Modality Selection for the Revascularization of Left Main Disease

Area of Science:

• Cardiology
• Interventional Cardiology
• Cardiac Surgery

Background:

• Severe left main (LM) disease management is controversial, with evolving evidence influencing treatment choices.
• Patient selection for coronary artery bypass grafting (CABG) or percutaneous coronary intervention (PCI) depends on clinical risk (STS score) and lesion complexity (SYNTAX score).

Purpose of the Study:

• To review current evidence and guidelines for managing severe left main disease.
• To discuss the evolving role of PCI and CABG, including new stenting techniques and patient selection criteria.

Main Methods:

• Analysis of recent randomized clinical trials comparing CABG and PCI for LM disease.
• Review of European and American guidelines for revascularization decisions.
• Consideration of patient clinical characteristics and coronary lesion complexity (SYNTAX score).

Main Results:

• Early outcomes (myocardial infarction, stroke) often favored PCI or showed no difference compared to CABG.
• Late outcomes from recent trials show discordant results, necessitating further follow-up.
• PCI may be preferred for low/intermediate SYNTAX scores, especially in high-risk surgical patients.

Conclusions:

• Individualized revascularization decisions for severe LM disease require a multidisciplinary heart team approach.
• Treatment choice should integrate patient factors, lesion complexity, and evolving clinical evidence.
• Further follow-up from recent trials is crucial for definitive treatment recommendations.