Neurologia medico-chirurgica
Online ISSN : 1349-8029
Print ISSN : 0470-8105
Original Articles
Incidence of Ischemic Lesions by Diffusion-Weighted Imaging After Carotid Endarterectomy With Routine Shunt Usage
Tomohiro INOUEKazuo TSUTSUMIKeiitirou MAEDAShinobu ADACHIShota TANAKAKyoko YAKOKuniaki SAITONaoto KUNII
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JOURNALS OPEN ACCESS

Volume 46 (2006) Issue 11 Pages 529-534

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Abstract

Temporary intraluminal shunt was used during 72 consecutive carotid endarterectomies (CEAs) in 61 patients (bilateral CEA in 11 patients) during October 2001 and September 2005. The medical records of these patients were retrospectively reviewed. All procedures were performed with routine shunt insertion without monitoring such as electroencephalography. Pre- and postoperative diffusion-weighted magnetic resonance (MR) imaging was used to detect ischemic complications. Postoperative angiography was performed in 70 cases to detect abnormalities such as major stenosis or dissection of the distal end. Symptomatic ischemic complication occurred in one patient at 1 month. Postoperative diffusion-weighted MR imaging detected new hyperintense lesions in three patients including the symptomatic patient. Postoperative angiography confirmed that the distal end was satisfactory in all cases. The incidence of ischemic lesions of embolic origin after CEA with routine shunt usage is acceptably low if the procedure of shunt device insertion and removal is meticulously conducted.

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