Abstract: Objectives To summarize the clinical experience and outcome of the endovascular treatment of arteriovenous graft stenosis by high pressure balloon. Methods All the cases of arteriovenous graft stenosis treated by high pressure balloon in our department were analyzed retrospectively. The efficacy, patency and complication rate were followed. Results From Mar 2013 to Nov 2013, 24 cases (mean age of 65.9±14.6 yrs, 7 males and 17 females) were treated. 60% of the lesions were graft- to- vein anastomosis stenosis and 33.4% of the lesions were intra-graft stenosis. The technical success rate was 100%, and the inflation pressure was 10-18 atm, without complications. The 6-month primary patency of circuit was 75%. The 6-month primary lesion patency was 69.8±9.5%, and primary assistant lesion patency was 91.3±5.9%. Conclusions The results suggest that the high pressure balloon is effective for the treatment of arteriovenous graft stenosis with a better technical success rate. However, a longer patency depends on the postoperative surveillance and new materials and techniques.

Key words: Hemodialysis, Arteriovenous graft, Percutaneous transluminal angioplasty, High pressure balloon