关键词: 血液透析, 动静脉内瘘, 狭窄, 血管成形术

Abstract: Objective To evaluate the effect of percutaneous transluminal angioplasty(PTA) in treatment of the stenosis in hemodialysis arteriovenous fistula (AVF). Methods 37 patiens From July, 2006 to February, 2013 in our hospital，who with stenosis in hemodialysis AVF, received PTA for stenosis in hemodialysis
AVF .Anterograde puncture brachial artery,angiography for forearm and finding the stenosis in AVF, then try to pass through the stenosis with guidewire and balloon angioplasty the lesions of stenosis. Finally angiography again to evaluate the effect of treatment. Results In all 37 patients,34 patients underwent treatment of PTA successfully, the stenosis in AVF disappeared through angiography.The AVF blood flow was larger than 250 ml /min during hemodialysis, and enough for the requirement of hemodialysis. Technical and clinical success rates were 91.9%。Average followup 12.3 month, 3- mo、6- mo and 12- mo primary patency rate is 94.2% 、88.5% and 78.3%.no severe complications occurred. Conclusions Angioplasty is an effective method for the stenosis of AVF,and even can be used as first choice for AVF stenosis.

Key words: Hemodialysis, Arteriovenous fistula, Stenosis, Angioplasty