 16, 2026

Left Atrial Stenosis Induced Pulmonary Venous Arterialization and Group 2 Pulmonary Hypertension in Rat
Published on: November 18, 2018
Cor triatriatum: a reversible cause of severe pulmonary hypertension
Michael J Howe1, Michael P Thomas1, Prachi P Agarwal2
1Division of Cardiovascular Medicine, University of Michigan Health System, Ann Arbor, Michigan, USA.
Abstract:
Cor triatriatum sinister is a congenital heart disorder that can lead to progressive dyspnea, pulmonary hypertension, and ultimately right ventricular (RV) failure. We report a case in which symptoms of progressive pulmonary hypertension were initially attributed to asthma, leading to a delayed diagnosis that resulted in suprasystemic pulmonary pressures and RV dysfunction. Rapid symptomatic and hemodynamic improvement was observed after surgical repair, with normalization of pulmonary artery pressures and RV function.
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