• Thomas Nolin and Sten Walther.
• Department of Anaesthesiology, Central Hospital, Kristianstad, Sweden.
• Acta Anaesthesiol Scand. 2021 Sep 1; 65 (8): 1095-1101.

BackgroundLife-sustaining treatment limitation (LSTL) on the intensive care unit (ICU) may affect the rate of organ donation after brain death (DBD). The primary aim of this study was to examine whether there is a relationship between LSTL and DBD. Furthermore, we aimed to determine the rate of LSTL involved in ICU deaths and to describe technical and procedural characteristics of LSTL on Swedish ICUs.MethodsThis was an observational cohort study on all ICU deaths (n = 13 156) in Sweden between 2014 and 2017. We analysed differences in DBD rates between deaths in ICU with and those without LSTL, using descriptive statistics and logistic regression.ResultsAfter excluding 1084 deaths on specialised ICUs and units not registering goals of treatment, the study population comprised 12 072 deaths including 615 DBDs, of which 7865 had LSTL, 1706 had no LSTL and 2501 had no stated goals of treatment. The final cohort on which the relationship between DBD and LSTL was analysed comprised 9571 deaths including 419 DBDs. When no LSTL was documented, the rate of organ donation was 9.5% compared to 3.3% when LSTL was documented (P < .001). LSTL was associated with a lower DBD rate after adjusting for patient- and ICU-related factors (OR 0.41, 95% CI 0.31-0.53, P < .001).ConclusionThere was an inverse relationship between LSTL and DBD amongst patients who died on the ICU. This relationship remained after adjusting for factors known to influence organ donation. The reason remains to be determined.© 2021 The Acta Anaesthesiologica Scandinavica Foundation. Published by John Wiley & Sons Ltd.

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