Coronary artery bypass graft surgery (CABG) has been used for the treatment of coronary artery disease (CAD) for nearly 50 years, and has been performed for millions of people worldwide. However, little is known about the impact of lifestyle changes, including diet and exercise, on long-term outcomes in patients who have had CABG surgery. While clinical practice guidelines on post-CABG surgery management have been available for nearly 2 decades, evidence regarding secondary prevention behavioral interventions, lifestyle modifications, and self-management to slow progressive worsening of CAD, reduce cardiac hospitalizations, and prevent the need for reoperation is virtually absent from the literature. Diet and exercise are modifiable factors that impact secondary CAD risk.
This article reviews the relevant recent literature on long-term diet and exercise outcomes in patients who have had CABG surgery. The limited available literature showed positive impacts of exercise on psychosocial well-being and physical fitness. Current evidence indicates diet and exercise interventions are effective in the short-term, but intervention effects fade over time. Potential age and gender differences were found across the reviewed studies; however, further research is needed with more rigorous designs to replicate and confirm findings as well as to define optimal management regimens and cost-effective prevention strategies.