Lipid profiles and framingham risk score in patients with coronary artery bypass graft surgery undergoing cardiac rehabilitation program

Abstract

Coronary artery disease (CAD) is one of the major predictors of future cardiovascular events (CVEs). In addition, biomarkers such as high-sensitivity C-Reactive Protein (hsCRP), fibrinogen, homocysteine, and free fatty acid (FFA) correlate well with a future CVE. The Framingham Risk Score is a gender-specific algorithm used to estimate the 10-year cardiovascular risk of an individual. Cardiac rehabilitation is an instrument of medical management in cardiovascular diseases; beyond prevention, it can improve heart and muscle functioning in patients that were undergoing CABG, and cardiac and vascular adaptation. Over a 2-year period, 120 subjects were randomized and comprehensively evaluated. The mean age of the patients under study was 65.70 ± 9.91 years old. For the Framingham cardiovascular risk score, the mean value in the Phase I was 16.5, while the mean value in Phase III was 10.6. The difference registered after cardiac surgery and the value in 6 months after the onset of cardiac rehabilitation program was important and statistically significant, as p < 0.05. Fibrinogen showed significant phase-to-phase reductions of plasmatic values. Lipid profile values showed a statistically significant decrease. The renal filtration function evaluated by plasma creatinine showed statistically significant improvement and, in terms of absolute values, creatinine level was reduced in a range between 0.2-0.4 mg/dL. Also, it was recorded a significantly lower level of blood urea. By comparing the Phase I and Phase III results, we observed that the median 10-year Framingham cardiovascular risk score was approximately 6% lower (p <0.05), reflecting the survival benefit gained by patients under the intensive cardiovascular recovery program.