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