Fig. 2
![Fig. 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs43055-020-00184-4/MediaObjects/43055_2020_184_Fig2_HTML.png)
A 67-year-old male patient with history of diabetic nephropathy. a Color Doppler US 8 days after the surgery shows the blood flow at the anastomosis (volume flow measurement is 126.2 ml/min). b Color Doppler US demonstrates total thrombosis of the cephalic vein at the late postoperative period, and no color flow was detected. c Color Doppler US shows the late postoperative period volume flow measurement 236.3 ml/min, this fistula failed, and the cause of failure was total thrombosis of the cephalic vein