Related Experiment Videos
Directional atherectomy in the treatment of stenotic dialysis access fistulas
G Zemel1, B T Katzen, M D Dake
1Department of Radiology, Miami Vascular Institute, Baptist Hospital of Miami 33176.
Insights
Directional atherectomy offers a safe and effective treatment for stenotic hemodialysis access fistulas. This minimally invasive technique demonstrates promising patency rates, potentially surpassing traditional percutaneous transluminal angioplasty.
Area of Science:
- Vascular Surgery
- Interventional Nephrology
- Medical Device Technology
Background:
- Peripheral vascular occlusive disease treatment.
- Hemodialysis access fistulas are crucial for patients with end-stage renal disease.
- Fistula stenosis is a common cause of access failure.
Purpose of the Study:
- Evaluate the safety and efficacy of directional atherectomy for hemodialysis fistula stenosis.
- Compare outcomes with percutaneous transluminal angioplasty (PTA).
Main Methods:
- Retrospective analysis of 13 patients with stenotic hemodialysis fistulas.
- Directional atherectomy as primary or adjunctive therapy.
- Assessment of procedural success and fistula patency.
Main Results:
- Successful treatment in 10 out of 13 patients.
- Fistula patency maintained in 7 surviving patients.
- Directional atherectomy was the sole modality in 8 patients; 3 required subsequent PTA after initial atherectomy; 2 required PTA after unsuccessful atherectomy.
Conclusions:
- Directional atherectomy is a safe and effective percutaneous treatment for hemodialysis fistula stenosis.
- Early data suggest potentially higher patency rates compared to PTA.
- This technique represents a valuable option for managing failing hemodialysis access.
Abstract:
Directional atherectomy has proved useful in the treatment of peripheral vascular occlusive disease, and the authors have begun using this modality in the treatment of patients with failing hemodialysis access fistulas. The authors describe their initial experience with 13 patients in whom directional atherectomy was used to treat stenotic hemodialysis fistulas. Directional atherectomy was the sole treatment modality for eight patients. Three patients underwent atherectomy after unsuccessful percutaneous transluminal angioplasty (PTA). In two patients, unsuccessful atherectomy necessitated subsequent PTA. Directional atherectomy was successful in 10 of 13 patients. In seven of these 10 patients who are still alive, the dialysis fistulas remain patent. Directional atherectomy is a safe and useful technique in the percutaneous treatment of hemodialysis fistula stenosis. Early data indicate patency rates that may be higher than those reported with PTA.