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Tricuspid annular plane systolic excursion in chronic thromboembolic pulmonary hypertension before and after pulmonary thromboendarterectomy

Right ventricular function is impaired in chronic thromboembolic pulmonary hypertension (CTEPH). Tricuspid annular plane systolic excursion (TAPSE) and right ventricular fractional area change (RVFAC) have been shown to help assess right ventricular function in pulmonary hypertension. Our goal was to (1) assess TAPSE and RVFAC before and after PTE, and (2) assess correlation of these variables with right heart catheterization data and PVR.