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Published on: September 17, 2021
Coronary Artery Spasm: Risk Factors, Pathophysiological Mechanisms and Novel Diagnostic Approaches
Zijie Lin1, Xinyi Lin1, Xin Zhao2
1Department of Forensic Medicine, School of Basic Medical Sciences, Fudan University, 200032 Shanghai, China.
Insights
Coronary artery spasm (CAS) causes heart attacks by temporarily blocking arteries. Recent research clarifies CAS risk factors, mechanisms like inflammation, and improves diagnostic tools for better accuracy.
Area of Science:
- Cardiology
- Vascular Biology
- Medical Diagnostics
Background:
- Coronary artery spasm (CAS) causes myocardial ischemia, often with non-obstructive coronary arteries.
- Understanding CAS risk factors and pathophysiology has advanced significantly.
- New diagnostic methods, including imaging and biomarkers, are emerging.
Purpose of the Study:
- To review current knowledge on CAS risk factors.
- To summarize the pathophysiological mechanisms of CAS.
- To analyze recent advancements in CAS diagnostic approaches.
Main Methods:
- Literature review of research on coronary artery spasm.
- Synthesis of data on risk factors and mechanisms.
- Analysis of diagnostic technologies and biomarkers for CAS.
Main Results:
- CAS involves endothelial dysfunction, vascular smooth muscle hyperreactivity, and adipose tissue inflammation.
- Progress has been made in identifying CAS risk factors.
- Novel diagnostic tools offer improved accuracy and yield.
Conclusions:
- CAS is a critical cause of myocardial ischemia.
- Enhanced understanding of mechanisms and risk factors aids clinical diagnosis.
- Advanced diagnostic approaches improve the accuracy and efficiency of CAS detection.
Abstract:
Coronary artery spasm (CAS) is a transient reversible subtotal or complete occlusion induced by coronary hypercontraction and the critical cause of myocardial ischaemia with non-obstructive coronary arteries. During the past decades, our knowledge of the risk factors and pathophysiological mechanisms of CAS have been increasingly progressed, and various diagnostic approaches, including imaging technologies and novel biomarkers, have been proposed to serve well to diagnose CAS clinically. This review aims to summarize these research progresses on the risk factors of CAS and introduce current knowledge about the mechanisms accounting for CAS, including endothelial dysfunction, vascular smooth muscle cell hyperreactivity, and adventitial and perivascular adipose tissue inflammation. We also gathered the recently evolved diagnostic approaches and analyzed their advantages/disadvantages, in purpose of enhancing the diagnostic yield on the basis of ensuring accuracy.
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