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  • Title: Re-evaluation of carotid duplex for visual complaints: who really needs to be studied?
    Author: Wakefield MC, O'Donnell SD, Goff JM.
    Journal: Ann Vasc Surg; 2003 Nov; 17(6):635-40. PubMed ID: 14534847.
    Abstract:
    Amaurosis fugax (AF), Hollenhorst plaques, central retinal artery occlusion (CRAO), and nonspecific visual symptoms are all reasons for patient referral for carotid artery evaluation. This study reviews the management of patients with visual signs or symptoms based on their clinical presentation, carotid duplex results, follow-up data, and outcome. We performed a retrospective review of all patients presenting to the Vascular Surgery Clinic between June 1996 and December 2001 for carotid duplex scanning because of the indication of a visual disturbance. A total of 3560 carotid duplex examinations were performed during the study period; 98 were performed for a visual complaint or finding. A total of 11.1% of group 1 (Hollenhorst plaques), 22.2% in group 2 (CRAO), 45% in group 3 (AF), and 9.8% in group 4 (nonspecific visual symptoms) had significant carotid disease and underwent carotid endarterectomy. No patient who underwent screening carotid duplex and did not have surgically correctable disease developed significant carotid disease or symptoms from carotid disease during the study period. Hollenhorst plaques, CRAO, and nonspecific visual complaints are a poor predictor of significant carotid stenosis, while AF had a significantly higher rate of surgically correctable carotid stenosis. Patients with visual signs or symptoms need an initial screening carotid duplex examination. If this does not show surgically correctable disease, patients do not need to return for further examinations unless another indication arises.
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