Glossary/Coronary Artery Disease

Left Main Disease.

Significant narrowing of the left main coronary artery, which supplies blood to roughly two-thirds of the heart. Considered high-risk because a blockage here threatens a large portion of heart muscle. Often treated with CABG.

Definition

What is left main disease?

Significant narrowing of the left main coronary artery, which supplies blood to roughly two-thirds of the heart. Considered high-risk because a blockage here threatens a large portion of heart muscle. Often treated with CABG.

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