Abstract: 【Abstract】Objective To summarize the diagnosis, treatment and clinical effects of different treatment methods for early cannulation arteriovenous graft dissection. Methods The clinical data of 86 patients with arteriovenous graft (AVG) and treated with surgery in our center from August 2017 to December 2020 were retrospectively studied. Their basic information, preoperative ultrasound findings, lesion location, treatment method and follow-up results were statistically analyzed. Results All of the 4 patients with early cannulation AVG dissection were treated with percutaneous transluminal angioplasty(PTA) at first. The technical success rate and clinical success rate were 100%. They were followed up with the median follow-up time of 13.8±8.0 months. The primary patency rates after the surgery for 3 months and 6 months were 50% and 25% respectively. During the follow-up period, all of the 4 patients underwent surgical treatment again; 3 of them were treated with stent graft, and the primary patency rates after stent implantation for 3 months and 6 months were 100%; one of them underwent AVG replacement, and the AVG was patent in the follow- up period of 9 months. Conclusion Dissection is a rare complication in hemodialysis patients with AVG for blood access. PTA results in a patency AVG only a short period of time. Stent graft implantation or AVG replacement achieves a better patency rate and satisfactory treatment effects.

Key words: Early cannulation, Arteriovenous graft, Dissection, Diagnosis, Treatment