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In this 64-year-old man with chronic obstructive pulmonary disease, the tricuspid regurgitant jet velocity of 3.08 m/s predicts a right ventricular to right atrial pressure gradient (TRPG) of 38 mmHg. In combination with assessment of right atrial pressure (RAP), based on the respiratory variation in the size of the inferior vena cava, the estimated pulmonary systolic pressure (PASP) in this patient is 43 mmHg.
