Infectious complications after out-of-hospital cardiac arrest—A comparison between two target temperatures

Josef Dankiewicz*, Niklas Nielsen, Adam Linder, Michael Kuiper, Matthew P. Wise, Tobias Cronberg, David Erlinge, Yvan Gasche, Matthew B. Harmon, Christian Hassager, Janneke Horn, Jesper Kjaergaard, Tommaso Pellis, Pascal Stammet, Johan Undén, Michael Wanscher, Jørn Wetterslev, Anders Åneman, Susann Ullén, Nicole P. JuffermansHans Friberg

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

Background: It has been suggested that target temperature management (TTM) increases the probability of infectious complications after cardiac arrest. We aimed to compare the incidence of pneumonia, severe sepsis and septic shock after out-of-hospital cardiac arrest (OHCA) in patients with two target temperatures and to describe changes in biomarkers and possible mortality associated with these infectious complications.

Methods: Post-hoc analysis of the TTM-trial which randomized patients resuscitated from OHCA to a target temperature of 33 °C or 36 °C. Prospective data on infectious complications were recorded daily during the ICU-stay. Pneumonia, severe sepsis and septic shock were considered infectious complications. Procalcitonin (PCT) and C-reactive-protein (CRP) levels were measured at 24 h, 48 h and 72 h after cardiac arrest.

Results: There were 939 patients in the modified intention-to-treat population. Five-hundred patients (53%) developed pneumonia, severe sepsis or septic shock which was associated with mortality in multivariate analysis (Hazard ratio [HR] 1.39; 95%CI 1.13–1.70; p = 0.001). There was no statistically significant difference in the incidence of infectious complications between temperature groups (sub-distribution hazard ratio [SHR] 0.88; 95%CI 0.75–1.03; p = 0.12). PCT and CRP were significantly higher for patients with infections at all times (p < 0.001), but there was considerable overlap.

Conclusions: Patients who develop pneumonia, severe sepsis or septic shock after OHCA might have an increased mortality. A target temperature of 33 °C after OHCA was not associated with an increased risk of infectious complications compared to a target temperature of 36 °C. PCT and CRP are of limited value for diagnosing infectious complications after cardiac arrest.

Original languageEnglish
Pages (from-to)70-76
Number of pages7
JournalResuscitation
Volume113
DOIs
Publication statusPublished - 1 Apr 2017
Externally publishedYes

Keywords

  • c-Reactive protein
  • Hypothermia
  • Infection
  • Out-of-hospital cardiac arrest
  • Procalcitonin

Fingerprint

Dive into the research topics of 'Infectious complications after out-of-hospital cardiac arrest—A comparison between two target temperatures'. Together they form a unique fingerprint.

Cite this