BACKGROUND AND PURPOSE: International recommendations advocate that carotid endarterectomy (CEA) should be performed within 2 weeks from the index event in symptomatic carotid artery stenosis (sCAS) patients. However, there are controversial data regarding the safety of CEA performed during the first 2 days of ictus. The aim of this international, multicenter study was to prospectively evaluate the safety of urgent (0-2 days) in comparison to early (3-14 days) CEA in patients with sCAS. METHODS: Consecutive patients with non-disabling (modified Rankin Scale scores ≤2) acute ischaemic stroke or transient ischaemic attack due to sCAS (≥70%) underwent urgent or early CEA at five tertiary-care stroke centers during a 6-year period. The primary outcome events included stroke, myocardial infarction or death during the 30-day follow-up period. RESULTS: A total of 311 patients with sCAS underwent urgent (n = 63) or early (n = 248) CEA. The two groups did not differ in baseline characteristics with the exception of crescendo transient ischaemic attacks (21% in urgent vs. 7% in early CEA; P = 0.001). The 30-day rates of stroke did not differ (P = 0.333) between patients with urgent (7.9%; 95% confidence interval 3.1%-17.7%) and early (4.4%; 95% confidence interval 2.4%-7.9%) CEA. The mortality and myocardial infarction rates were similar between the two groups. The median length of hospitalization was shorter in urgent CEA [6 days (interquartile range 4-6) vs. 10 days (interquartile range 7-14); P < 0.001]. CONCLUSIONS: Our findings highlight that urgent CEA performed within 2 days from the index event is related to a non-significant increase in the risk of peri-procedural stroke. The safety of urgent CEA requires further evaluation in larger datasets.

2nd Department of Anaesthesiology School of Medicine 'Attikon' Hospital University of Athens Athens Greece

2nd Department of Neurology School of Medicine 'Attikon' Hospital University of Athens Athens Greece

Acute Stroke Unit Metropolitan Hospital Piraeus Greece

Department of Neurology St Anne's University Hospital in Brno and Masaryk University Brno Czech Republic

Department of Neurology St Josef Hospital Ruhr University Bochum Germany

Department of Vascular Surgery School of Medicine 'Attikon' Hospital University of Athens Athens Greece

Department of Vascular Surgery School of Medicine Democritus University of Thrace Alexandroupolis Greece

Department of Vascular Surgery St Josef Hospital Ruhr University Bochum Germany

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