Related Experiment Video
Updated: Apr 28, 2026

Surgical Swine Model of Chronic Cardiac Ischemia Treated by Off-Pump Coronary Artery Bypass Graft Surgery
Published on: March 27, 2018
Diet and exercise interventions following coronary artery bypass graft surgery: a review and call to action
Garrett N Coyan1, K M Reeder, James L Vacek
1University of Kansas Medical Center, Kansas City, KS. gcoyan@kumc.edu.
Insights
Diet and exercise interventions show short-term benefits for coronary artery bypass graft (CABG) patients, but long-term effects on coronary artery disease (CAD) outcomes fade over time. More research is needed for optimal secondary prevention strategies.
Area of Science:
- Cardiology
- Preventive Medicine
- Lifestyle Medicine
Background:
- Coronary artery bypass graft (CABG) surgery is a common treatment for coronary artery disease (CAD).
- Long-term outcomes and the impact of lifestyle modifications like diet and exercise post-CABG are not well understood.
- Existing clinical guidelines lack robust evidence on secondary prevention behavioral interventions for CAD patients.
Purpose of the Study:
- To review current literature on the long-term effects of diet and exercise in patients following CABG surgery.
- To identify gaps in knowledge regarding lifestyle interventions for secondary prevention of CAD.
- To explore potential differences in outcomes based on age and sex.
Main Methods:
- Systematic review of existing literature on diet and exercise interventions in CABG patients.
- Analysis of studies focusing on long-term outcomes, psychosocial well-being, and physical fitness.
- Examination of evidence for short-term versus long-term effectiveness of lifestyle modifications.
Main Results:
- Limited literature indicates positive short-term impacts of exercise on psychosocial well-being and physical fitness post-CABG.
- Evidence suggests that the beneficial effects of diet and exercise interventions diminish over time.
- Potential age and sex differences in response to interventions were observed but require further investigation.
Conclusions:
- Diet and exercise interventions are effective in the short term for CABG patients, but long-term efficacy is questionable.
- There is a significant need for more rigorous research to establish optimal, cost-effective secondary prevention strategies.
- Further studies should investigate age and sex-specific responses to lifestyle modifications for improved long-term CAD management.
Abstract:
Coronary artery bypass graft (CABG) surgery has been used for the treatment of coronary artery disease (CAD) for approximately 50 years, and has been performed on millions of people globally. However, little is known about the impact of diet and exercise on long-term outcomes of patients who have undergone CABG surgery. Although clinical practice guidelines on the management of this patient population have been available for approximately 2 decades, evidence regarding secondary prevention behavioral interventions, lifestyle modifications and self-management to slow the progressive decline of CAD, reduce cardiac hospitalizations, and prevent reoperation remains virtually absent from the literature. Diet and exercise are modifiable factors that affect secondary CAD risk. This article reviews the relevant current literature on long-term diet and exercise outcomes in patients who underwent CABG. The limited available literature shows the 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 effects fade over time. Potential age and sex differences were found across the reviewed studies; however, further research is needed with more rigorous designs to replicate and confirm findings, and to define optimal management regimens and cost-effective prevention strategies.
Related Concept Videos
Coronary Artery Disease V: Interprofessional Care
Peripheral Artery Disease V: Postoperative Nursing Management
Coronary Artery Disease IV: Preventive Measures
Exercise and Cardiovascular Response
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
Atherosclerosis III: Management
Peripheral Artery Disease III: Interprofessional Care

