Different covered stent designs on the short and long term efficacy of thoracic endovascular aortic repair in patients with acute Stanford B-type aortic dissection
Objective To evaluate the impact of different covered stent designs on the short and long term efficacy of thoracic endo-vascular aortic repair(TEVAR)in patients with acute Stanford B-type aortic dissection(ATBAD).Methods A total of 665 patients diagnosed with ATBAD and treated with TEVAR were selected from General Hospital of Northern Theater Command from January 2017 to December 2022.Patients were divided into proximal bare stent group(n=338)and no proximal bare stent group(n=327)according to whether there was a bare metal area in the proximal end of the stent implanted during the operation.The occurrence of clinical ad-verse events 30 days and 1 year after surgery were observed in the two groups.Results There was no significant difference in the inci-dence of all-cause death,aortic death,death from other causes,ischemic stroke,aortic adverse events,rehairpin layer,internal leakage,distal stent ulcer and other complications between two groups after 30 days of follow-up(P>0.05).There was no significant difference in the incidence of all-cause death,aortic death,death from other causes,ischemic stroke,rehairpin layer and distal stent ulcer between two groups during 1 year follow-up(P>0.05).The incidence of aortic adverse events and internal leakage in no proximal bare stent group was higher than that in proximal bare stent group at 1 year follow-up,and the differences were statistically significant(P<0.05).Conclusion The use of proximal bare stent in TEVAR treatment for ATBAD patients can significantly reduce the rate of post-operative long-term aortic-related adverse events and endoleak.
Acute Stanford B aortic dissectionThoracic endovascular aortic repairStent typePrognosis
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