Two-dimensional echocardiographic assessment of the right ventricle in patients with chronic obstructive lung disease.
A consecutive series of 40 patients (39 men, one woman; mean age 54.1 +/- 8.2 years) with chronic obstructive lung disease (COLD) underwent right heart catheterization and 2-D echocardiographic examination within 72 hr. An adequate 2-D echocardiographic study was obtained in 32 patients (80 percent) using the apical and/or subcostal views. Mean pulmonary artery pressure at rest and during exercise were correlated with right ventricular diameters and areas in end-systole and end-diastole (r = 0.63 to 0.73). Correlations between right ventricular free wall thickness and pulmonary artery pressure were weak (r = 0.51 and 0.57). Right ventricular end-diastolic pressure was also weakly correlated with right ventricular dimensions (r = 0.45 to 0.51), whereas right ventricular area fractional shortening was not correlated with hemodynamic parameters. Patients with previous episode of right heart failure had larger right ventricles than those without such episodes. Thus, 2-D echocardiography appears useful to study the right heart chambers in patients with COLD.
D000328:Adult; D000368:Aged; D006328:Cardiac Catheterization; D006332:Cardiomegaly / Q000150:complications / Q000175:diagnosis*; D004452:Echocardiography / Q000379:methods*; D005260:Female; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000150:complications / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction; D011669:Pulmonary Wedge Pressure