Exercise Capacity According to Coronary Microvascular Dysfunction and Body Composition

Summary

Participation Requirements

Description

We will select the patients with chest pain or ischemic symptoms with non-obstructive coronary artery disease (<50% stenosis) in coronary angiography and preserved ejection fraction (?50%) in echocardiography. All patients will undergo body composition analysis and adenosine stress echocardiography ...

We will select the patients with chest pain or ischemic symptoms with non-obstructive coronary artery disease (<50% stenosis) in coronary angiography and preserved ejection fraction (?50%) in echocardiography. All patients will undergo body composition analysis and adenosine stress echocardiography with the evaluation of coronary artery blood flow by Doppler echocardiography and maximal oxygen consumption (VO2 max) by cardiopulmonary exercise test. Left ventricular end-diastolic pressure will be assessed during coronary angiography. Coronary flow reserve (CFR) is defined as the ratio of peak to baseline mean diastolic velocity of coronary blood flow. The correlation of CFR and body composition with cardiopulmonary exercise capacity will be assessed.

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