Silent embolic infarcts on computed tomography brain scans and risk of ipsilateral hemispheric events in patients with asymptomatic internal carotid artery.

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Silent embolic infarcts on computed tomography brain scans and risk of ipsilateral hemispheric events in patients with asymptomatic internal carotid artery stenosis Stavros K. Kakkos, MD, MSc, PhD, RVT, Michael Sabetai, MD, FRCS, Thomas Tegos, MD, PhD, John Stevens, MB, BS, Dafydd Thomas, MA, MD, FRCP, Maura Griffin, MSc, PhD, George Geroulakos, FRCS, PhD, Andrew N. Nicolaides, MS, FRCS, PhD (Hon) Journal of Vascular Surgery Volume 49, Issue 4, Pages 902-909 (April 2009) DOI: 10.1016/j.jvs.2008.10.059 Copyright © 2009 The Society for Vascular Surgery Terms and Conditions

Fig 1 Typical examples of embolic infarction are shown, including (A) large cortical, (B) small cortical, (C) subcortical, and (D) basal ganglia infarct. Arrows show the corresponding brain infarct. Journal of Vascular Surgery 2009 49, 902-909DOI: (10.1016/j.jvs.2008.10.059) Copyright © 2009 The Society for Vascular Surgery Terms and Conditions

Fig 2 Ipsilateral hemispheric neurologic event-free rate is shown in 462 patients with 60% to 99% carotid artery stenosis in relation to“embolic” infarction on computed tomography (CT) brain scanning. The number of patients at risk at each interval is shown at the bottom of the figure. Journal of Vascular Surgery 2009 49, 902-909DOI: (10.1016/j.jvs.2008.10.059) Copyright © 2009 The Society for Vascular Surgery Terms and Conditions

Fig 3 Stroke-free rate is shown in 462 patients with 60% to 99% carotid artery stenosis in relation to “embolic” infarction on computed tomography (CT) brain scanning. The number of patients at risk at each interval is shown at the bottom of the figure. Journal of Vascular Surgery 2009 49, 902-909DOI: (10.1016/j.jvs.2008.10.059) Copyright © 2009 The Society for Vascular Surgery Terms and Conditions

Fig 4 Ipsilateral hemispheric transient ischemic attack (TIA) and stroke-free rate are shown in 216 patients with moderate (60% to 79%) carotid artery stenosis in relation to “embolic” infarction on computed tomography (CT) brain scanning. The number of patients at risk at each interval is shown at the bottom of the figure. Journal of Vascular Surgery 2009 49, 902-909DOI: (10.1016/j.jvs.2008.10.059) Copyright © 2009 The Society for Vascular Surgery Terms and Conditions

Fig 5 Ipsilateral hemispheric event-free rate is shown in 462 patients with 60% to 99% carotid artery stenosis in relation to “embolic” infarction, “non-embolic” infarction, and normal findings on computed tomography (CT) brain scanning. No difference between the last two groups was found. The number of patients at risk at each interval is shown at the bottom of the figure. Journal of Vascular Surgery 2009 49, 902-909DOI: (10.1016/j.jvs.2008.10.059) Copyright © 2009 The Society for Vascular Surgery Terms and Conditions