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CABG reduces all-cause death and repeat revascularisation risk in patients with diabetes and CKDCABG Shows Lower Risk for Patients with Diabetes and CKD

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Key Takeaway
Consider CABG over PCI for patients with multivessel disease, diabetes, and CKD to reduce death and revascularisation.

This systematic review and meta-analysis included 10594 patients with multivessel coronary disease and multiple long-term conditions, including diabetes and chronic kidney disease (CKD). The study compared Coronary Artery Bypass Grafting (CABG) to Percutaneous Coronary Intervention (PCI).

For patients with both diabetes and CKD, CABG was favored over PCI in reducing all-cause death and repeat revascularisation. Patient reported outcomes also favored CABG in patients with diabetes. No treatment effect was observed for myocardial infarction (MI) or stroke. Furthermore, no differences were found regarding mortality or stroke based on female sex or older age.

Safety and tolerability data were not reported. The study noted that trials were unblinded, which may introduce bias. Additionally, data were not reported for peripheral vascular disease or frailty. The GRADE certainty of evidence was moderate for patients with diabetes, but was generally low to very low for other outcomes. These findings suggest a potential benefit for CABG in specific high-risk subgroups, though the overall evidence base for many outcomes remains weak.

How this fits prior evidence

How this fits prior evidence: This finding addresses a gap in the management of patients with complex comorbidities. While previous coverage noted that vitamin D deficiency is associated with higher odds of CKD progression and that patients with diabetes and comorbid depression face higher mortality risks, this study specifically addresses the surgical versus percutaneous intervention choice for those with concurrent diabetes and CKD.

A systematic review and meta-analysis looked at 10,594 patients with multivessel coronary disease and multiple long-term conditions. The study compared Coronary Artery Bypass Grafting (CABG) to Percutaneous Coronary Intervention (PCI) to see which treatment worked better for specific groups.

For patients who also had diabetes and chronic kidney disease (CKD), CABG was associated with a lower risk of all-cause death and a lower risk of needing repeat revascularization compared to PCI. Patients with diabetes also reported better outcomes following CABG. However, the study found no significant difference between the two treatments regarding heart attacks or strokes. These results were consistent regardless of the patient's age or sex.

It is important to note that the evidence for these findings is generally low to very low, except for patients with diabetes where the certainty was moderate. The study also had limitations, such as not having data on frailty or peripheral vascular disease. Because these results come from a meta-analysis of existing trials, they should be discussed with a doctor to determine the best treatment plan for a specific medical situation.

What this means for you:
CABG may reduce death and repeat procedures for patients with heart disease, diabetes, and kidney disease.

Common questions

Is CABG better for patients with diabetes?

The study found that CABG was associated with better patient-reported outcomes for people with diabetes. The evidence for this specific group was rated as moderate certainty. You should talk to your doctor about how this applies to your specific health needs.

Does CABG reduce the risk of death for those with kidney disease?

For patients with both heart disease and chronic kidney disease (CKD), CABG was associated with a lower risk of all-cause death compared to PCI. However, the overall certainty of the evidence for this finding was low to very low.

Are there differences in outcomes for men and women?

The study found no significant difference in outcomes for all-cause death or stroke based on the patient's sex or age. Both men and women saw similar results in these specific categories during the comparison.

Study Details

Study typeRct
Sample sizen = 10,594
EvidenceLevel 2
PublishedSep 2026
View Original Abstract ↓
Introduction People presenting for multivessel coronary revascularisation commonly have multiple long-term conditions that influence prognosis. The aim of this study was to review the evidence for revascularisation choices in these groups. Methods Randomised trials of Coronary Artery Bypass Grafting (CABG) versus Percutaneous Coronary Intervention (PCI) reporting outcomes by pre-specified comorbidities were included. Treatment effects were estimated using inverse variance random effects models and presented as Risk Ratios (95% Confidence Intervals). The certainty of evidence for outcomes was assessed using Grading of Recommendations Assessment, Development and Evaluation (GRADE). Results 19 studies from nine RCTs with 10,594 participants were included. Reported baseline comorbidities included diabetes (49%), CKD (25%), LVSD (9%), female sex (14%), and older age (40%). Trials were unblinded, resulting in some bias concerns. For people with diabetes and CKD, CABG reduced the risks of all-cause death and repeat revascularisation, with no treatment effect on MI or stroke, versus PCI. There was no difference in mortality or stroke for female sex, or older age. No data was reported for people with peripheral vascular disease or frailty. Patient reported outcomes favoured CABG in people with diabetes. GRADE showed that the certainty of the evidence was generally Low to Very Low with the exception of people with diabetes (Moderate Certainty). Conclusion There is a knowledge gap with respect to the risks and benefits of CABG versus PCI in people with common comorbidities. Registration PROSPERO CRD420251032665
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