Abstract:

Objective To evaluate the feasibility and effectiveness of endovascular treatment of the transplant renal artery anastomotic pseudoaneurysm using chimney technique. Methods Three patients diagnosed with transplant renal artery anastomotic pseudoaneurysm were treated by chimney technique from June 2015 to October 2015. The clinical data and follow-up records were retrospectively analyzed. Results All the three patients were successfully treated by chimney technique. No interventional operation related complications occurred. Post-procedure angiography showed that anastomotic pseudoaneurysm had been completely sealed and blood supplied to transplant kidney was not obstructed. One patient had post-transplant infection before interventional procedure and died at 15 days after interventional operation. The other two patients were comfortable during the follow-up，the reexamination of CTA showed that pseudoaneurysm sac was significantly deflated，blood supply to transplant kidney was good，and the renal function was back to normal level. Conclusion Chimney technique could be an option forthe endovascular treatment of the transplant renal artery anastomotic pseudoaneurysm for saving the transplant kidneyblood supply，but the effectiveness should be confirmed by large sample studies with long-term follow-up.