Outcomes of successful vs. failed contemporary chronic total occlusion percutaneous coronary intervention

Michael Megaly, Mahmoud Khalil, Mir B. Basir, Margaret B. McEntegart, James C. Spratt, Masahisa Yamane, Etsuo Tsuchikane, Bo Xu, Khaldoon Alaswad, Emmanouil S. Brilakis

Research output: Contribution to journalArticlepeer-review

Abstract

Background: There are limited contemporary data on the impact of success vs. failure on the outcomes of chronic total occlusion (CTO) percutaneous coronary intervention (PCI). Methods: We conducted a systematic review and a meta-analysis of contemporary studies that compared the outcomes in patients who underwent successful vs. failed contemporary (2010 onwards) CTO PCI. We performed a sensitivity analysis limited to studies that started enrollment after the publication of the hybrid algorithm in 2012. Results: We included five studies with a total of 6,084 patients (successful CTO PCI n = 4,861, failed CTO PCI n = 1,223). During a median follow-up time of 12 months (range 6–60 months), successful CTO PCI was associated with a lower risk of major adverse cardiovascular events [OR: 0.61, 95% CI (0.41, 0.92), p = 0.02, I2 = 63%] and all-cause death [OR: 0.57, 95% CI (0.33, 0.99), p = 0.05, I2 = 60%]. Both groups had similar risk of myocardial infarction (MI) [OR 0.69, 95% CI (0.43, 1.10), p = 0.38, I2 = 80%], target vessel revascularization (TVR) [OR: 0.56, 95% CI (0.25, 1.27), p = 0.17, I2 = 80%], and stroke [OR: 0.52, 95% CI (0.14, 1.91), p = 0.33, I2 = 0%]. Conclusion: In contemporary practice, successful CTO PCI was associated with a lower incidence of MACE driven by lower all-cause mortality compared with failed CTO PCI at a median follow-up of 1 year.

Original languageEnglish (US)
JournalCardiovascular Intervention and Therapeutics
DOIs
StateAccepted/In press - 2021

Keywords

  • Chronic total occlusion
  • CTO
  • PCI
  • Percutaneous coronary intervention

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

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