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Snowballing Technique for High Flow Arteriovenous Fistula: A Technical Note
Riyadh Nasser Alokaili1, Hesham Riyadh Alokaili2, Mohammad F Badran1
1Department of Radiology, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia.
Neurointervention
|February 7, 2022
Summary
A new endovascular technique uses a microcatheter tip to grow a plug from liquid embolic agent for treating high-flow arteriovenous fistulae. This method offers cost savings and improved distal access for fistula occlusion.
Area of Science:
- Interventional Radiology
- Vascular Surgery
- Endovascular Techniques
Background:
- Direct arteriovenous fistulae (AVFs) present a significant challenge in endovascular treatment, particularly high-flow types.
- Existing occlusion methods may have limitations in terms of cost, reach, or material stability.
Purpose of the Study:
- To present a novel endovascular technique for occluding high-flow direct AVFs.
- To describe the method of using a microcatheter tip as a nucleus for plug formation with liquid embolic agents.
Main Methods:
- A new endovascular approach is detailed, utilizing the distal microcatheter tip.
- Liquid embolic agents are employed to create an occlusive plug, initiated at the microcatheter terminus.
- Technique focuses on controlled plug growth for effective fistula closure.
Main Results:
- The technique allows for the controlled formation of an embolic plug.
- Demonstrates potential for reaching distal fistula components.
- Highlights advantages such as cost-effectiveness.
Conclusions:
- This novel technique offers a promising method for endovascular occlusion of high-flow direct AVFs.
- Consideration of potential disadvantages, such as embolic material instability, is necessary.
- Further evaluation of this approach in clinical practice is warranted.
