Spontaneous Echo Contrast and Thrombus Formation at the Carotid Bifurcation After Carotid Endarterectomy

Kawabori, Masahito; Yoshimoto, Tetsuyuki; Ito, Masaki; Fujimoto, Shin; Mikami, Taisei; Muraki, Mutsuko; Kaneko, Sadao; Nakayama, Naoki; Kuroda, Satoshi; Houkin, Kiyohiro

Spontaneous Echo Contrast and Thrombus Formation at the Carotid Bifurcation After Carotid Endarterectomy

Kawabori, Masahito; Yoshimoto, Tetsuyuki; Ito, Masaki et al.

Neurologia medico-chirurgica, 2012, 52(12), 885-891

Permalink : https://hdl.handle.net/2115/70778

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アクセス権	open access
URI	https://hdl.handle.net/2115/70778
タイトル	Spontaneous Echo Contrast and Thrombus Formation at the Carotid Bifurcation After Carotid Endarterectomy
著者	Kawabori, Masahito ; Yoshimoto, Tetsuyuki ; Ito, Masaki ; Fujimoto, Shin ; Mikami, Taisei ; Muraki, Mutsuko ; Kaneko, Sadao ; Nakayama, Naoki ; Kuroda, Satoshi ; Houkin, Kiyohiro
e-Rad_Researcher 50399870 著者名 Kawabori, Masahito
著者名 Yoshimoto, Tetsuyuki
著者名 Ito, Masaki
著者名 Fujimoto, Shin
e-Rad_Researcher 90250456 著者名 Mikami, Taisei
著者名 Muraki, Mutsuko
著者名 Kaneko, Sadao
e-Rad_Researcher 40421961 著者名 Nakayama, Naoki
e-Rad_Researcher 10301904 著者名 Kuroda, Satoshi
e-Rad_Researcher 90229146 著者名 Houkin, Kiyohiro
言語	英語
キーワード	carotid endarterectomy
	thrombosis
	ultrasonography
	spontaneous echo contrast
	anticoagulant therapy
発行日	2012-12
出版者	The Japan Neurosurgical Society
収録物名	Neurologia medico-chirurgica
巻(号)	52(12)
ページ	885-891
抄録	Spontaneous echo contrast (SEC) consists of numerous microechoes swirling in the cardiovascular lumen and is usually seen during blood stasis in dysfunctional left atrium. However, SEC and consecutive local thrombus formation at the carotid artery early after carotid endarterectomy (CEA) have not been reported. This study retrospectively investigated the clinical importance and therapeutic strategy of postoperative SEC and thrombus formation in 113 consecutive patients who underwent CEA between 2001 and 2009. Ultrasonography was routinely performed preoperatively, intraoperatively, and 1 day and 1 week after the operation. If SEC and/or thrombus was detected at any time after the operation, follow-up ultrasonography was performed at short intervals, once a week for inpatients and once every 1-2 months for outpatients. Eight of the 113 patients (7%) had SEC after the operation from Day 1 to 12 (mean 7.2 days), and 6 of these 8 patients developed local de novo thrombus formation at the site of SEC from Day 6 to 33 (mean 14.7 days). The maximum luminal narrowing by the thrombi were 26-62% (mean 37%). After administering anticoagulant therapy, all thrombi disappeared from Day 13 to 190 (mean 57 days) from CEA. SEC seen after CEA is highly associated with consecutive local thrombus formation. Postoperative geometric blood stasis with the absence of intima may be the causative factor for its development.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
PISSN	0470-8105
EISSN	1349-8029
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.2176/nmc.52.885