How Is a Fractional Flow Reserve Measured? Center

A fractional flow reserve (FFR) is a procedure done during cardiac catheterization to estimate the degree of blockage in the coronary arteries. It is a guide wire-based procedure that determines the ratio between the maximum achievable blood flow in a diseased blood vessel (coronary artery) and normal maximum flow. Complications include coronary vessel perforation (hole in the blood vessels), embolism (diffused blood clots in the blood vessels), infection in the site, spasm of the blood vessel, kidney failure, heart attack, stroke, and serious arrhythmias (irregular heartbeat). Read more: How Is a Fractional Flow Reserve Measured? Article

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