Emergency Viabahn covered stenting in treatment of postoperative ruptured hepatic artery pseudoaneurysm

Abstract

Objective To evaluate the safety and efficacy of Viabahn covered stent in treatment of hepatic artery pseudoaneurysm (HAPA) caused by surgery. Methods Clinical data of 7 patients with postoperative massive intra-abdominal hemorrhage and diagnosed as HAPA with emergency angiography were collected from November 2015 to May 2016. All the patients underwent Viabahn covered stent implantation. Perioperative and postoperative clinical data of the patients were recorded, and with 1-month follow-up. Results All the 7 cases were diagnosed as extrahepatic HAPA and successfully completed Viabahn covered stent procedure, and curative rate was up to 100%. One case experienced transient vasospasm in the hepatic artery proximal to the stent. All the patients repeated hepatic artery CT angiography scans one week after surgery, with no evidence of bleeding. With 1-month follow-up, all the patients were in stable conditions. Conclusion Viabahn covered stent is minimally invasive, simple and effective interventional approach for HAPA. Key words: Pseudoaneurysm; Hepatic artery; Covered stent; Hemorrhage