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[Coronary reserve: a dynamic evaluation of coronary circulation]
1Service d'Explorations Fonctionnelles, INSERM U 251, CHU Xavier-Bichat, Paris.
Archives Des Maladies Du Coeur Et Des Vaisseaux
|December 1, 1987
Summary
Coronary reserve measurement using thermodilution assesses coronary artery and microcirculation health. This method evaluates myocardial perfusion in various cardiac conditions and aids in assessing cardiovascular therapy effectiveness.
Area of Science:
- Cardiology
- Physiology
- Medical Imaging
Context:
- Coronary artery disease and microcirculation pathologies require accurate assessment.
- Evaluating coronary reserve is crucial for understanding myocardial perfusion.
- Thermodilution offers a method for measuring coronary sinus blood flow in humans.
Purpose:
- To evaluate coronary pathologies of large vessels and microcirculation.
- To determine flow increase via contrast medium injection or dipyridamole.
- To calculate flow and resistance reserves for comprehensive assessment.
Summary:
- Coronary sinus blood flow was measured using thermodilution in healthy subjects and patients with cardiac/systemic diseases.
- Flow and resistance reserves were calculated using maximal/basal flow and resistance ratios.
- Results provided insights into coronary stenosis effects and microcirculation alterations.
Impact:
- Informs about coronary stenosis impact on myocardial perfusion.
- Highlights microcirculation changes in diseases affecting main coronary arteries.
- Demonstrates utility of pharmacological agents in evaluating cardiovascular therapies.