Relationship of Pulmonary Artery-Wedge Pressure to Left Atrial Pressure in Man
The pulmonary artery-wedge and left atrial pressures were recorded simultaneously in 11 patients during a control state, during norepinephrine infusion, as well as during positive and negative intra-alveolar pressures. A good correlation (r = 0.95) found between the two pressures permits the use of corrected pulmonary artery-wedge pressure in calculation of pulmonary vascular resistance under control and test conditions.
- Received March 5, 1962.
- © 1962 American Heart Association, Inc.