PMC9730160_01
Swollen left hand with necrotic fingers.
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There was also no obtainable peripheral saturation on the 2nd to 5th left finger (Fig. 1).
(A) Normal brachial artery connected to venous segment, (B) flow in AVF with bidirectional shunt predominantly retrograde flow, (C) retrograde flow in the distal radial artery, (D) high flow AVF of 3550 mL/min (normal 600-800 mL/min, (E) normal cephalic vein, (F) significant stenosis at axillary vein.
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The brachial artery proximal to the distal anastomosis exhibited low-resistance antegrade flow, typical for a normal functioning fistula artery, while the artery waveform distal to the anastomosis showed high resistance with retrograde flow (Fig. 2).