• Emmanuel Dudoignon, Thomas Quennesson, Christian De Tymowski, Nabila Moreno, Maxime Coutrot, Maïté Chaussard, Lucie Guillemet, Sonia Abid, Alexandre Fratani, Quentin Ressaire, Alexandru Cupaciu, Vagh Weinmann, Alexandre Pharaboz, Mourad Benyamina, Alexandre Mebazaa, Matthieu Legrand, François Depret, Benjamin Deniau, and PRONOBURN Group.
• Assistance Publique-Hôpitaux de Paris (AP-HP), Groupe Hospitalier St Louis-Lariboisière, Department of Anesthesiology and Critical Care and Burn Unit, Paris, France; University Paris Diderot, Paris, France; FHU PROMICE, Paris, France. Electronic address: emmanuel.dudoignon@aphp.fr.
• Burns. 2022 Dec 1; 48 (8): 183618441836-1844.

IntroductionLactate albumin ratio (LAR) has been used as a prognostic marker associated with organ failure in critically ill septic patients. LAR and its association with outcomes has never been studied in burned patients. The aim of this study was to evaluate the ability of LAR to predict 28-day mortality.MethodsA retrospective cohort study including all burn patients hospitalized in intensive care unit. The primary endpoint was the 28-day mortality.ResultsOne thousand three hundred thirty four patients were screened, and 471 were included between June 2012 and December 2018. Briefly, the population study was mainly composed by men (249, 59.1%), the median age, TBSA burned, full thickness, ABSI and IGS2 were 52 [34-68], 20 [10-40], 8 [1-23], 7 [5-9] and 25 [15-40] respectively. Fifty-two patients (12.4%) died at day 28 after admission. At admission, the LAR level was lower in 28-day survivors compared non-survivors (0.05 [0.04, 0.08] vs 0.12 [0.07, 0.26], p < 0.001 respectively). In multivariate analysis accounting for ABSI, LAR levels at admission> 0.13 was independently associated with 28-day mortality (adjusted OR = 3.98 (IC95 1.88-8.35)). The ability of LAR at admission to discriminate 28-day mortality showed an AUC identical when compared to SOFA and ABSI scores (0.81 (IC95 0.74-0.88), 0.80 (IC95 0.72-0.85) and (0.85 (IC95 0.80-0.90), p < 0.05, respectively). Patients with LAR levels ≥ 0.13 at admission had higher 28-day mortality (40.6% vs 6.8%, p < 0.001, HR 7.39 (IC95 4.28-12.76)).ConclusionAt admission, LAR is an easy and reliable marker independently associated to 28-day mortality in patients with severe burn injury, but prediction by LAR does not perform better than lactate level alone.Copyright © 2022 Elsevier Ltd and ISBI. All rights reserved.

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