Practical Considerations of Fractional Flow Reserve Utilization to Guide Revascularization

Area of Science:

• Cardiovascular Medicine
• Interventional Cardiology
• Physiology

Background:

• Invasive angiography is the standard for diagnosing obstructive coronary artery disease (CAD).
• Visual assessment of stenosis in angiography often poorly correlates with actual impact on myocardial perfusion.
• A need exists for a method to assess the functional significance of epicardial stenosis.

Purpose of the Study:

• To provide a pragmatic understanding of the physiologic principles guiding Fractional Flow Reserve (FFR) measurement.
• To elucidate the nuances and landmark investigations of FFR.
• To discuss the utility and limitations of FFR in common clinical scenarios.

Main Methods:

• Review of the physiologic basis of FFR.
• Analysis of key clinical trials and investigations utilizing FFR.
• Discussion of FFR application in diverse clinical contexts.

Main Results:

• FFR provides a direct measure of the hemodynamic consequence of epicardial stenosis.
• Landmark studies demonstrate FFR's ability to guide revascularization decisions.
• FFR measurement has specific advantages and limitations in various clinical situations.

Conclusions:

• FFR is a crucial tool for assessing the physiologic significance of coronary stenoses.
• Understanding FFR principles and applications improves clinical decision-making in CAD management.
• FFR complements traditional angiography by providing functional information.