• Ragnhild G Rosland, Marte U Hagen, Nicolai Haase, Lars B Holst, Morten Plambech, Kristian R Madsen, Peter Søe-Jensen, Lone M Poulsen, Morten Bestle, and Anders Perner.
• Department of Intensive Care, Copenhagen University Hospital, Rigshospitalet, Denmark. anders.perner@regionh.dk.
• Scand J Trauma Resus. 2014 Jan 1;22:14.

BackgroundTreating anaemia with red blood cell (RBC) transfusion is frequent, but controversial, in patients with septic shock. Therefore we assessed characteristics and outcome associated with RBC transfusion in this group of high risk patients.MethodsWe did a prospective cohort study at 7 general intensive care units (ICUs) including all adult patients with septic shock in a 5-month period.ResultsNinety-five of the 213 included patients (45%) received median 3 (interquartile range 2-5) RBC units during shock. The median pre-transfusion haemoglobin level was 8.1 (7.4-8.9) g/dl and independent of shock day and bleeding. Patients with cardiovascular disease were transfused at higher haemoglobin levels. Transfused patients had higher Simplified Acute Physiology Score (SAPS) II (56 (45-69) vs. 48 (37-61), p = 0.0005), more bleeding episodes, lower haemoglobin levels days 1 to 5, higher Sepsis-related Organ Failure Assessment (SOFA) scores (days 1 and 5), more days in shock (5 (3-10) vs. 2 (2-4), p = 0.0001), more days in ICU (10 (4-19) vs. 4 (2-8), p = 0.0001) and higher 90-day mortality (66 vs. 43%, p = 0.001). The latter association was lost after adjustment for admission category and SAPS II and SOFA-score on day 1.ConclusionsThe decision to transfuse patients with septic shock was likely affected by disease severity and bleeding, but haemoglobin level was the only measure that consistently differed between transfused and non-transfused patients.

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