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...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.展开更多
Blunt traumatic thoracic aortic injury(BTAI)is an extremely serious medical condition with a high rate of associated mortality.Recent advances in techniques such as thoracic endovascular repair offer new opportunities...Blunt traumatic thoracic aortic injury(BTAI)is an extremely serious medical condition with a high rate of associated mortality.Recent advances in techniques such as thoracic endovascular repair offer new opportunities to manage the critical BTAI patients in an efficacious yet less invasive manner.A 65 year-old-male suffered from multiple injuries after a fall,including BTAI in the aortic arch,which resulted in dissection of the descending thoracic-abdominal aorta and iliac artery,development of an intimal flap in the left common carotid artery,and dissection of the left subclavian artery.Based on the imaging information of this patient and our clinical experience,the combined treatment of fenestrated thoracic endovascular repair and a chimney technique was immediately planned to fully repair these dissections and moreover prevent further dissection of the branching vessels,additionally to ensure sufficient blood flow in the left subclavian artery and left common carotid artery.The intervention yielded satisfactory early outcomes.Follow-up assessment at six months reported no symptoms or complications associated with the stent-graft.Computed tomography angiography further confirmed adequate stent-graft coverage of the aortic injury.展开更多
文摘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.
文摘Blunt traumatic thoracic aortic injury(BTAI)is an extremely serious medical condition with a high rate of associated mortality.Recent advances in techniques such as thoracic endovascular repair offer new opportunities to manage the critical BTAI patients in an efficacious yet less invasive manner.A 65 year-old-male suffered from multiple injuries after a fall,including BTAI in the aortic arch,which resulted in dissection of the descending thoracic-abdominal aorta and iliac artery,development of an intimal flap in the left common carotid artery,and dissection of the left subclavian artery.Based on the imaging information of this patient and our clinical experience,the combined treatment of fenestrated thoracic endovascular repair and a chimney technique was immediately planned to fully repair these dissections and moreover prevent further dissection of the branching vessels,additionally to ensure sufficient blood flow in the left subclavian artery and left common carotid artery.The intervention yielded satisfactory early outcomes.Follow-up assessment at six months reported no symptoms or complications associated with the stent-graft.Computed tomography angiography further confirmed adequate stent-graft coverage of the aortic injury.
