• Dtsch Arztebl Int · Nov 2020

    Diagnosis, Treatment and Follow-up in Extracranial Carotid Stenosis.

    • Hans-Henning Eckstein, Andreas Kühnl, Joachim Berkefeld, Holger Lawall, Martin Storck, and Dirk Sander.
    • Spokesman (HHE) and Secretary (AK) of the Steering Group, Department forf Vascular and Endovascular Surgery, University Hospital "rechts der Isar", Technical University of Munich; Member of the Steering Group, Institute for Neuroradiology, University Hospital Frankfurt; Member of the Steering Group, Ettlingen; Member of the Steering Group, Department of Vascular and Thoracic Surgery, Karlsruhe Municipal Hospital Member of the Steering Group, Department of Neurology and Stroke Unit, Benedictus Hospital Tutzing; German Vascular Society (DGG); German Society of Neuroradiology (DGNR); German Society for Angiology/Vascular Medicine (DGA); German Society of Surgery (DGCH); German Society of Neurology (DGN).
    • Dtsch Arztebl Int. 2020 Nov 20; 117 (47): 801807801-807.

    BackgroundAround 15% of cerebral ischemias are caused by lesions of the extracranial carotid artery. The goal of this guideline is to provide evidence- and consensus-based recommendations for the management of patients with extracranial carotid stenoses throughout Germany and Austria.MethodsA systematic literature search (1990-2019) and methodical assessment of existing guidelines and systematic reviews; consensus-based answers to 37 key questions with evidence-based recommendations.ResultsThe prevalence of extracranial carotid artery stenoses is around 4% overall, higher from the age of 65 years. The most important examination modality is duplex sonography. Randomized trials have shown that carotid endarterectomy (CEA) significantly reduces the 5-year risk of stroke in patients with 60-99 % asymptomatic stenoses (absolute risk reduction [ARR] 4.1% over 5 years, number needed to treat [NNT] 24) or 50-99% symptomatic stenoses (50-69%: ARR 4.6 % over 5 years, NNT 22; 70-99%: 15.9 % over 5 years, NNT 6). With the aid of intensive conservative treatment, the carotid artery-associated risk of stroke can be reduced to as little as 1% per year. Critical determination of indications and strict quality criteria are therefore necessary for CEA and carotid artery stenting (CAS). Systematic reviews of controlled trials comparing CEA and CAS show that the procedural risk of stroke is higher for CAS (asymptomatic: 2.6% versus 1.3%; symptomatic: 6.2% versus 3.8%). There are no differences in the long term. CEA is recommended as standard procedure for high-grade asymptomatic and moderate to high-grade symptomatic carotid artery stenoses; CAS may be considered as an alternative. For both procedures, the periprocedural combined rate of stroke or death should not exceed 2% for asymptomatic stenoses or 4% for symptomatic stenoses.ConclusionFuture studies should evaluate even better selection criteria for optimal individualized treatment, whether conservative, surgical, or endovascular.

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