Proximal true lumen collapse in a chronic type B aortic dissection patient:A case report  

作　　者：Li Zhang Wei-Kang Guan Hua-Ping Wu Xiang Li Kai-Ping Lv Cun-Liang Zeng Huan-Huan Song Qian-Ling Ye 

机构地区：[1]Department of Vascular Surgery,Dazhou Central Hosptial,Dazhou 0833,Sichuan Province,China

出　　处：《World Journal of Clinical Cases》2021年第34期10689-10695,共7页世界临床病例杂志

摘　　要：BACKGROUND In the context of aortic dissection,increasing pressure within the newly formed false lumen can result in the progressive compression of the true aortic channel.However,true lumen collapse in chronic type B aortic dissection(cTBAD)patients is rare,with few clinical or experimental studies to date having explored the causes of such collapse.CASE SUMMARY In the present report,we describe a rare case of true-lumen collapse in an 83-yearold patient diagnosed with cTBAD,and we discuss potential therapeutic interventions for such cases.Following thoracic endovascular aortic repair(TEVAR),computed tomography angiography revealed satisfactory stent-graft positioning,no endoleakage,true lumen enlargement,thrombus formation in the false lumen,and slight enlargement of the true lumen distal to the stent-graft.Computational hemodynamic analyses indicated that the wall shear stress and pressure within the false lumen were significantly reduced following TEVAR.CONCLUSION TEVAR treatment of cTBAD patients suffering from proximal true lumen collapse can facilitate some degree of effective remodeling.

关 键 词：True lumen collapse Chronic type B aortic dissection Thoracic endovascular repair Computational hemodynamics analysis Case report 

分 类 号：R543.1[医药卫生—心血管疾病]