Abstract：Objective To study the clinical effects of covered stent in treating DebakeyⅢtype aortic dissection，and to provide scientific basis for clinical treatment of DebakeyⅢtype aortic dissection.Methods 30 DebakeyⅢtype aortic dissection patients who diagnosed and treated with covered stent and 30 DebakeyⅢtype aortic dissection patients who treated with traditional branch artificial blood vessel from January 2013 to December 2014 were selected and were divided into observation group and the control group.Retrospective study method was used to study the clinical data of 60 DebakeyⅢtype aortic dissection patients.The surgery method of them was studied，and the surgical success rate，mortality，extracorporeal circulation time，blocking time，selective cerebral perfusion time，induced flow volume in postoperative 24 h，hospital stays and follow up in two groups were compared.Results The difference of surgical success rate and mortality between two groups had no statistical significance（P＞0.05）.The extracorporeal circulation time，blocking time，selective cerebral perfusion time and hospital stays in observation group was obvious shorter than that of control group respectively（P＜0.05），and induced flow volume in postoperative 24 h in observation group was lower than that of control group（P＜0.05）.Postoperative short term follow-up data showed that the patients with successful surgery and survival in observation group and control group conducted nuclear magnetic resonance reviewed founded，the false lumen in aortic dissection decreased，the thrombosis formation and true lumen obvious increased，and any complications appeared.Conclusion In the clinical treating of DebakeyⅢtype aortic dissection，using covered stent treatment with obvious recent therapeutic effect，and with little complications and high safety.But the long term effects of covered stent in treating DebakeyⅢtype aortic dissection needs further discussion.
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