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Incremental value of RAP, TAPSE and RV direct flow for discriminating PAH with intermediate and high risk score. Note the marked increase in the cumulative prognostic information provided by RV direct flow over the presence of abnormal TAPSE added to RAP. RAP right atrial pressure, TAPSE tricuspid annular plane systolic excursion, RV right ventricular, PAH pulmonary arterial hypertension
