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However, the lack of patient\u2010specific boundary conditions on the periphery compromises the accuracy. Windkessel (WK) boundary conditions coupled to hemodynamic follow\u2010up models of a PRAAA patient, aims to provide insights into the link between hemodynamics and poor prognosis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Method<\/jats:title><jats:p>One PRAAA patient underwent EVAR and reintervention after one branch of stent\u2010graft (SG) had migrated. Totally five computational follow\u2010up models were studied. Patient\u2010specific flow data acquired via ultrasound were used to define the boundary conditions in the ascending aorta and the following three branches. Coupled zero\u2010dimensional WK models representing the distal vasculature were used to define the outlet boundary conditions under the abdomen.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Flow divisions of the main SG branches were 40.7% and 24.7%, respectively. Time\u2010averaged wall shear stress and oscillatory shear index (OSI) increased at the junction connected the SG branch and the stent leading to the right common iliac artery (RCIA) where the stent migrated. The OSI and relative residence time (RRT) value in superior mesenteric artery increased notably after the migration, the RRT continuously increased following the reintervention.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Unbalanced flow, resulting in locally high\u2010speed flow, high WSS and OSI might significantly affect stent stability. Results suggest that diameters and interconnection design of stents in complex cases should take the flow division into consideration and computational simulations might be considered as a tool for intervention protocol design.<\/jats:p><\/jats:sec>","DOI":"10.1002\/cnm.3394","type":"journal-article","created":{"date-parts":[[2020,8,13]],"date-time":"2020-08-13T11:41:04Z","timestamp":1597318864000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Retrograde branched extension limb assembling stent of pararenal abdominal aortic aneurysm: A longitudinal hemodynamic analysis for stent graft migration"],"prefix":"10.1002","volume":"36","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3245-3867","authenticated-orcid":false,"given":"Yuqian","family":"Mei","sequence":"first","affiliation":[{"name":"School of Life Science Beijing Institute of Technology  Beijing 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