Computational Fluid-Dynamic Analysis after Carotid Endarterectomy: Patch Graft versus Direct Suture Closure
نویسندگان
چکیده
منابع مشابه
Computational fluid-dynamic analysis of carotid bifurcations after endarterectomy: closure with patch graft versus direct suture
Objectives This study aims at comparing by means of computational fluid-dynamics (CFD) the hemodynamics before and after carotid endarterectomy (CEA), and, after CEA, between patch graft (PG) and direct suture (DS) closures. Design We analyzed wall shear stress (WSS), velocities, and vorticity before and after CEA, to highlight the effect of surgery on hemodynamics, and time averaged WSS (TAWSS...
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Transient three-dimensional laminar incompressible dilute suspension flow in rigid in-plane carotid artery bifurcations has been solved with a user-enhanced finite-volume program. Instantaneous velocity vector and wall shear stress vector fields illustrate strong "disturbed flow" patterns. Implications of elevated surface contours of hemodynamic wall parameters, indicating such disturbed flows,...
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INTRODUCTION The practice of carotid endarterectomy (CEA) with patch angioplasty is more effective compared to primary closure. However, the type of patch material remains a controversy. The Fluoropassiv thin wall carotid patch is a polyester patch with an interpenetrating, nanometer-scale, solvent-applied surface modification, based on a biocompatible fluoropolymer. The present pilot study is ...
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BACKGROUND AND PURPOSE Several authorities have recently advocated carotid stenting for recurrent carotid stenosis because of the perception that redo surgery has a higher complication rate than primary carotid endarterectomy (CEA). This study compares the early and late results of reoperations versus primary CEA. METHODS All reoperations for recurrent carotid stenosis performed during a rece...
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A prospective study was undertaken in March 1980, at the Vascular Surgery Department of the Padua University, Medical School, to establish whether patch graft angioplasty is useful in preventing restenosis after carotid endarterectomy (CE). Seventy-four patients underwent 86 CE (bilateral in 12 cases) for atherosclerotic disease involving the carotid bifurcation. Thirty-eight (51.4%) patients p...
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ژورنال
عنوان ژورنال: Annals of Vascular Surgery
سال: 2017
ISSN: 0890-5096
DOI: 10.1016/j.avsg.2017.04.016