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Background Carotid endarterectomy (CEA) is an established procedure for the treatment of extracranial internal carotid artery stenosis. However, the type of anesthesia during elective CEA is still under debate. This study analyzes the association between the hospital policy on local anesthesia (LA) versus general anesthesia, and the outcome of elective CEA in German hospitals. Methods This retrospective analysis is based on the nationwide German statutory carotid quality assurance database for the years 2012 to 2016. Research was funded by Germany's Federal Joint Committee Innovation Fund (funding reference number 01VSF19016). Emergency CEA and carotid stenting procedures were excluded from the analysis. A total of 119 800 patients remained in the analysis. Hospitals were classified on a yearly basis as routine general anesthesia (90% LA). The primary outcome event was the combined in‐hospital rate of stroke or death. Secondary outcome events were in‐hospital stroke, major stroke or death, death, myocardial infarction, and major adverse cardiovascular events. Univariate and multivariable regression analyses were performed to analyze associations between the primary outcome event and the hospital policy on LA versus general anesthesia as well as clinical or procedural variables. Results Patient characteristics did not differ significantly between the groups (age, degree of stenosis, and rate of symptomatic patients). Raw primary outcome event rates were 1.9%, 2.1%, and 1.6% in routine general anesthesia, selective LA, and routine LA centers, respectively. Multivariable analysis revealed a significant lower rate of the primary outcome event for CEA operated under LA (adjusted odds ratio, 0.47 [95% CI, 0.33–0.67]; P |
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