Thoracic endovascular aortic repair in 58 patients with Stanford type B aortic dissection

Abstract

Objective To assess the efficacy and clinical results of thoracic endovascular aortic repair (TEVAR) in Stanford type B aortic dissection, and to explore the therapeutic strategy and prevention of complication. Methods Fifty-eight patients with Stanford type B aortic dissection underwent TEVAR were enrolled, and were followed up regularly. Results The technical feasibility and success with deployment proximal to the entry tear was 100.0%(58/58), requiring partial coverage of the left subclavian artery in 20 patients and total coverage in 4 patients, and 2 patients used chimney stents. Hospital mortality was 5.2% (3/58). Type I endoleak was found in 11 patients (19.0%, 11/58). In 55 survival patients,48 patients occurred thrombosis in pseudocoele and 2 patients' endoleak disappeared. Seven patients' endoleak appeared blood flow. Forty-eight patients(87.3 %,48/55) were followed up for 3-68 months. Two patients died, and 2 patients' endoleak disappeared,with total suberization in pseudocoele. Other 5 patients' endoleak relieved, with partial suberization in pseudocoele. One patient had new intimal tear at the distal end of the stent-graft and required a second stent implantation. Conclusion TEVAR is safe and effective for the treatment of Stanford type B aortic dissection. Key words: Stents; Aortic dissection, Stanford type B; Thoracic endovascular aortic repair