• Annette M Moisander, Konsta Pamilo, Jukka Huopio, Hannu Kautiainen, Anne Kuitunen, and Juha Paloneva.
• Department of Anesthesia and Intensive Care, Hospital Nova, Wellbeing Services County of Central Finland, Jyväskylä, Finland.
• Acta Anaesthesiol Scand. 2024 Mar 26.

Background And PurposeUse of thromboprophylaxis effectively prevents pulmonary embolism (PE) and deaths after total hip and knee arthroplasty (THA and TKA). The optimum length of thromboprophylaxis is not known and has traditionally been based on the type of operation. Nowadays, a more individualized approach is preferred. This study analyzed if risk stratification-based planning of thromboprophylaxis has an association with the all-cause mortality after fast-track THA and TKA.Patients And MethodsWe compared fast-track THAs and TKAs operated between 2015-2016 and 2020-2021. Between 2015 and 2016, all patients received a routine length of thromboprophylaxis. From 2020 onwards, thromboprophylaxis was planned by risk stratification, and patients at low risk for venous thromboembolism received thromboprophylaxis only during hospitalization. All causes of death within 90 days of surgery were identified and the incidence of mortality was calculated. Mortality rates between the two periods were then compared.ResultsBetween 2015 and 2016, 3192 arthroplasties were performed. A total of eight deaths occurred within 90 days of surgery, yielding an incidence of all-cause mortality of 0.3% (95% CI 0.1-0.5). Between 2020 and 2021, a total of 3713 arthroplasties were performed to patients who received risk stratification-based thromboprophylaxis. Thirteen of these patients died within 90 days of surgery, yielding an all-cause mortality incidence of 0.4% (95% CI 0.2-0.6). Cardiovascular diseases were the main cause of death during both study periods. None of the deaths were caused by PEs.InterpretationRisk stratification-based thromboprophylaxis was not associated with increased all-cause mortality within 90 days of fast-track THA and TKA.© 2024 The Authors. Acta Anaesthesiologica Scandinavica published by John Wiley & Sons Ltd on behalf of Acta Anaesthesiologica Scandinavica Foundation.

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