How to study coronary microvascular dysfunction and its clinical relevance.

Area of Science:

• Cardiology
• Cardiovascular Research
• Pathophysiology

Background:

• Acute coronary syndromes (ACS) and myocardial infarction (MI) often occur in patients without critical coronary artery stenosis.
• This challenges the long-held view of stenosis severity as the primary driver of ischemic heart disease.
• Research is shifting focus beyond plaque burden to other contributing factors.

Purpose of the Study:

• To critically review theoretical and technical approaches for studying coronary microcirculation in ischemic heart disease.
• To highlight the potential role of coronary microcirculation in the pathophysiology of ischemic heart disease.
• To provide insights into the current limitations and future directions in evaluating coronary microcirculation.

Main Methods:

• Review of existing literature on coronary microcirculation and ischemic heart disease.
• Critical analysis of theoretical frameworks and technical methodologies.
• Discussion of experimental models and clinical evaluation challenges.

Main Results:

• Coronary microcirculation is increasingly recognized as a potential cofactor in ischemic heart disease manifestations.
• Current clinical evaluation methods for coronary microcirculation face significant methodological limitations.
• Experimental models for studying coronary atherosclerosis and ischemic heart disease remain inadequate.

Conclusions:

• The precise nature and mechanisms of coronary microcirculation's involvement in ischemic heart disease remain largely speculative.
• Further advancements in theoretical approaches and technical methodologies are crucial for understanding its role.
• This review aims to equip readers with knowledge to better assess the significance of coronary microcirculation in ischemic heart disease.