Department of Cardiology Affiliated Hospital of Nantong University Nantong 226001 Jiangsu Province China;
Department of Cardiology Affiliated Hospital of Nantong University Nantong 226001 Jiangsu Province China;
Department of Cardiology Affiliated Hospital of Nantong University Nantong 226001 Jiangsu Province China;
Department of Cardiology Affiliated Hospital of Nantong University Nantong 226001 Jiangsu Province China;
Department of Cardiology Affiliated Hospital of Nantong University Nantong 226001 Jiangsu Province China;
Chronic obstructive pulmonary disease; Pulmonary heart disease; Plasma brain natriuretic peptide; Platelet parameter; Cardiac function; Pulmonary hypertension; Correlation analysis;