Chinese Journal of Tissue Engineering Research ›› 2016, Vol. 20 ›› Issue (47): 7097-7105.doi: 10.3969/j.issn.2095-4344.2016.47.015

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A novel domestic-made stent-graft in endovascular abdominal aortic aneurysm repair: outcome of short- and medium-term follow-up and experience summary of a single-center controlled clinical trial

Liu Ming-yuan1, Liu Bing2, Wang Hao-fu3
  

  1. 1Department of Vascular Surgery, Peking University People’s Hospital, Peking University Health Science Center, Beijing 100191, China; 2Department of Vascular Surgery, Huangdao Branch of the Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong Province, China; 3Department of Vascular Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong Province, China
  • Received:2016-08-20 Online:2016-11-18 Published:2016-11-18
  • Contact: Wang Hao-fu, Chief physician, Department of Vascular Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong Province, China
  • About author:Liu Ming-yuan, Studying for doctorate, Department of Vascular Surgery, Peking University People’s Hospital, Peking University Health Science Center, Beijing 100191, China Liu Bing, Department of Vascular Surgery, Huangdao Branch of the Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong Province, China Liu Ming-yuan and Liu Bing contributed equally to this work.
  • Supported by:

    the Medical Equipment Major Research Project of the 12th Five-year National Science and Technology Support Planning, No. 2012BAI18B03; the Public Sphere Science and Technology Support Program of Qingdao, No. 2012-1-3-2-(16)-nsh

Abstract:

BACKGROUND: Limited by the high financial burden of stent-graft and proof of evident-based medicine, the popularization of endovascular abdominal aortic aneurysm repair, a mini-invasive method, is impeded in China. In order to reduce costs, development of domestic-made stents is imperative, but the relative research is still rare.
OBJECTIVE: To compare the effect of domestic-made stent-graft (Percutek) and Gore Excluder in the endovascular abdominal aortic aneurysm repair.
METHODS: From January to November 2014, there were 32 male patients with infrarenal abdominal aortic aneurysm, aged 56-79 years old with mean age of (70.2±6.9) years, admitted in the Vascular Surgery Department of the Affiliated Hospital of Qingdao University. Clinical data were collected and retrospectively analyzed. There were 11 cases undergoing domestic-made stent-graft repair and 21 undergoing Gore Excluder repair. Aortic CT angiography was performed at 1 and 6 months after surgery, and every 6 months thereafter to evaluate the effect of the two modalities.
RESULTS AND CONCLUSION: Domestic-made stent-grafts were successfully implanted into the 11 patients, and there were 1 case of late type I endoleak, 1 of type II endoleak, 1 of iliac occlusion and 1 of death after surgery. Totally 11 stent-graft trunks, 18 iliac stent-grafts, 1 Cuff, and 1 bare metal stent were implanted in the domestic-made stent-graft group (2.8 stents/case). Totally 21 patients were subjected to Gore Excluder repair with the success rate of 90%, and 2 cases of intraoperative I type endoleak (10%), 2 of postoperative I type endoleak and 2 of postoperative II type endoleak were observed. Totally 21 stent-graft trunks, 28 iliac stent-grafts and 3 Cuff were implanted in the Gore Excluder group (2.47 stents/case). These results suggest that the novel domestic-made stent-graft has achieved a satisfactory outcome in endovascular abdominal aortic aneurysm repair, showing no significant differences in related indicators with the Gore Excluder; however, the long-term outcomes still need to be further studied.

Key words: Stents, Aortic Aneurysm, Abdominal, Postoperative Complications, Tissue Engineering

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