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Interventional Diagnostic Procedure: A Practical Guide for the Assessment of Coronary Vascular Function
Published on: March 15, 2022
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Coronary provocative tests in the catheterization laboratory: Pathophysiological bases, methodological considerations
Rocco A Montone1, Maria Chiara Meucci2, Antonio De Vita2
1Department of Cardiovascular Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.
Atherosclerosis
|December 28, 2020
Summary
Coronary provocative tests help diagnose myocardial ischemia when obstructive coronary artery disease is absent. These tests guide tailored therapies and offer prognostic insights, despite limited current use.
Area of Science:
- Cardiology
- Diagnostic Testing
Background:
- Obstructive coronary artery disease (CAD) is the traditional focus for angina and myocardial ischemia.
- A significant percentage of patients (30-50%) lack obstructive CAD upon angiography, suggesting other causes of ischemia.
- Coronary vasomotor disorders (epicardial and microvascular) are implicated but challenging to diagnose due to transient symptoms.
Purpose of the Study:
- To review the pathophysiological basis of coronary provocative tests.
- To highlight the clinical, prognostic, and therapeutic implications of these diagnostic tools.
- To underscore the importance of investigating functional mechanisms in myocardial ischemia.
Main Methods:
- Review of existing literature on coronary provocative tests.
- Explanation of pathophysiological mechanisms underlying myocardial ischemia.
- Discussion of diagnostic challenges and the role of provocative testing.
Main Results:
- Provocative tests can identify coronary vasomotor disorders as a cause of myocardial ischemia.
- These tests provide crucial information for tailoring patient therapies.
- Studies indicate significant prognostic value associated with provocative testing.
Conclusions:
- Coronary provocative tests are valuable for diagnosing ischemia in patients without obstructive CAD.
- Despite their utility, clinical adoption remains limited, restricting patient benefit.
- Further integration of these tests can improve patient management and outcomes.
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