The pulmonary artery systolic pressure (PASP) can be estimated from the tricuspid valve regurgitant jet velocity as measured on echocardiography.



(1) tricuspid regurgitatant jet velocity in meters per second (m/s)


estimated pulmonary artery systolic pressure in mm Hg = ePASP =

= (4 * ((tricuspid regurgitatant jet velocity in m/s)^2)) + 10



• An estimated PASP >= 40 mm Hg is considered elevated. A PASP of 40 mm Hg corresponds to a tricuspid regurgitatant jet velocity of 2.7 m/s.


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