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Creating effective vascular access for chronic hemodialysis remains a challenge. Direct arteriovenous (AV) fistulas are the preferred method due to superior patency and fewer complications, with alternatives used sequentially.
Area of Science:
- Nephrology
- Vascular Surgery
- Dialysis Access
Background:
- Vascular access is a critical and persistent challenge in chronic hemodialysis for both healthcare providers and patients.
- Ensuring adequate and long-lasting access is essential for effective treatment delivery.
Purpose of the Study:
- To review and recommend optimal strategies for establishing and managing vascular access for chronic hemodialysis.
- To compare the efficacy of different types of vascular access, prioritizing autologous options.
Main Methods:
- Review of established vascular access techniques, including direct arteriovenous (AV) fistulas and AV grafts.
- Evaluation of surgical approaches, from distal to proximal sites, including Brescia-Cimino and brachiocephalic fistulas.
- Assessment of alternative options like snuff-box fistulas and transposed basilic vein fistulas.
Main Results:
- Direct AV fistulas demonstrate the highest patency rates and lowest complication rates, making them the preferred choice.
- A stepwise approach, starting with distal autologous options and progressing proximally, is recommended.
- Graft fistulas, particularly those made of ePTFE, are a viable alternative but are associated with higher costs and should be reserved for cases where autologous options are exhausted.
Conclusions:
- Direct AV fistulas are the gold standard for chronic hemodialysis vascular access.
- A strategic, stepwise implementation of various autologous access methods is crucial for long-term patient management.
- Graft fistulas serve as a secondary option, with ePTFE grafts offering comparable patency to autologous fistulas at a greater expense.
Abstract:
Vascular access for chronic hemodialysis is for both doctors and nurses on one side and patients on the other a permanent, challenging problem. In respect to patency and complication rate, the direct AV fistula represents the most satisfactory solution and therefore should be achieved whenever feasible. In addition to the classic Brescia-Cimino and the brachiocephalic fistula, the most distal location in the snuff-box on one end and a transposed basilic vein at the upper arm on the other offer most satisfactory angioaccess alternatives that must be used stepwise from the periphery to more proximal sites. Graft fistulas should clearly be reserved for the patient for whom all autologous possibilities (with the exclusion of the autologous saphenous vein graft) have been used. Only ePTFE grafts have a patency rate comparable with direct autologous fistulas at a much higher cost.