• Signe Østergaard Mortensen, Bolther PælestikMariaMDepartment of Clinical Medicine, Aarhus University, Aarhus, Denmark.Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark., Peter Carøe Lind, Mathias Johan Holmberg, Asger Granfeldt, Nikola Stankovic, and Lars Wiuff Andersen.
• Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.
• Acta Anaesthesiol Scand. 2024 Aug 1; 68 (7): 888897888-897.

BackgroundGeneral anesthesia is common, but concerns regarding post-operative complications and mortality remain. No study has described the Danish patient population undergoing general anesthesia on a national level. The aim of this study was to describe the characteristics and outcomes of patients undergoing general anesthesia in Denmark.MethodsThis study was a registry-based observational cohort study of adult patients (≥18 years) undergoing general anesthesia in Denmark during 2020 and 2021. Data from nationwide registries covering patient characteristics, anesthesia and procedure information, and patient outcomes were combined. Descriptive statistics were used to present findings, both overall and in subgroups based on the American Society of Anesthesiologists (ASA) classification.ResultsWe identified 453,133 cases of general anesthesia in 328,951 unique patients. The median age was 57 years (quartiles: 41, 71), and 242,679 (54%) were females. Data on ASA classification were missing for less than 1% of the population, and ASA II was the most prevalent ASA classification (49%). Among cases of general anesthesia, 0.1% experienced a stroke, 0.2% had in-hospital cardiac arrest, and 3.9% had a stay in the intensive care unit within 30 days. Mortality at 30 days and 1 year were 1.8% and 6.3%, respectively, increasing with a higher ASA classification.ConclusionThis study offers the first comprehensive overview of adult patients undergoing general anesthesia in Denmark. Post-anesthesia complications were few and increased with ASA classification.© 2024 The Authors. Acta Anaesthesiologica Scandinavica published by John Wiley & Sons Ltd on behalf of Acta Anaesthesiologica Scandinavica Foundation.

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