Abstract 20035: Impact of Sex on Outcomes of Chronic Total Occlusion Percutaneous Coronary Intervention: Insights From a Multicenter U.S. Registry

IntroductionThe effect of sex on in-hospital outcomes of chronic total occlusion (CTO) percutaneous coronary intervention (PCI) has received limited study.MethodsUsing data collected from 14 experienced U.S. centers between 2012 and 2016, we compared the clinical, angiographic, and procedural characteristics of 1,753 CTO PCIs performed in 1,718 patients by sex.ResultsMost patients were men (84.7%) with mean age 65.3±10 years. As compared with women, men presented for CTO PCI at a younger age (65.0±10 vs. 66.8±11 years, p=0.022), had higher J-CTO (2.54±1.23 vs. 2.35±1.28, p=0.045) and Progress-CTO (1.05±1.0 vs. 0.875±0.94, p=0.005) scores, longer lesions [30.0 (20.0, 50.0) mm vs. 28.0 (15.0, 40.0) mm, p=0.034], and more moderate to severe tortuosity (36.9% vs. 28.8%, p=0.016). They were also more likely to have had prior coronary artery bypass graft surgery (36.4% vs. 30.0%, p=0.046) and to undergo CTO PCI using the retrograde approach (41.0% vs. 32.6%, p=0.010). The final successful crossing strategy was more likely to be antegrade wire escalation in women (40.8% vs. 54.4%, p