Effects of Bariatric Surgery on Cardiac and Vascular Structure and Function in Obesity

This is a prospective cohort study which aims to explore the effect of bariatric surgery on cardiac and vascular structure and function in obesity. Enrolled patients will receive the following examinations before surgery and 3,6,12 month after the bariatric surgery: 24-h central and brachial ambulatory blood pressure monitoring, PWV, echocardiography, vascular endothelial function, hemodynamic including cardiac output and peripheral vascular resistance and so on. We compare these data before and after surgery in order to evaluate effectiveness of bariatric surgery in the cardiac and vascular structure and function.