Key result
Off-pump bypass surgery was associated with significantly greater improvement in metabolic equivalents (METs) following cardiac rehabilitation compared to on-pump surgery (p=0.001), with no significant differences in quality of life or psychological outcomes.
Why the study?
Does the outcome of cardiac rehabilitation differ between patients who underwent off-pump versus on-pump coronary bypass surgery?
Cohort (n=420)
No
Does the outcome of cardiac rehabilitation differ between patients who underwent off-pump versus on-pump coronary bypass surgery?
Cardiac rehabilitation yields similar improvements in quality of life and psychological status regardless of CABG technique, though off-pump patients may achieve greater gains in exercise capacity.
Off-pump CABG was associated with greater METs gains after CR; leaves open differential effects on quality of life or psychological outcomes.
BACKGROUND: A few studies have compared the cardiac rehabilitation (CR) outcome between those who undergo conventional on-pump bypass surgery and off-pump surgery. We compared this outcome among the patients differentiated by the On-pump and off-pump surgical procedures about cardiovascular variables and psychological status. METHODS: This longitudinal study recruited 318 and 102 consecutive patients who had undergone CABG (on-pump surgery, n = 318 and off-pump surgery, n = 102) and been referred to the CR clinic. RESULTS: The off-pump surgery patients had more improvement in their metabolic equivalents (METs) value. The physical and mental components of health-related quality of life (QOL) (based on SF-36 questionnaire) as well as depression-anxiety (based on Costello-Comrey Depression and Anxiety Scale) were notably improved in the two study groups after the CR program, while changes in the QOL components scores and also depression-anxiety score were not different between the off-pump and on-pump techniques. CONCLUSIONS: Regarding QOL and psychological status, there were no differences in the CR outcome between those who underwent off-pump bypass surgery and those who underwent on-pump surgery; nevertheless, the off-pump technique was superior to the on-pump method on METs improvement following CR.
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Arefizadeh et al. (2017) conducted a cohort in Coronary artery disease post-CABG (n=420). Off-pump coronary artery bypass surgery vs. On-pump coronary artery bypass surgery was evaluated on Metabolic equivalents (METs) after cardiac rehabilitation (p=0.001). Off-pump bypass surgery was associated with significantly greater improvement in metabolic equivalents (METs) following cardiac rehabilitation compared to on-pump surgery (p=0.001), with no significant differences in quality of life or psychological outcomes.
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