Related Experiment Videos
Atherectomy. Early use of three different methods
J D Reid1, Y N Hsiang, D L Doyle
1Division of Vascular Surgery, University of British Columbia, Vancouver.
Summary
Peripheral artery atherectomy using the Tracwright and Simpson catheters showed promising initial results for claudication and limb ischemia. The transluminal extraction catheter demonstrated significantly lower patency rates, indicating potential for increased occlusion and restenosis.
Area of Science:
- Vascular Surgery
- Interventional Cardiology
- Endovascular Interventions
Background:
- Peripheral artery disease (PAD) significantly impacts patient mobility and limb viability.
- Atherectomy offers a minimally invasive approach to restore arterial patency.
- Comparing different atherectomy devices is crucial for optimizing treatment strategies.
Purpose of the Study:
- To evaluate the initial clinical experience and outcomes of three distinct peripheral artery atherectomy techniques.
- To compare the efficacy and safety of the Tracwright (Kensey), Simpson AtheroCath, and transluminal extraction catheter.
- To assess short-term patency rates and complication profiles associated with each device.
Main Methods:
- Retrospective analysis of 52 patients undergoing peripheral atherectomy.
- Categorization of patients by indication: claudication (80%) and limb-threatening ischemia (19%).
- Detailed reporting of procedural success, complications, and 1-year primary and secondary patency rates for each of the three devices.
Main Results:
- No procedural deaths occurred; complications included arterial perforations, thrombosis, and hematoma.
- Initial technical success rates varied, with 15% of procedures being unsuccessful.
- One-year primary patency rates were 56% (Tracwright), 63% (Simpson), and 0% (transluminal extraction).
- Secondary patency rates after additional procedures were 77% (Tracwright), 80% (Simpson), and 78% (transluminal extraction).
Conclusions:
- Early results suggest the Tracwright and Simpson atherectomy catheters warrant further investigation.
- The transluminal extraction catheter is associated with higher rates of occlusion and restenosis, limiting its utility.
- Peripheral atherectomy demonstrates potential for managing PAD, but device selection is critical for optimal outcomes.