Coronary spasm, a pathogenic trigger of vulnerable plaque rupture

Area of Science:

• Cardiovascular Science
• Pathophysiology
• Medical Research

Background:

• Coronary artery spasm is linked to atherosclerotic disease.
• Chronic inflammation can cause smooth muscle cell hypersensitivity, leading to spasm.

Purpose of the Study:

• To explore the pathogenic mechanisms linking coronary artery spasm to vulnerable plaque rupture.
• To investigate the role of spasm as a trigger for cardiovascular events.

Main Methods:

• Literature review of Medline and Pubmed databases.
• Analysis of research on coronary artery spasm, plaque rupture, and clinical manifestations.

Main Results:

• Coronary artery spasm can be directly caused by chronic low-grade inflammation.
• Sudden, intense coronary artery smooth muscle contraction may initiate myocardial infarction and sudden cardiac death.

Conclusions:

• Coronary artery spasm is a potential trigger for vulnerable plaque rupture.
• Spasm can initiate and worsen plaque rupture, contributing to acute cardiac events.