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find Author "XIE Xiaozhang." 1 results
  • Early and Midterm Follow-Up Results of Endovascular Repair of Stanford Type B Aortic Dissection:Report of 85 Cases

    Objective To introduce the experience of treating 85 cases of stanford type B aortic dissection by endovascular implantment of stent-grafts,to provide more clinical evidence for endovascular repairment for stanford B type aortic dissections.Methods Imaging examination by computed tomography angiography (CTA) were done to obtain anatomical detail of dissection. Stent-grafts were implanted under the guide of DSA in all cases. The patients were followed-up for 3 months,6 months,12 months,and then annually by CTA examination to observe the complications and morphological changes of the aneurysm.Results The technical success rate was 95.3%(81/85),and the clinical success rate was 91.8%(78/85). Eight patients died after operation in hospital,who were all in acute phase,and no patients of chronic phase died,there had statistic differences (P<0.05). The perioperative complications’ incidence of endovascular repair which happened in patients of acute phase was higher than that patients of chronic phase (38.2% vs.13.3%,P<0.05). Left subclavian artery were covered completely for 13 cases,and partially covered for 22 cases,there was no obvious cerebralvascular insufficiency. There were 41 patients of whom other tears which were not covered during operation exsited at abdominal aortic and one year following-up showed that at those section thromblization of false cavity was not clear. The rest of patients whose abdominal aortic didn’t exist tears hadn’t new tears appeared.Conclusions Regardless in the acute or chronic stage,endovascular therapy is an effective mathod of treating stanford type B dissection. However,implanting stent-grafts have a higher security in chronic period than doing that in acute period. If the right carotid artery,vertebra and Willis ring are smoothly,there is little need to set up a by-pass to left subclavian artery before endovascular repairment. For those patients that other uncovered tears exited,following-up should be a must,and further strategy should be studied and prepared in advance.

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