Evidence-based Management of Left Main Coronary Artery Disease
Gabriel Torres-Ruiz1,2, Nuria Mallofré-Vila1,2, Paola Rojas-Flores1,2
1Department of Cardiology, Parc Taulí Hospital Universitari Sabadell, Spain.
Insights
Revascularisation for left main coronary artery disease (LMCAD) remains challenging. While coronary artery bypass grafting (CABG) is standard, percutaneous coronary intervention (PCI) is a feasible alternative for selected patients.
Area of Science:
- Cardiovascular Medicine
- Interventional Cardiology
Background:
- Left main coronary artery disease (LMCAD) poses significant risks.
- Revascularisation is crucial for improving survival in most LMCAD patients.
Purpose of the Study:
- To review key studies comparing coronary artery bypass grafting surgery (CABG) and percutaneous coronary intervention (PCI) for LMCAD.
- To analyze the evolving treatment strategies for LMCAD.
Main Methods:
- Systematic review of randomized clinical trials and meta-analyses.
- Analysis of studies comparing CABG versus PCI in LMCAD patients.
Main Results:
- Controversial results exist between CABG and PCI in LMCAD treatment.
- PCI is becoming a viable alternative, especially for patients with comorbidities or contraindications to CABG.
Conclusions:
- The optimal revascularisation strategy for LMCAD requires careful consideration of coronary anatomy, clinical factors, and patient preferences.
- Guidelines support CABG as standard, but advancements in PCI offer a feasible alternative in specific patient groups.
Abstract:
Left main coronary artery disease (LMCAD) is associated with high morbidity and mortality due to the large myocardial mass at risk. Although medical treatment may be an option in selected low-risk patients, revascularisation is recommended to improve survival in the majority of patients presenting with a significant left main stenosis. In the past decade, multiple randomised clinical trials and meta-analyses have compared coronary artery bypass grafting surgery (CABG) versus percutaneous coronary intervention (PCI), finding controversial results. The strategy for LMCAD revascularisation is still challenging. Coronary anatomy complexity, clinical features and patient preferences are key elements to be considered by the heart team. The current guidelines define CABG as standard therapy, but the continuous improvements in PCI techniques, the use of intracoronary imaging and functional assessment make PCI a feasible alternative in selected patients, particularly in those with comorbidities and contraindications to CABG. This review analyses the most important studies comparing CABG versus PCI in patients with LMCAD.
