Abstract 165: Temporal Trends in FFR Utilization in Patients Undergoing Coronary Angiography: A Population Based Study

Background: Invasive fractional flow reserve (FFR) has emerged as an important tool to identify a subset of patients in whom coronary revascularization may be beneficial. Our objective was to evaluate temporal trends in FFR utilization. Methods: In this population-based study, we identified all coronary angiograms in the CorHealth Ontario Cardiac Registry between January 1st, 2010 to December 31st, 2015. The primary and secondary outcomes were the age-sex adjusted monthly rate of FFR per 100,000 population and per 100 angiograms respectively. Piecewise regression analysis was used to evaluate the temporal trends in FFR utilization, for the entire cohort, and then stratified by indication (stable coronary disease (SCAD) versus acute coronary syndrome (ACS)). Results: The study cohort included 379,688 angiograms, of which 122,571 were for SCAD (32%), and 134,769 were for ACS (35%). FFR was performed in 3.2% of all angiograms (4.6% in SCAD; 2.7% in ACS). Monthly age-sex adjusted FFR utilization rates increas...