%0 Journal Article
%T Two weeks post
%A Chen Ai-Zhen
%A Feng Guo-Zhen
%A Hou Guo-Cun
%A Hou Yi
%A Sun Xiu-Li
%A Yan Yong-Hong
%A Yin Na
%J The Journal of Vascular Access
%@ 1724-6032
%D 2019
%R 10.1177/1129729818821620
%X The aim of this study was to assess the accuracy of post-operative ultrasound examination for predicting wrist radio-cephalic arteriovenous fistula maturity. All radio-cephalic arteriovenous fistulas performed in our hospital between October 2015 and December 2017 were included in this study. Ultrasound examination of radio-cephalic arteriovenous fistulas was performed 2£¿weeks post-surgery. Radio-cephalic arteriovenous fistula maturation was defined as successful cannulation of a fistula with two needles, delivery of blood via the access route at a flow rate £¿200£¿mL/min for 4£¿h, and dialysis via fistulae in at least six consecutive sessions. Eighty-two wrist radio-cephalic arteriovenous fistulas were analyzed, of which 13 failed. Cephalic vein diameter >4.285£¿mm and brachial artery peak systolic velocity >134.75£¿cm/s were the best post-operative ultrasound predictors of radio-cephalic arteriovenous fistula maturity (p£¿<£¿0.001 and p£¿=£¿0.011, respectively). Receiver-operating characteristic curve analysis showed that the sensitivity and specificity of predicting radio-cephalic arteriovenous fistula maturation were 88.4% and 92.3% for cephalic vein diameter (area under the curve£¿=£¿0.939), respectively, and 82.9% and 76.9% for brachial artery peak systolic velocity (area under the curve£¿=£¿0.830), respectively. All assessments predicted radio-cephalic arteriovenous fistula maturity (post-operative positive predictive values: cephalic vein diameter£¿=£¿98.4%, brachial artery peak systolic velocity£¿=£¿95%) much better than radio-cephalic arteriovenous fistula failure (post-operative negative predictive values: cephalic vein diameter£¿=£¿60%, brachial artery peak systolic velocity£¿=£¿45.5%). Two weeks after surgery, a new wrist radio-cephalic arteriovenous fistula with a cephalic vein diameter >4.285£¿mm was considered suitable for dialysis. A high-risk arteriovenous fistula failure would benefit from early intervention
%K Radio-cephalic arteriovenous fistulae
%K color Doppler ultrasound
%K cephalic vein
%K brachial artery
%U https://journals.sagepub.com/doi/full/10.1177/1129729818821620