What is left main stem stenosis?

What is left main stem stenosis?

Left main coronary artery (LMCA) stenosis is a relatively infrequent but important cause of symptomatic coronary artery disease. Multiple studies have found LMCA stenosis to be an independent indicator of increased morbidity and mortality rates among patients with coronary artery disease.

Can the left main artery be stented?

Left main coronary artery stenting is typically suitable for patients who are at high risk for surgical complications or have comorbidities.

What percentage of blockage requires a stent?

By clinical guidelines, an artery should be clogged at least 70 percent before a stent should be placed, Resar said. “A 50 percent blockage doesn’t need to be stented,” he said.

What is the importance of the left main stem artery?

Introduction. Left main coronary artery disease is of particular importance because left main stem (LMS) is responsible for 84% of the blood supplied to left ventricle in case of left coronary dominant system [1].

What is distal stenosis?

In a curved artery segment with two moderate stenoses of the same size, the distal stenosis causes a larger pressure drop and a more disturbed flow field in the poststenotic region than the proximal stenosis does.

Are stents worth it?

The meta-analysis showed that stents delivered no benefit over medical therapy for preventing heart attacks or death for patients with stable coronary artery disease. Still, many cardiologists argued, stents improved patients’ pain. It improved their quality of life.

What does the left main artery supply?

The left main coronary artery supplies blood to the left side of the heart muscle (the left ventricle and left atrium). The left main coronary divides into branches: The left anterior descending artery branches off the left coronary artery and supplies blood to the front of the left side of the heart.