Stent graft coverage of dual-stent strategy in the management of abdominal aortic aneurysms

Abstract Treating an abdominal aortic aneurysm (AAA) with a stent graft (SG) and a multilayer stent (MS) is a key technology in isolating flow fields. Clinically, dual stents (an SG in the proximal and an MS in the distal of AAA) are used for treatment of AAA, but only a few studies have examined th...

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Autores principales:	Yuan Ding, Li Zhongyou, Jiang Wentao, Zhang Yinci, Wang Zhenze, Chen Yu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Thoracoabdominal Aortic Aneurysm SG Coverage Multilayer Stent (MS) Blood Vessel Branches Dual Stent Medicine R Science Q
Acceso en línea:	https://doaj.org/article/1ba9ac1308d74dcab39af96be30bee7b
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spelling	oai:doaj.org-article:1ba9ac1308d74dcab39af96be30bee7b2021-12-02T15:09:06ZStent graft coverage of dual-stent strategy in the management of abdominal aortic aneurysms10.1038/s41598-018-34354-22045-2322https://doaj.org/article/1ba9ac1308d74dcab39af96be30bee7b2018-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-34354-2https://doaj.org/toc/2045-2322Abstract Treating an abdominal aortic aneurysm (AAA) with a stent graft (SG) and a multilayer stent (MS) is a key technology in isolating flow fields. Clinically, dual stents (an SG in the proximal and an MS in the distal of AAA) are used for treatment of AAA, but only a few studies have examined the relationship between SG coverage and treatment effects. Through numerical simulation of the hemodynamics after SG and MS implantation, the SG coverage and position were simulated at 0% (0 mm), 25% (13.75 mm), 50% (27.5 mm), and 75% (41.25 mm). With increasing SG coverage, the pressure on the aneurysm sac wall and the flow of branch vessels gradually decreased, and the lower wall shear stress (WSS) gradually increased. The changes in pressure, lower WSS, and the mass flow rate of the branch vessels did not change significantly. The coverage of the SG has a nonsignificant effect on hemodynamics in the treatment of AAA; the implantation position need not be very precise. This research can provide theoretic support for clinicians’ decision-making.Yuan DingLi ZhongyouJiang WentaoZhang YinciWang ZhenzeChen YuNature PortfolioarticleThoracoabdominal Aortic AneurysmSG CoverageMultilayer Stent (MS)Blood Vessel BranchesDual StentMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-6 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Thoracoabdominal Aortic Aneurysm SG Coverage Multilayer Stent (MS) Blood Vessel Branches Dual Stent Medicine R Science Q
spellingShingle	Thoracoabdominal Aortic Aneurysm SG Coverage Multilayer Stent (MS) Blood Vessel Branches Dual Stent Medicine R Science Q Yuan Ding Li Zhongyou Jiang Wentao Zhang Yinci Wang Zhenze Chen Yu Stent graft coverage of dual-stent strategy in the management of abdominal aortic aneurysms
description	Abstract Treating an abdominal aortic aneurysm (AAA) with a stent graft (SG) and a multilayer stent (MS) is a key technology in isolating flow fields. Clinically, dual stents (an SG in the proximal and an MS in the distal of AAA) are used for treatment of AAA, but only a few studies have examined the relationship between SG coverage and treatment effects. Through numerical simulation of the hemodynamics after SG and MS implantation, the SG coverage and position were simulated at 0% (0 mm), 25% (13.75 mm), 50% (27.5 mm), and 75% (41.25 mm). With increasing SG coverage, the pressure on the aneurysm sac wall and the flow of branch vessels gradually decreased, and the lower wall shear stress (WSS) gradually increased. The changes in pressure, lower WSS, and the mass flow rate of the branch vessels did not change significantly. The coverage of the SG has a nonsignificant effect on hemodynamics in the treatment of AAA; the implantation position need not be very precise. This research can provide theoretic support for clinicians’ decision-making.
format	article
author	Yuan Ding Li Zhongyou Jiang Wentao Zhang Yinci Wang Zhenze Chen Yu
author_facet	Yuan Ding Li Zhongyou Jiang Wentao Zhang Yinci Wang Zhenze Chen Yu
author_sort	Yuan Ding
title	Stent graft coverage of dual-stent strategy in the management of abdominal aortic aneurysms
title_short	Stent graft coverage of dual-stent strategy in the management of abdominal aortic aneurysms
title_full	Stent graft coverage of dual-stent strategy in the management of abdominal aortic aneurysms
title_fullStr	Stent graft coverage of dual-stent strategy in the management of abdominal aortic aneurysms
title_full_unstemmed	Stent graft coverage of dual-stent strategy in the management of abdominal aortic aneurysms
title_sort	stent graft coverage of dual-stent strategy in the management of abdominal aortic aneurysms
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/1ba9ac1308d74dcab39af96be30bee7b
work_keys_str_mv	AT yuanding stentgraftcoverageofdualstentstrategyinthemanagementofabdominalaorticaneurysms AT lizhongyou stentgraftcoverageofdualstentstrategyinthemanagementofabdominalaorticaneurysms AT jiangwentao stentgraftcoverageofdualstentstrategyinthemanagementofabdominalaorticaneurysms AT zhangyinci stentgraftcoverageofdualstentstrategyinthemanagementofabdominalaorticaneurysms AT wangzhenze stentgraftcoverageofdualstentstrategyinthemanagementofabdominalaorticaneurysms AT chenyu stentgraftcoverageofdualstentstrategyinthemanagementofabdominalaorticaneurysms
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Stent graft coverage of dual-stent strategy in the management of abdominal aortic aneurysms

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