Left Main Coronary Artery Disease in Diabetics: Percutaneous Coronary Intervention or Coronary Artery Bypass...

Area of Science:

• Cardiology
• Interventional Cardiology
• Cardiac Surgery

Background:

• The optimal revascularization strategy for patients with left main disease (LMD) remains debated.
• Percutaneous coronary intervention (PCI) is generally accepted for low-to-intermediate anatomic complexity, while coronary artery bypass grafting (CABG) is suitable for all.
• Uncertainty exists regarding PCI's safety and efficacy in complex LMD, particularly in diabetic patients.

Purpose of the Study:

• To evaluate the relative safety and efficacy of PCI versus CABG for myocardial revascularization in patients with LMD.
• To specifically address the controversial use of PCI in diabetic patients with complex LMD.

Main Methods:

• Review of existing trial data and subgroup analyses comparing PCI and CABG for LMD.
• Analysis focused on outcomes in diabetic patients with varying degrees of LMD complexity and comorbidities.
• Consideration of limitations including heterogeneous methodologies and exclusion criteria in prior studies.

Main Results:

• CABG demonstrates superiority over PCI in diabetic patients with LMD when the SYNTAX score is >33, or in cases of distal bifurcation or multivessel disease.
• PCI may be a viable option for diabetic patients with less complex LMD or those with limited life expectancy or high surgical risk.

Conclusions:

• Coronary artery bypass grafting (CABG) is generally preferred for diabetic patients with complex left main disease (LMD).
• Percutaneous coronary intervention (PCI) can be considered for select diabetic patients with less extensive disease or significant comorbidities impacting surgical risk.