• E Lindqvist, G Edman, J Hollenberg, P Nordberg, U Ösby, and S Forsberg.
• Department of Anaesthesiology and Intensive Care, Norrtälje Hospital, Norrtälje, Sweden.
• Acta Anaesthesiol Scand. 2017 Nov 1; 61 (10): 1296-1304.

BackgroundPoisoning represents a significant part of admissions to intensive care units. The aim of this nationwide study was to describe recent national quality register data of demographics and mortality for these patients.MethodA retrospective national observational study including all patients over 19 years admitted to an ICU in Sweden, between 1 January 2010 and 31 December 2011, with an ICD-10 code for poisoning. The data were collected from three national registers (The Swedish Intensive Care Register, The National Patient Register, and The Cause of Death Register).ResultsThe incidence of ICU-treated poisonings was 43/100,000. Twenty-one per cent (n = 8155) of all poisoned patients seeking medical care were admitted to the ICU. Their median age was 38 years (q1-q3: 26-51), as many men as women and 46.5% (n = 3790) had a previous registered poisoning. A mix of different substances was the most common type of suspected poisoning (29.7%, n = 2424). The in-hospital mortality was 1.9% and was correlated to invasive mechanical ventilation (OR 6.91 CI 95% 4.59-10.42), age > 40 (OR 4.54 CI 95% 2.86-7.21) and no previous hospitalisation for poisoning (OR 3.23 CI 95% 2.06-5.07). For 78.3% (n = 119) of the deceased patients, the fatal poisoning was their first diagnosed poisoning. The 30-day mortality was 2.7%, a majority died from poisoning (P < 0.01).ConclusionIn Sweden, patients treated in the ICU due to poisoning represent a fifth of all poisoned patients seeking medical care. Older men with no previous poisoning were considered a high-risk group.© 2017 The Acta Anaesthesiologica Scandinavica Foundation. Published by John Wiley & Sons Ltd.

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