Myocardial Capillaries and Coronary Flow Reserve

Myocardial capillaries and coronary flow reserve.

he general assumption among cardiologists is that myoardial ischemia occurs only in the presence of obstructive oronary artery disease. This is based on the misconception hat abnormal coronary flow reserve (CFR) is associated nly with coronary stenosis and results from the increased esistance offered by the stenosis. We showed some time ago hat when the normal coronary vasculature is maximally ...

Coronary collateral circulation and myocardial blood flow reserve.

This study was undertaken to assess the effect of collateral circulation on myocardial blood flow (MBF) reserve (ability to increase myocardial blood flow with a stress that increases myocardial oxygen requirements). One hundred patients had MBF measured at rest and after isoproterenol. After classification by anatomic severity of coronary artery disease (CAI), the groups were further compared ...

Predicting Myocardial Functional Recovery After Acute Myocardial Infarction: Relationship Between Myocardial Strain and Coronary Flow Reserve

BACKGROUND AND OBJECTIVES The purpose of this study was to evaluate the relationship between myocardial strain and coronary flow reserve (CFR) in the prediction of myocardial functional recovery after acute myocardial infarction (AMI). SUBJECTS AND METHODS Consecutive patients with anterior ST elevation AMI were analyzed. Left ventricular (LV) strain, determined by 2-dimensional speckle track...

Myocardial Blood Flow and Flow Reserve

Background. Aging is associated with changes of the systolic blood pressure that may increase cardiac work and myocardial blood flow at rest and reduce the myocardial flow reserve. This might be misinterpreted as age-related impairment of the coronary vasodilator capacity. Methods and Results. Myocardial blood flow was quantified at rest and after administration of intravenous dipyridamole in 4...

Coronary flow reserve.