Right ventricular pressure-volume loop produced with simultaneous application of three-dimensional echocardiography and high-fidelity micromanometry in a patient with pulmonary arterial hypertension.

Accurate assessment of right ventricular (RV) function has received a growing attention. Pressure-volume (PV) loop analysis is the gold standard method for evaluating RV function; however, it is not widely employed because of its invasive nature and complexity. The present report is the first to have drawn a RV PV loop in a patient with pulmonary hypertension, with a simultaneous recording of RV pressure and volume using high-fidelity micromanometry and three-dimensional echocardiography. This allows for less invasive and simple assessment of RV function, potentially promoting better understanding and management of pulmonary hypertension and other cardiovascular diseases.