The tricuspid annular plane systolic excursion/ PASP ratio’s accuracy and validity in assessing the right ventricular function: A narrative review

Abstract

The tricuspid annular plane systolic excursion (TAPSE) (transthoracic apical two?chamber stretch) and pulmonary artery systolic pressure (PASP) ratio is a measure of cardiac function that is used to assess left ventricular systolic function. PASP is typically measured using a catheterization procedure, in which a small tube is inserted into a blood vessel and advanced to the pulmonary artery. A TAPSE/PASP ratio higher than 0.36 mm/mmHg has been shown in several studies to be a good sign of normal or generally well?maintained right ventricular function. It is important to note that the TAPSE/PASP ratio should be interpreted in the context of other clinical findings and should not be used as the sole indicator of cardiac function. A decrease
in the TAPSEpulmonary arterial systolic pressure (PASP) ratio (i.e., (RV)?arterial uncoupling), which quantitatively depicts the function of the RV, was detected in patients with heart failure. In pulmonary arterial hypertension patients, TAPSE/PASP
is linked to hemodynamics and functional class. In diseases impacting right cardiac function, the TAPSE/PASP may also be beneficial. The purpose of this review is to demonstrate how the TAPSE/PASP impacts how the (RV) functions. We believe that
this is the first review on the topic written.