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A rational algorithm for duplex scan surveillance after carotid endarterectomy  Steven M. Roth, MD, Martin R. Back, MD, Dennis F. Bandyk, MD, Anthony J.

Published byKauko Hämäläinen Modified over 5 years ago

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Presentation on theme: "A rational algorithm for duplex scan surveillance after carotid endarterectomy  Steven M. Roth, MD, Martin R. Back, MD, Dennis F. Bandyk, MD, Anthony J."— Presentation transcript:

1 A rational algorithm for duplex scan surveillance after carotid endarterectomy 
Steven M. Roth, MD, Martin R. Back, MD, Dennis F. Bandyk, MD, Anthony J. Avino, MD, Victoria Riley, BS, Brad L. Johnson, MD  Journal of Vascular Surgery  Volume 30, Issue 3, Pages (September 1999) DOI: /S (99) Copyright © 1999 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

2 Fig. 1 Duplex scan findings of operated internal carotid artery (ICA) on initial postoperative study and at last follow-up examination. Six carotid endarterectomy sites had >50% stenosis develop after carotid endarterectomy. A/B, <16% Diameter reduction (DR) stenosis; C, 16% to 49% DR stenosis; D, 50% to 74% DR stenosis; D+, 75% to 99% DR stenosis; E, carotid artery occlusion; N, number of patients. Journal of Vascular Surgery  , DOI: ( /S (99) ) Copyright © 1999 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

3 Fig. 2 Cumulative percent of disease progression over time of operated and unoperated carotid artery. Contralateral disease progression of carotid artery was more frequent event than ipsilateral recurrent stenosis, and scale was adjusted to emphasize this difference. Journal of Vascular Surgery  , DOI: ( /S (99) ) Copyright © 1999 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

4 Fig. 3 Contralateral disease progression of unoperated carotid artery. Increase or stability of carotid stenosis classification to >50% diameter reduction (DR) stenosis after carotid endarterectomy until last follow-up duplex scan. A/B, <16% DR stenosis; C, 16% to 49% DR stenosis; D, 50% to 74% DR stenosis; D+, 75% to 99% DR stenosis; E, carotid artery occlusion; N, number of patients; CEAs, carotid endarterectomies; CVA, cerebral vascular accident. Journal of Vascular Surgery  , DOI: ( /S (99) ) Copyright © 1999 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

5 Fig. 4 University of South Florida algorithm of duplex scan surveillance after carotid endarterectomy on basis of intraoperative duplex scan findings and severity of contralateral carotid artery stenosis. DR, Diameter reduction; CEA, carotid endarterectomy. Journal of Vascular Surgery  , DOI: ( /S (99) ) Copyright © 1999 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

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