title: Differences in pulmonary artery wedge pressures obtained by balloon inflation versus impaction techniques.
mesh_terms: D000368:Aged; D000800:Angioplasty, Balloon; D006328:Cardiac Catheterization / Q000379:methods*; D004562:Electrocardiography; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011669:Pulmonary Wedge Pressure