Fractional Flow Reserve (FFR) Stability in Non-Culprit Vessels at ST Elevation Myocardial Infarction(STEMI)

It has been shown that if it can be accomplished within a 90 minute \"door to balloon\" time, opening an artery in an acute heart attack situation (ST elevation myocardial infarction or STEMI) is best treated with balloon angioplasty and stenting (percutaneous coronary intervention or PCI). In these situations, there may be narrowings other than the one causing the heart attack (culprit) and studies have shown that delaying treatment of other narrowings for follow-up procedure is better than intervening at the time of the acute MI.