DEFINE-FLOW: If FFR Is Abnormal and CFR Is Intact, Let FFR Guide Revascularization Decision
Operators should continue to use the fractional flow reserve (FFR) cutoff of ≤0.8 in deciding to revascularize a lesion, even with an intact coronary flow reserve (CFR) >2.That is the take-home message from the DEFINE-FLOW observational study, presented Friday at the TCT Connect virtual conference.