Combined techniques

In theory, echocardiographic measures of right ventricular volume may be combined with measurement of right ventricular pressure (either direct or from Doppler-derived continuous right ventricular pressure recordings using tricuspid regurgitation jets and the Bernoulli equation) to construct right ventricular pressure-volume relationships.

Combined use of a right ventricular pressure transducer and conductance catheter to measure right ventricular end-systolic volume would allow continuous right ventricular end-systolic pressure-volume relationship monitoring.

Use of the pulmonary artery flotation catheter to calculate right ventricular end-systolic volume and measure dichrotic notch pressure offers simplicity, low cost, easily repeatable measurements, and the use of monitoring equipment already in use.

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