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Rethinking small vessel CTOs: collateral channels as a bridge to subsequent complex intervention-a case report

Zizhuo Su1,2, Jiajie Li1,2, Woliang Yuan1,2

  • 1Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China.

European Heart Journal. Case Reports
|April 23, 2026
PubMed
Summary

Utilizing collateral channels identified during percutaneous coronary intervention (PCI) for chronic total occlusions (CTOs) can enable retrograde approaches. This strategy successfully treated complex multi-vessel CTOs, improving patient outcomes.

Keywords:
Case reportChronic total occlusionCollateral channelCoronary small vesselPercutaneous coronary interventionRetrograde approach

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