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  • Title: Weekend effect among patients undergoing elective vascular surgery.
    Author: Galyfos G, Sigala F, Bazigos G, Filis K.
    Journal: J Vasc Surg; 2019 Dec; 70(6):2038-2045. PubMed ID: 31147130.
    Abstract:
    OBJECTIVE: Several studies have described a higher mortality among patients admitted or operated during the weekend for various diseases. However, pooled data on patients undergoing elective vascular surgery procedures are sparse. METHODS: The PubMed, Embase, Scopus, and Cochrane Library databases were systematically searched to identify eligible studies. Studies comparing short-term mortality (≤30 days) between patients undergoing elective vascular surgery during the weekend and working days were included. When studies included patients undergoing mixed types of surgery, only the vascular surgery subgroups were evaluated. Urgent/emergency vascular procedures were excluded according to certain definitions provided by each study. Data were analyzed by using the StatsDirect Statistical software (Version 2.8.0, StatsDirect Ltd, Cambridge, UK). RESULTS: Overall, four retrospective studies including 131,201 patients undergoing elective vascular surgery (on working days, n = 130,163; on the weekend, n = 1038) were evaluated. The pooled short-term mortality risk was higher among patients operated during the weekend compared with working days (odds ratio [OR], 2.41; 95% confidence interval [CI], 1.58-3.67; P = .0004). This weekend effect was more evident among patients undergoing abdominal aortic aneurysm repair and carotid surgery (OR, 3.62 [95% CI, 1.49-8.82; P = .0046] and OR, 3.48 [95% CI, 1.15-10.54; P = .027], respectively). In the United States, the weekend effect was more evident among patients undergoing aortic aneurysm repair (OR, 3.61; 95% CI, 1.99-6.53; P < .0001). However, data from Canada originated from one study on patients undergoing carotid and peripheral arterial surgery only. CONCLUSIONS: Elective vascular surgery is associated with a higher short-term mortality risk when conducted over the weekend. Improvement of perioperative management during these days may be necessary to improve outcomes.
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