Evaluation of patients with minimally obstructive coronary artery disease and angina
D Hasdai1, C R Cannan, V Mathew
1Division of Cardiovascular Diseases, Mayo Clinic, Rochester, MN 55905, USA.
Insights
Abnormal coronary vasomotor regulation, not just vessel blockage, is key in angina with minimal coronary artery disease. This review explores clinical approaches for managing this condition.
Area of Science:
- Cardiology
- Vascular Biology
- Clinical Medicine
Background:
- Atherosclerotic coronary artery disease (CAD) progressively damages coronary vessels.
- Traditional focus has been on morphological changes impacting blood flow.
- Emerging evidence highlights abnormal coronary vasomotor regulation in CAD.
Purpose of the Study:
- To outline a clinical approach for patients presenting with angina pectoris.
- To address patients with minimally obstructive coronary artery disease.
- To integrate current knowledge of coronary vasomotor regulation into clinical practice.
Main Methods:
- Review of current literature on coronary vasomotor regulation.
- Analysis of the pathophysiology of angina pectoris in minimally obstructive CAD.
- Development of a clinical strategy based on vasomotor dysfunction.
Main Results:
- Abnormal coronary vasomotor tone may precede or coincide with morphological changes in CAD.
- Vasomotor dysregulation is implicated in the pathophysiology of angina in patients with risk factors and minimal obstruction.
- Understanding vasomotor control is crucial for diagnosing and managing these patients.
Conclusions:
- Clinical evaluation of angina should consider vasomotor abnormalities, especially in early or minimally obstructive CAD.
- A targeted approach incorporating vasomotor regulation knowledge can improve patient management.
- Further research into coronary vasomotor mechanisms is warranted for comprehensive CAD care.
Abstract:
Atherosclerotic coronary artery disease is a progressive process adversely affecting the integrity of the coronary vasculature. In past years, most studies have focused on the morphological changes leading to compromised coronary blood flow in atherosclerosis. However, in recent years it has become apparent that abnormal coronary vasomotor regulation may precede or accompany gross morphological changes in coronary atherosclerotic disease. In fact, the pathophysiology of angina pectoris in many patients with risk factors for atherosclerosis and minimally obstructive disease may involve abnormal coronary vasomotor tone regulation. The aim of the present article is to describe a clinical approach to patients with angina pectoris and minimally obstructive coronary artery disease based on current knowledge of coronary vasomotor regulation.
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