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  • Title: [Effectiveness of endarterectomy for symptomatic stenosis of the internal carotid artery; more risk factors important than only the severity of the stenosis].
    Author: Klijn CJ, Hoefnagels WA, Brouwers PJ, Luijckx GJ, Moll FL, Kappelle LJ.
    Journal: Ned Tijdschr Geneeskd; 2007 Dec 15; 151(50):2770-5. PubMed ID: 18232195.
    Abstract:
    Carotid endarterectomy prevents ischaemic stroke in patients who have suffered either a transient ischaemic attack (TIA) or a non-disabling ischaemic stroke and are also diagnosed with severe stenosis of the internal carotid artery (ICA). In order to prevent the occurrence ofa single stroke, 6 patients with a symptomatic 70 to 99% ICA stenosis will have to be operated upon. A meta-analysis of individual patient data from 3 randomised trials shows that the decision whether to advise endarterectomy to an individual patient should not be based solely on the degree of the ICA stenosis, but also on the time interval between symptoms and surgery, the type and severity of symptoms and the plaque morphology. In general, endarterectomy is more effective in men than in women, it is very effective in the elderly, and it is even more effective when performed within two weeks of the symptoms occurring. A decision scheme has been set up enabling one to predict the absolute risk of an ipsilateral stroke in the next 5 years in individual patients who have symptomatic ICA stenosis. This is based on 5 factors: sex, age, the most severe symptom in the last 6 months (stroke, TIA, or ischaemic retinopathy), the number of weeks since the last incident and the morphological characteristics of the plaque.
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