Initial Vascular Access Location for First-Time Hemodialysis
For a patient starting hemodialysis for the first time, the arteriovenous fistula (AVF) should be created in the distal forearm (radiocephalic/Brescia-Cimino fistula at the wrist or snuffbox fistula) as the first choice, following a distal-to-proximal approach to preserve future vascular access sites 1.
Recommended Sequential Approach
The KDOQI 2019 guidelines establish a clear hierarchy for initial access placement 1:
First-Line Options (Distal Forearm):
- Snuffbox fistula (radial artery branch to adjacent vein in anatomic snuffbox)
- Distal radiocephalic (Brescia-Cimino) fistula (radial artery to cephalic vein at wrist)
Second-Line Options (Proximal Forearm/Antecubital):
- Proximal radiocephalic fistula
- Gracz fistula (proximal radial artery to perforating branch of cephalic/median cubital vein)
- Other antecubital vessel-perforator combinations
Third-Line Options (Upper Arm):
- Brachiocephalic fistula
- Brachiobasilic transposition
- Other brachial or basilic combinations
Graft Considerations:
- If AVF is not suitable, forearm loop graft before upper arm graft
Critical Rationale: The Vascular Access Succession Plan
The distal-to-proximal approach is essential for patients expected to have prolonged survival on hemodialysis because it preserves proximal vessels for future access when the current one fails 1. This is particularly crucial for younger patients who may need multiple access sites over their lifetime.
Important Caveat: The Upper Arm Paradox
While guidelines recommend starting distally, there's contradictory research evidence showing that upper arm fistulas may have practical advantages 2:
- Patients with upper arm fistulas as their first access had significantly reduced catheter use when starting dialysis
- Upper arm fistulas demonstrated shorter maturation times
- Forearm fistula patients were more likely to need temporary catheters despite being younger, non-diabetic, and having the fistula placed earlier
However, the guideline explicitly warns against the "unintended consequence" of creating upper arm accesses solely to meet "fistula targets," as this can disadvantage patients—especially younger individuals—by eliminating future access options 1.
Clinical Decision Algorithm
Start with distal forearm AVF IF:
- Patient has adequate distal vessels on vascular mapping
- Expected long-term survival on dialysis (>5 years)
- Patient is young (<65 years)
- Adequate time for maturation (ideally 3-6 months before dialysis need)
Consider proximal forearm or upper arm AVF IF:
- Inadequate distal vessels
- Urgent dialysis need (though still allow maturation time)
- Previous failed distal access
- Limited life expectancy where vessel preservation is less critical
Consider forearm graft IF:
- No suitable forearm veins for AVF
- Still preserves upper arm vessels for future options
Common Pitfalls to Avoid
Creating bilateral upper arm accesses early: This eliminates future options and should be avoided, especially in younger patients 1
Placing catheters ipsilateral to planned AVF site: Prior ipsilateral catheter placement is associated with inferior AVF outcomes 1
Rushing to upper arm fistulas: Despite faster maturation, this sacrifices the succession plan 1
Left-sided catheter placement: If temporary catheter is needed, right internal jugular has lower infection and dysfunction rates (0.24 vs 0.33 infections per 100 catheter-days) 1
The ESKD Life-Plan Context
Every access decision must consider the patient's individualized ESKD Life-Plan, which includes current and anticipated medical circumstances, expected time on dialysis, transplant candidacy, and potential for other modalities 1. The goal is not just a functional first access, but a thoughtful succession plan that maximizes the patient's lifetime access options.