Impact of weekend treatment on short-term and long-term survival after urgent repair of ruptured aortic aneurysms in Germany.

There is some evidence that weekend admission to the hospital is associated with worse outcomes compared with weekday admission. However, only a few studies have focused on weekend vs weekday surgery outcomes. This study aimed to determine whether there is a weekend effect on outcomes in the treatment of ruptured aortic aneurysms in Germany. Health insurance claims of Germany's third largest insurance provider, DAK-Gesundheit, were used to investigate short-term and long-term mortality after weekend vs weekday treatment of ruptured aortic aneurysm. Patients undergoing endovascular repair (ER) or open surgical repair (OSR) between January 2008 and December 2016 were included in the study. Both propensity score matching and regression methods were used to adjust for confounding. There were 1477 patients in the cohort, of whom 517 (35.0%) underwent ER and 960 (65.0%) OSR. Overall, 995 (67.4%) patients underwent an operation on weekdays (Monday to Thursday), and 482 (32.6%) patients underwent an operation on a weekend (Friday to Sunday). In multivariable models, patients who underwent an operation on a weekend were at higher risk of in-hospital death after OSR (49.2% vs 38.0%; odds ratio [OR], 1.61; P = .001), and there was a trend toward higher in-hospital mortality after ER (29.5% vs 21.2%; OR, 1.55; P = .056). The ER of thoracic or thoracoabdominal aortic ruptures was associated with significantly higher in-hospital mortality compared with ER of abdominal aortic aneurysm (OR, 1.69; P = .026). Weekend repairs of ruptured aortic aneurysms are associated with worse in-hospital survival compared with weekday surgery. ER of thoracic or thoracoabdominal aortic ruptures is associated with worse in-hospital survival compared with ER of ruptured abdominal aortic ruptures. This might be an international phenomenon requiring joint learning and action in times of centralization of aortic procedures.

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