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Medizinische Klinik - Intensivmedizin und Notfallmedizin

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01.04.2013 | Originalien

Enteral nutrition is associated with improved outcome in patients with severe sepsis

A secondary analysis of the VISEP trial

verfasst von: Dr. G. Elke, E. Kuhnt, M. Ragaller, D. Schädler, I. Frerichs, F.M. Brunkhorst, M. Löffler, K. Reinhart, N. Weiler, for the German Competence Network Sepsis (SepNet)

Erschienen in: Medizinische Klinik - Intensivmedizin und Notfallmedizin | Ausgabe 3/2013

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Abstract

Introduction

The optimal nutritional strategy remains controversial, particularly in severely septic patients. Our aim was to analyze the effect of three nutritional strategies—enteral (EN), parenteral (PN), and combined nutrition (EN+PN)—on the outcome of patients with severe sepsis or septic shock.

Patients and methods

This secondary analysis of the prospective, randomized–controlled, multicenter “Intensive Insulin Therapy and Pentastarch Resuscitation in Severe Sepsis (VISEP)” trial only included patients with a length of stay in the intensive care unit (ICU) of more than 7 days. Besides patient characteristics, data on nutrition therapy were collected daily for up to 21 days. Morbidity as measured by the mean Sequential Organ Failure Assessment (SOFA) score, incidence of secondary infections, renal replacement therapy, ventilator-free days and severe hypoglycemia, length of ICU stay, and mortality at 90 days were compared between the three nutritional strategies.

Results

In all, 353 patients were included in the analysis with the majority (68.5 %) receiving EN+PN, 24.4 % receiving EN, and only 7.1 % receiving PN. Median caloric intake was 918 kcal/day (EN), 1,210 kcal/day (PN), and 1,343 kcal/day (EN+PN; p < 0.001). In the latter group, calories were predominantly administered via the parenteral route within the first week. The rate of death at 90 days was lower with EN than with EN+PN (26.7 % vs. 41.3 %, p = 0.048), as was the rate of secondary infections, renal replacement therapy, and duration of mechanical ventilation. In the adjusted Cox regression analysis, the effect on mortality [hazard ratio (HR) = 1.86, 95 % confidence interval (CI): 1.16–2.98, p = 0.010] and the rate of secondary infections (HR = 1.89, 95 % CI: 1.27–2.81, p = 0.002) remained different between EN and EN+PN.

Conclusion

In patients with severe sepsis or septic shock and prolonged ICU stay, EN alone was associated with improved clinical outcome compared to EN+PN. This hypothesis-generating result has to be confirmed by a randomized-controlled trial in this specific patient population.

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Titel: Enteral nutrition is associated with improved outcome in patients with severe sepsis
A secondary analysis of the VISEP trial
verfasst von: Dr. G. Elke
E. Kuhnt
M. Ragaller
D. Schädler
I. Frerichs
F.M. Brunkhorst
M. Löffler
K. Reinhart
N. Weiler
for the German Competence Network Sepsis (SepNet)
Publikationsdatum: 01.04.2013
Verlag: Springer-Verlag
Erschienen in: Medizinische Klinik - Intensivmedizin und Notfallmedizin / Ausgabe 3/2013
Print ISSN: 2193-6218
Elektronische ISSN: 2193-6226
DOI: https://doi.org/10.1007/s00063-013-0224-4

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Enteral nutrition is associated with improved outcome in patients with severe sepsis

A secondary analysis of the VISEP trial