Novel Echocardiographic Measurements of Right Ventricular-Pulmonary Artery Coupling in Predicting the Prognosis of Precapillary Pulmonary Hypertension.

TAPSE × AcT is a novel, promising, and practicable echocardiographic parameter reflecting RVPAC, which is comparable to TAPSE/sPAP. Moreover, TAPSE × AcT can be a useful parameter in assessing the severity and prognosis of patients with precapillary PH.