Ligation of Main Brachial Vein During Brachial-Basilic Transposition
The main brachial (deep) vein draining into the basilic vein should generally NOT be ligated during brachial-basilic transposition, as preserving deep venous drainage is critical to prevent arm edema and maintain adequate venous outflow—however, in select cases where the brachial vein can be incorporated into the access itself (transposed alongside the basilic vein), this represents a viable alternative to ligation.
Key Surgical Principle: Preserve Deep Venous Drainage
The KDOQI 2019 guidelines emphasize that superficial veins should be used before deep veins whenever possible 1. This principle exists because deep veins tend to converge into a single vein as they approach the heart, and obliteration or stenosis of deep veins impairs the availability of more distal access sites 1. Ligating the main brachial vein would eliminate a major component of the deep venous drainage system of the arm.
Clinical Consequences of Brachial Vein Ligation
When the brachial vein is ligated without alternative drainage pathways:
- Arm edema is a common complication, occurring in up to 33% of basilic vein transposition cases even without intentional brachial vein ligation 2
- Loss of deep venous drainage can lead to venous hypertension and chronic swelling
- This compromises both the function of the current access and eliminates future vascular access options
Alternative Surgical Approaches
Rather than ligating the brachial vein, several innovative techniques have been described:
Combined Basilic-Brachial Vein Transposition
When the brachial vein is encountered draining into the basilic vein, both veins can be simultaneously transposed to create an autologous access 3, 4. This technique:
- Preserves venous drainage
- Provides additional length for cannulation
- Has shown satisfactory outcomes in clinical series
Brachial Vein Incorporation
The brachial vein can be mobilized and transposed alongside the basilic vein rather than ligated 4. This approach:
- Maintains deep venous drainage
- Creates a usable fistula when basilic-brachial confluence is low
- Maximizes fistula creation rates
Side-to-Side Anastomosis Without Transposition
An alternative technique involves creating a side-to-side anastomosis between the brachial artery and basilic vein without transposition, allowing both antegrade and retrograde flow 5. This preserves the natural venous anatomy and has demonstrated:
- Lower thrombosis rates (0.067 vs 0.285 per patient-year at 1 year compared to transposed fistulas)
- Fewer surgical complications (5.9% vs 46.2%)
- Reduced time to first use (24.5 vs 37.7 days)
When Brachial Vein Use May Be Considered
If the basilic vein is inadequate, the brachial vein itself can be used as the outflow vessel for arteriovenous fistula creation 6. A systematic review found that brachial vein arteriovenous fistulas demonstrate:
- 1-year secondary patency of 45-96%
- 2-year secondary patency of 19-92%
- Acceptable complication rates when properly selected
Recent case reports even describe fistulization of transposed brachial artery to deep brachial veins as a salvage technique 7, demonstrating that deep veins can be successfully incorporated into access circuits rather than sacrificed.
Clinical Algorithm
When encountering a main brachial vein draining into the basilic vein during transposition:
- First choice: Transpose both basilic and brachial veins together if technically feasible
- Second choice: Preserve the brachial vein and complete basilic vein transposition alone, leaving deep drainage intact
- Third choice: If the basilic vein is inadequate, consider using the brachial vein itself as the primary outflow vessel
- Avoid: Routine ligation of the brachial vein without alternative venous drainage
Important Caveats
- The decision must consider the patient's ESKD Life-Plan and future vascular access needs 1
- Younger patients with expected long survival on dialysis are particularly disadvantaged by decisions that eliminate future access options 1
- Each vascular access should preserve vessels for future access sites while providing functional dialysis 1