Long-term clinical outcome after surgical or percutaneous coronary revascularization in hemodialysis patients

Area of Science:

• Cardiology
• Nephrology
• Interventional Cardiology

Background:

• Coronary artery bypass grafting (CABG) and percutaneous coronary intervention (PCI) are common revascularization procedures.
• Limited data exists comparing CABG and PCI efficacy in hemodialysis (HD) patients.

Purpose of the Study:

• To compare the long-term clinical outcomes of CABG versus PCI in patients undergoing elective coronary revascularization who also require hemodialysis.
• To evaluate the incidence of major adverse cardiac events (MACE) in this specific patient group.

Main Methods:

• A 10-year follow-up study involving 997 HD patients (210 CABG, 787 PCI).
• Propensity score adjustment was used to control for baseline covariate differences.
• Major adverse cardiac events (MACE) were defined as a composite of all-cause death, non-fatal myocardial infarction (MI), and any revascularization.

Main Results:

• The 10-year freedom from MACE was significantly higher in the CABG group (51.0%) compared to the PCI group (34.8%) (adjusted HR, 0.64; P=0.0003).
• While CABG showed a higher adjusted HR for death in the first 6 months (1.72), it was lower from 6 months onward (0.69).
• CABG demonstrated an advantage for any revascularization compared to drug-eluting stent PCI (adjusted HR, 0.38; P<0.0001), but not for MACE (adjusted HR, 0.86; P=0.33).

Conclusions:

• Coronary artery bypass grafting (CABG) is clinically advantageous compared to percutaneous coronary intervention (PCI) for hemodialysis patients.
• CABG offers improved long-term survival and reduced need for repeat revascularization in this high-risk population.