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A Percutaneous Crossing Algorithm for Femoropopliteal and Tibial Artery Chronic Total Occlusions (PCTO Algorithm)
Subhash Banerjee1, Mehdi H Shishehbor, Jihad A Mustapha
1Dallas VA Medical Center, 4500 S. Lancaster Road (111a), Dallas, TX 75216 USA. subhash.banerjee@utsouthwestern.edu.
Insights
This review presents an ultrasound-guided strategy for crossing femoropopliteal peripheral artery chronic total occlusions (PCTOs). The approach aims to improve procedural success and patient safety in endovascular interventions for peripheral artery disease.
Area of Science:
- Vascular Surgery
- Interventional Radiology
- Medical Imaging
Background:
- Peripheral artery chronic total occlusions (PCTOs) present a significant challenge in endovascular interventions.
- Successful crossing of PCTOs is critical for procedure success and complication avoidance.
Purpose of the Study:
- To outline a contemporary, ultrasound-based approach for crossing femoropopliteal (FP) PCTOs.
- To provide a systematic strategy for optimizing guidewire selection and re-entry techniques.
Main Methods:
- Review of prospectively collected case reports, published evidence, and expert consensus.
- Description of optimal imaging and key angiographic/ultrasound features.
- Development of a hierarchical procedural algorithm.
Main Results:
- Detailed guidance on lesion imaging and selection of antegrade, retrograde, or hybrid crossing techniques.
- Strategies for initial guidewire selection, escalation, and dissection re-entry.
- Case examples illustrating the application of the described methods.
Conclusions:
- The proposed ultrasound-based algorithm provides a systematic strategy for crossing PCTOs.
- Implementation of this approach can enhance crossing efficiency, treatment success, and patient safety.
Abstract:
Peripheral artery chronic total occlusions (PCTOs) are frequently encountered during endovascular treatment of peripheral artery disease. Failure to successfully cross PCTOs accounts for the majority of unsuccessful endovascular procedures and associated complications. This review outlines a contemporary ultrasound-based approach to crossing femoropopliteal (FP) PCTOs based on a review of prospectively collected case report surveys, published evidence, and expert opinion compiled by the writing group members. The authors describe optimal imaging of PCTO lesions as well as key angiographic and ultrasound imaging features for determining the choice of antegrade, retrograde, or hybrid techniques, initial guidewire selection, guidewire escalation, and dissection re-entry approaches. These concepts are illustrated using clearly defined hierarchical steps and case examples. The writing group members recognize that while the algorithm provided may not encompass all clinical situations, it will serve as a foundation for establishing a systematic procedural strategy for crossing PCTOs to maximize crossing efficiency, treatment success, and patient safety.
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