title: Wedge pulmonary angiography to determine the accuracy of pulmonary wedge pressure.
abstract: Wedge pulmonary angiography was done in 11 patients with acute respiratory failure, to assess the accuracy of pulmonary arterial wedge pressure (WP) as an estimation of left ventricular end-diastolic pressure (LVEDP). The pulmonary artery (PA) catheter tip was placed into a dependent position in the lungs. Although the pulmonary vein was not visualized in 7 of 11 patients, in no case was there a significant difference between WP and LVEDP. When WP is no greater than 15 mm Hg, wedge pulmonary angiography does not reflect the accuracy of WP; however, left ventricular filling pressure can be accurately estimated by WP in most of these patients.
mesh_terms: D000208:Acute Disease; D006439:Hemodynamics; D006801:Humans; D010690:Phlebography; D011654:Pulmonary Edema / Q000000981:diagnostic imaging / Q000503:physiopathology; D011667:Pulmonary Veins / Q000000981:diagnostic imaging*; D011669:Pulmonary Wedge Pressure; D012131:Respiratory Insufficiency / Q000000981:diagnostic imaging / Q000503:physiopathology*; D013318:Stroke Volume