TCT-230 Myocardial Ischemia Is Present and Mostly Reversible in Patients With a Chronic Total Occlusion and a Viable Perfusion Territory: The DISTAL CTO Study

The highest benefit of revascularization is found in patients with very low fractional flow reserve (FFR). In chronic total occlusion (CTO) patients, instant wave-free ratio (iFR, Philips) may be more appropriate to evaluate ischemia as it does not require maximal microvascular vasodilation, which