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01.12.2018 | Letter | Ausgabe 1/2018 Open Access

Critical Care 1/2018

Identification of developing multiple organ failure in sepsis patients with low or moderate SOFA scores

Critical Care > Ausgabe 1/2018
Gunnar Elke, Frank Bloos, Darius Cameron Wilson, Patrick Meybohm, the SepNet Critical Care Trials Group
An early identification of sepsis patients likely to progress towards multiple organ failure is crucial in order to initiate targeted therapeutic strategies to decrease mortality. Our recent publication highlighted the greater accuracy of mid-regional proadrenomedullin (MR-proADM) compared with conventional biomarkers and clinical scores in predicting 28-day mortality in patients with initially low (≤7 points; N = 240) or moderate (8–13 points; N = 653) Sepsis-related Organ Failure Assessment (SOFA) scores [ 1], thus confirming results from smaller investigations [ 2, 3]. This additional post hoc analysis aimed to further describe the non-surviving patient population of both subgroups and identify those likely to progress towards sepsis-related multiple organ failure.
In our study, patients with low SOFA scores had a lower 28-day mortality rate ( N = 35; 14.6% vs. N = 181; 27.7%) and incidence of septic shock [ 4] ( N = 87; 36.7% vs. N = 399; 61.5%) compared to those with moderate values. Nevertheless, multiple organ failure was the most common cause of death irrespective of initial SOFA classification (low vs. moderate SOFA: N = 16; 45.7% vs. N = 79; 43.6%). Patients with low SOFA scores tended to take longer to progress towards multiple organ failure (10 [6–18] vs. 7 [3–11] days) and had an increasing number of dysfunctional organs (identified by organ-specific SOFA scores ≥2) and an increasing overall SOFA score (e.g. diagnosis to day 7: 2 [1–2] vs. 4 [3–5] dysfunctional organs; P < 0.01; 6.3 ± 1.3 vs. 10.2 ± 4.7 points; P < 0.01).
Area under the receiver operating characteristic curve (AUROC) and Cox regression analysis indicated that MR-proADM had the highest accuracy in predicting progression towards sepsis-related multiple organ failure mortality in both groups (Fig.  1). High initial concentrations in non-surviving patients with low or moderate SOFA scores resulted in a high progression rate towards multiple organ failure ( N = 6; 100.0% and N = 25; 52.1%), with similar results found in patients with increasing concentrations over the first 24 h (e.g. moderate SOFA population: N = 15; 57.8%). Conversely, mortality in patients with low MR-proADM concentrations was predominantly due to non-sepsis-related causes ( N = 14; 60.9%), with a low subsequent progression rate towards sepsis-related multiple organ failure in the total patient population with continuously low concentrations over the first 24 h ( N = 3; 1.4%).
Results suggest that initially high or increasing MR-proADM concentrations may help to identify patients with a high risk of progression towards sepsis-related multiple organ failure. Elevated microcirculation dysfunction and endothelial permeability may therefore play a significant role in driving the development of further organ dysfunction, as described previously [ 5]. Further studies in larger patient populations are essential to confirm these hypotheses.


The SISPCT trial infrastructure was partially funded by grant 01 KI 0106 from the German Federal Ministry of Education and Research. Biosyn (Germany) and Thermo Fisher (Germany) provided study medication and financial support via unrestricted grants. For the purpose of this secondary analysis of the SISPCT trial, no specific funding was received. Neither for the original SISPCT trial nor for this secondary analysis did the funding organizations have any role in the design and conduct of the trial; collection, management, analysis, or interpretation of the data; preparation, review, or approval of the manuscript; or decision to submit the manuscript for publication.

Availability of data and materials

The datasets used or analyzed during the present study are available from the corresponding author on reasonable request.

Ethics approval and consent to participate

The study protocol of the Placebo Controlled Trial of Sodium Selenite and Procalcitonin Guided Antimicrobial Therapy in Severe Sepsis (SISPCT) was approved by the ethics board of Jena University Hospital (Internal File No. 2242–03/08). Written informed consent was obtained from all patients or their legal representatives.

Consent for publication

No individual participant data are reported that would require consent to publish from the participant (or legal parent or guardian for children).

Competing interests

FB reported receiving lecture honoraria from biosyn, Gilead, and CSL Behring and public funding for the SISPCT trial to his department by the German Federal Ministry of Education and Research as well as unrestricted research grants for the SISPCT trial by biosyn and Thermo Fisher Scientific. DCW is an employee of B·R·A·H·M·S GmbH. All other authors declared that they have no competing interests.

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