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Very urgent carotid endarterectomy confers increased procedural risk - PubMed

doi: 10.1161/STROKEAHA.111.639344. Epub 2012 Mar 15.

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Very urgent carotid endarterectomy confers increased procedural risk

Sofia Strömberg et al. Stroke. 2012 May.

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Abstract

Background and purpose: Current Swedish guidelines recommend that carotid endarterectomy should be performed within 14 days of a qualifying neurological event, but it is not clear if very urgent surgery after an event is associated with increased perioperative risk. The aim of this study was to determine how the time between the event and carotid endarterectomy affects the procedural risk of mortality and stroke.

Methods: We prospectively analyzed data on all patients who underwent carotid endarterectomies for symptomatic carotid stenosis between May 12, 2008, and May 31, 2011, with records in the Swedish Vascular Registry (Swedvasc). Patients were divided according to time between the qualifying event and surgery (0-2 days, 3-7 days, 8-14 days, 15-180 days). Stroke rate and mortality at 30 days postsurgery were determined.

Results: We analyzed data for 2596 patients and found that the combined mortality and stroke rate for patients treated 0 to 2 days after qualifying event was 11.5% (17 of 148) versus 3.6% (29 of 804), 4.0% (27 of 677), and 5.4% (52 of 967) for the groups treated at 3 to 7 days, 8 to 14 days, and 15 to 180 days, respectively. In a multivariate analysis, time was an independent risk factor for perioperative complications: patients treated at 0 to 2 days had a relative OR of 4.24 (CI, 2.07-8.70; P<0.001) compared with the reference 3- to 7-day group.

Conclusions: In this study of patients treated for symptomatic carotid disease, it was safe to perform surgery as early as Day 3 after a qualifying neurological event in contrast to patients treated within 0 to 2 days, which has a significantly increased perioperative risk.

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