Vessel mapping is an important step in identifying patients who can successfully receive an endoAVF. Sonographers play a vital role in this process by accurately screening and communicating results to the physician to determine which patients are potential candidates. Prior to the WavelinQ™ EndoAVF System procedure patients are evaluated to determine if they are a candidate for an endoAVF through vessel mapping.
Who is a candidate for WavelinQ™ EndoAVF system?
Patients considered healthy enough to have a standard endovascular procedure and a surgical AV fistula qualify for further assessment. Standard AVF screening includes checking for good inflow with the brachial artery being at least 2 mm in diameter and identifying good outflow with either the superficial basilic or superficial cephalic vein measuring 2.5 mm in diameter or greater and without a flow limiting central venous stenosis.
In addition to the standard AVF screening, a WavelinQ™ EndoAVF screening has three additional steps.
- Vessels that can accommodate the device – procedural access vessels must be at least 2 mm
- Perforator that is ≥ 2 mm in diameter, which is how the superficial and deep veins communicate
- Creation site with ulnar artery/vein and/or radial artery/vein ≥ 2 mm in diameter