[Left main coronary artery stenosis]
Imad Sheiban1, Giuseppe G L Biondi-Zoccai, Claudio Moretti
1Divisione di Cardiologia, Università degli Studi, Ospedale San Giovanni Battista Molinette, Torino. isheiban@yahoo.com
Insights
Percutaneous coronary intervention with drug-eluting stents is effective for treating unprotected left main stenosis, a condition previously considered a contraindication. This approach offers favorable early and mid-term outcomes for patients with coronary artery disease.
Area of Science:
- Cardiovascular Medicine
- Interventional Cardiology
Context:
- Significant stenosis of the unprotected left main coronary artery is a prevalent condition linked to adverse cardiovascular events.
- Historically, unprotected left main stenosis was a contraindication for percutaneous transluminal coronary angioplasty (PTCA).
Purpose:
- To review the clinical management and technical aspects of percutaneous treatment for unprotected left main stenosis.
- To provide an updated perspective based on a decade of experience with this specific interventional procedure.
Summary:
- The advent of drug-eluting stents has shifted the paradigm, enabling percutaneous revascularization for unprotected left main stenosis.
- Multiple studies, including a large meta-analysis, indicate favorable early and mid-term results for PTCA using drug-eluting stents in this patient group.
Impact:
- Drug-eluting stents have expanded treatment options for complex coronary artery disease.
- This review offers insights for interventional cardiologists managing patients with unprotected left main stenosis.
Abstract:
A significant stenosis of the unprotected left main coronary artery remains a common condition and is associated with a high rate of adverse events, both early and at long term. Whereas in the era of balloon-only percutaneous transluminal coronary angioplasty (PTCA) a stenosis of the unprotected left main coronary artery was considered a contraindication to percutaneous revascularization, the introduction of stents, especially the recent development of drug-eluting stents, has convinced several interventional cardiologists to treat percutaneously this subset of patients with coronary artery disease. Several studies are now available on this topic, including a 1200-patient large meta-analysis, most suggesting favorable results for PTCA with drug-eluting stents in patients with unprotected left main stenosis at both early and mid term. The aim of this article is to provide an updated review on the clinical management and technical approach for the percutaneous treatment of unprotected left main stenosis, in light of our 10-year experience with this peculiar percutaneous procedure.
Related Concept Videos
Mitral Stenosis I: Introduction
Mitral Stenosis II: Clinical features and Diagnostic Tests
Cardiac Catheterization III: Left Heart Catheterization
Acute Coronary Syndrome I: Introduction
Acute Coronary Syndrome III: Diagnostic Studies
Coronary Artery Disease III: Clinical Manifestations

