• Stroke · Apr 2017

    Intraoperative Completion Studies, Local Anesthesia, and Antiplatelet Medication Are Associated With Lower Risk in Carotid Endarterectomy.

    • Christoph Knappich, Andreas Kuehnl, Pavlos Tsantilas, Sofie Schmid, Thorben Breitkreuz, Michael Kallmayer, Alexander Zimmermann, and Hans-Henning Eckstein.
    • From the Department of Vascular and Endovascular Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany (C.K., A.K., P.T., S.S., M.K., A.Z., H.-H.E.); and AQUA-Institut für angewandte Qualitätsförderung und Forschung im Gesundheitswesen GmbH, Göttingen, Germany (T.B.).
    • Stroke. 2017 Apr 1; 48 (4): 955-962.

    Background And PurposeIn Germany, all surgical and endovascular procedures on the carotid bifurcation must be documented in a statutory nationwide quality assurance database. We aimed to analyze the association between procedural and perioperative variables and in-hospital stroke or death rates after carotid endarterectomy.MethodsBetween 2009 and 2014, overall 142 074 elective carotid endarterectomy procedures for asymptomatic or symptomatic carotid artery stenosis were documented in the database. The primary outcome of this secondary data analysis was in-hospital stroke or death. Major stroke or death, stroke, and death, each until discharge were secondary outcomes. Adjusted relative risks (RRs) were assessed by multivariable multilevel regression analyses.ResultsThe primary outcome occurred in 1.8% of patients, with a rate of 1.4% in asymptomatic and 2.5% in symptomatic patients, respectively. In the multivariable analysis, lower risks of stroke or death were independently associated with local anesthesia (versus general anesthesia: RR, 0.85; 95% confidence interval [CI], 0.75-0.95), carotid endarterectomy with patch plasty compared with primary closure (RR, 0.71; 95% CI, 0.52-0.97), intraoperative completion studies by duplex ultrasound (RR, 0.74; 95% CI, 0.63-0.88) or angiography (RR, 0.80; 95% CI, 0.71-0.90), and perioperative antiplatelet medication (RR, 0.83; 95% CI, 0.71-0.97). No shunting and a short cross-clamp time were also associated with lower risks; however, these are suspected to be confounded.ConclusionsLocal anesthesia, patch plasty compared with primary closure, intraoperative completion studies by duplex ultrasound or angiography, and perioperative antiplatelet medication were independently associated with lower in-hospital stroke or death rates after carotid endarterectomy.© 2017 American Heart Association, Inc.

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