Fig. 1
From: Right ventricular-arterial uncoupling independently predicts survival in COVID-19 ARDS
Coupling of right ventricular function to the pulmonary circulation evaluated by the tricuspid annular plane systolic excursion (TAPSE) to systolic pulmonary artery pressure (PASP) ratio. a Normal echocardiographic phenotype with increased pulmonary artery systolic pressure (PASP), normal tricuspid annulus plane systolic excursion (TAPSE), and preserved TAPSE/PASP. b Typical right heart echocardiographic phenotype with increased PASP, reduced TAPSE, low TAPSE/PASP, and right/left ventricular basal diameter ratio > 1. IVC inferior vena cava