What does this research mean for the field?

Percutaneous coronary intervention for chronic total occlusion in South Korea demonstrates a high procedural success rate (82.2%) and favorable long-term outcomes, with attempts predicted by younger age, prior PCI, and stable angina. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

This study aims to analyze contemporary practices and outcomes in the management of coronary chronic total occlusion in Korea.

May 20, 2026Open Access

Contemporary Clinical Practices in Korean Patients With Coronary Chronic Total Occlusion: Results From the K-CTO Nationwide Retrospective Registry

Key Points

This study aims to analyze contemporary practices and outcomes in the management of coronary chronic total occlusion in Korea.
Nationwide retrospective study involving 9,316 patients from the K-CTO registry.
Patients predominantly underwent percutaneous coronary intervention (PCI) with prognosis followed up over 5 years.
Analyzed predictors of procedural attempts and adverse event rates.
82.2% overall procedural success rate for PCI in patients treated.
Major adverse events occurred in approximately 18-19% of patients during follow-up.
5-year mortality rate recorded at 8.4%.

Abstract

The Korean Chronic Total Occlusion (K-CTO) registry 2.0, a nationwide retrospective study of 9,316 patients, provides contemporary insights into chronic total occlusion (CTO) management in South Korea.Among these patients, 78% underwent percutaneous coronary intervention (PCI) with an overall procedural success rate of 82.2%.Predictors of PCI attempt included younger age, prior PCI, and stable angina, while diabetes and prior coronary artery bypass grafting (CABG) were associated with fewer attempts.During follow-up, major adverse events occurred in approximately 18-19% of patients, and 5-year mortality was 8.4%.CTO-PCI in Korea demonstrated high procedural success with favorable long-term outcomes.

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Cite This Study

Cha et al. (Mon,) studied this question.

synapsesocial.com/papers/6a0d4efcf03e14405aa9a2ed https://doi.org/https://doi.org/10.4070/kcj.2025.0412

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