Extended Eversion Carotid Endarterectomy: Computation of Hemodynamics.
Ann Vasc Surg
; 29(8): 1598-605, 2015 Nov.
Article
en En
| MEDLINE
| ID: mdl-26319145
ABSTRACT
BACKGROUND:
Stroke prevention includes surgery for significant stenosis of internal carotid artery (ICA). Consensus on a standard approach lacks and one alternative approach is eversion carotid endarterectomy (eCEA). To overcome disadvantages of eCEA, we developed extended-eversion carotid endarterectomy (exeCEA). Aiming to investigate hemodynamics after different surgical approaches, we created computational fluid dynamics (CFD) models of exeCEA and eCEA with included progressing lumen narrowing, representation of artery restenosis at the incision line.METHODS:
Blood flow velocities, volume flow rates, and wall shear stress (WSS) were established in carotid arteries from models of eCEA and exeCEA with included increasing groove (1, 1.5, 2, and 2.5 mm) at the "incision line", under input pressure of 120 and 150 mm Hg.RESULTS:
For the corresponding restenosis grade, models of exeCEA had a larger orifice toward ICA, lower blood flow velocities and higher volume flow rates in ICA, with lower volume flow rates in external carotid artery. WSS values in ICA of exeCEA models were lower than in eCEA models, later reaching the thrombotic range.CONCLUSIONS:
CFD showed better hemodynamic properties in exeCEA models, indicating presented approach might be better at preserving brain perfusion.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Endarterectomía Carotidea
/
Estenosis Carotídea
Límite:
Female
/
Humans
/
Middle aged
Idioma:
En
Revista:
Ann Vasc Surg
Asunto de la revista:
ANGIOLOGIA
Año:
2015
Tipo del documento:
Article
País de afiliación:
Croacia