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Global Chronic Total Occlusion Crossing Algorithm: JACC State-of-the-Art Review.

Eugene B Wu1, Emmanouil S Brilakis2, Kambis Mashayekhi3

  • 1Prince of Wales Hospital, Chinese University Hong Kong, Hong Kong.

Journal of the American College of Cardiology
|August 20, 2021
PubMed

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Summary
This summary is machine-generated.

This study presents a 10-step algorithm for crossing chronic total occlusions (CTO), enhancing procedural success and guiding complex interventions for better patient outcomes.

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Vascular Medicine

Background:

  • Chronic total occlusions (CTOs) pose significant challenges in percutaneous coronary intervention.
  • Successful CTO crossing is crucial for improving myocardial perfusion and patient prognosis.
  • Existing strategies for CTO crossing lack a standardized, comprehensive approach.

Purpose of the Study:

  • To develop and present a systematic, 10-step algorithm for navigating and crossing complex chronic total occlusions.
  • To provide a structured framework for interventional cardiologists facing challenging CTO cases.
  • To enhance the success rates and safety of CTO interventions.

Main Methods:

  • The algorithm integrates dual angiography, detailed angiographic review (cap morphology, distal vessel, collaterals), and advanced techniques.
Keywords:
chronic total occlusionglobalpercutaneous coronary interventiontreatment algorithm

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  • It incorporates intravascular ultrasound (IVUS), retrograde approaches, and specific wiring strategies for challenging segments.
  • The algorithm includes decision points for strategy modification, investment procedures, and criteria for procedural termination.

    • Main Results:

    • The proposed algorithm offers a stepwise approach to address various CTO complexities, from proximal cap ambiguity to distal vessel issues.
    • It emphasizes the feasibility of retrograde crossing through diverse collateral pathways.
    • The algorithm guides operators on when to adapt strategies or cease procedures based on safety and efficacy parameters.

    Conclusions:

    • This comprehensive 10-step algorithm provides a robust strategy for improving chronic total occlusion crossing success.
    • Its structured approach can enhance procedural efficiency, reduce complications, and expand treatment options for CTO patients.
    • The algorithm serves as a valuable tool for training, research, and collaborative efforts in interventional cardiology.