Abstract: Objective To clarify the role of waist circumference (WC) in estimating organ damage and assessing the prognosis in
young and middle-aged patients with cardiovascular disease undergoing cardiac rehabilitation program (CRP). Methods We
recruited 147 young and middle-aged patients with cardiovascular disease to participate in the CRP for 4 or 5 weeks. The
baseline clinical data and results of routine fasting blood test and ultrasonic cardiography were evaluated for these patients.
Results WC had a linear correlation with the indices reflecting cardiac structure alteration (LVSd and LVPWd) of the patients
after CRP but showed a negative correlation with their HDL-C levels. The fasting blood glucose (FBG) and serum uric acid
(UA) levels showed a positive correlation with WC before CRP but not after CRP. Conclusion WC monitoring allows accurate
assessment of organ damage in patients undergoing CRP after cardiovascular disease and has special value in evaluating the
changes in cardiac structure and function.