• Iosif Xenogiannis, Ilias Nikolakopoulos, Oleg Krestyaninov, Dmitrii Khelimskii, Jaikirshan J Khatri, Anthony H Doing, Phil Dattilo, Khaldoon Alaswad, Catalin Toma, Abdul M Sheikh, Farouc A Jaffer, Brian K Jefferson, Taral Patel, Raj H Chandwaney, Wissam Jaber, Habib Samady, Mitul Patel, Ehtisham Mahmud, James Choi, Michalis Koutouzis, Ioannis Tsiafoutis, Michael Megaly, Mohamed Omer, Evangelia Vemmou, Bavana V Rangan, Santiago Garcia, Shuaib Abdullah, Subhash Banerjee, Nicholas Burke, Emmanouil S Brilakis, and Dimitri Karmpaliotis.
• Minneapolis Heart Institute, 920 E 28th Street #300, Minneapolis, Minnesota 55407 USA. esbrilakis@gmail.com.
• J Invasive Cardiol. 2020 Nov 1; 32 (11): 433-439.

BackgroundThe impact of chronic total occlusion (CTO) percutaneous coronary intervention (PCI) on angina and subsequent incidence of major adverse cardiovascular event (MACE) rate remains controversial.MethodsWe compared patient- reported angina change and the incidence of MACE (defined as death, myocardial infarction [MI], target-vessel revascularization) between successful vs failed CTO-PCI in 1612 patients participating in a large, multicenter registry.ResultsCTO-PCI was successful in 1387 patients (86%). Compared with failed CTO-PCI, successful CTO-PCI patients were less likely to have history of heart failure (33% vs 41%; P=.02), prior MI (49% vs 62%; P<.01), or prior coronary revascularization (63% vs 71% [P=.03] for PCI and 30% vs 40% [P<.01] for coronary artery bypass graft surgery). Patients in the successful CTO-PCI group had lower J-CTO scores (2.4 ± 1.3 vs 3.1 ± 1.1; P<.01) and lower PROGRESS-CTO Complications scores (1.1 ± 1.0 vs 1.6 ± 1.0; P<.01). After a mean follow-up of 181 ± 153 days, patients with successful PCI were more likely to have angina improvement (83% vs 38%; P<.01) and had lower incidence of 1-year MACE (8% vs 15%; P<.01), death (3% vs 7%; P<.01), and MI (2% vs 4%; P=.02). On multivariable analysis, however, CTO-PCI success was not independently associated with MACE.ConclusionCompared with failed CTO-PCI, successful CTO-PCI is associated with better angina improvement and lower incidence of MACE (on univariable analysis) during follow-up.

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