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Itenov TS, Johansen ME, Bestle M, Thormar K, Hein L, Gyldensted L, Lindhardt A, Christensen H, Estrup S, Pedersen HP, Harmon M, Soni UK, Perez-Protto S, Wesche N, Skram U, Petersen JA, Mohr T, Waldau T, Poulsen LM, Strange D, Juffermans NP, Sessler DI, Tønnesen E, Møller K, Kristensen DK, Cozzi-Lepri A, Lundgren JD, Jensen JU. Induced hypothermia in patients with septic shock and respiratory failure (CASS): a randomised, controlled, open-label trial. THE LANCET. RESPIRATORY MEDICINE 2018; 6:183-192. [PMID: 29325753 PMCID: PMC10928558 DOI: 10.1016/s2213-2600(18)30004-3] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 11/17/2017] [Accepted: 11/17/2017] [Indexed: 12/13/2022]
Abstract
BACKGROUND Animal models of serious infection suggest that 24 h of induced hypothermia improves circulatory and respiratory function and reduces mortality. We tested the hypothesis that a reduction of core temperature to 32-34°C attenuates organ dysfunction and reduces mortality in ventilator-dependent patients with septic shock. METHODS In this randomised, controlled, open-label trial, we recruited patients from ten intensive care units (ICUs) in three countries in Europe and North America. Inclusion criteria for patients with severe sepsis or septic shock were a mean arterial pressure of less than 70 mm Hg, mechanical ventilation in an ICU, age at least 50 years, predicted length of stay in the ICU at least 24 h, and recruitment into the study within 6 h of fulfilling inclusion criteria. Exclusion criteria were uncontrolled bleeding, clinically important bleeding disorder, recent open surgery, pregnancy or breastfeeding, or involuntary psychiatric admission. We randomly allocated patients 1:1 (with variable block sizes ranging from four to eight; stratified by predictors of mortality, age, Acute Physiology and Chronic Health Evaluation II score, and study site) to routine thermal management or 24 h of induced hypothermia (target 32-34°C) followed by 48 h of normothermia (36-38°C). The primary endpoint was 30 day all-cause mortality in the modified intention-to-treat population (all randomly allocated patients except those for whom consent was withdrawn or who were discovered to meet an exclusion criterion after randomisation but before receiving the trial intervention). Patients and health-care professionals giving the intervention were not masked to treatment allocation, but assessors of the primary outcome were. This trial is registered with ClinicalTrials.gov, number NCT01455116. FINDINGS Between Nov 1, 2011, and Nov 4, 2016, we screened 5695 patients. After recruitment of 436 of the planned 560 participants, the trial was terminated for futility (220 [50%] randomly allocated to hypothermia and 216 [50%] to routine thermal management). In the hypothermia group, 96 (44·2%) of 217 died within 30 days versus 77 (35·8%) of 215 in the routine thermal management group (difference 8·4% [95% CI -0·8 to 17·6]; relative risk 1·2 [1·0-1·6]; p=0·07]). INTERPRETATION Among patients with septic shock and ventilator-dependent respiratory failure, induced hypothermia does not reduce mortality. Induced hypothermia should not be used in patients with septic shock. FUNDING Trygfonden, Lundbeckfonden, and the Danish National Research Foundation.
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Affiliation(s)
- Theis Skovsgaard Itenov
- Department of Anesthesia and Intensive Care, Nordsjællands Hospital, Hillerød, Denmark; Centre of Excellence in Immunity and Infection/Centre of Excellence for Personalised Medicine of Infectious Complications in Immune Deficiency, Department of Infectious Diseases, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark
| | - Maria Egede Johansen
- Centre of Excellence in Immunity and Infection/Centre of Excellence for Personalised Medicine of Infectious Complications in Immune Deficiency, Department of Infectious Diseases, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark
| | - Morten Bestle
- Department of Anesthesia and Intensive Care, Nordsjællands Hospital, Hillerød, Denmark
| | - Katrin Thormar
- Department of Anesthesia and Intensive Care, Bispebjerg Hospital, Copenhagen, Denmark
| | - Lars Hein
- Department of Anesthesia and Intensive Care, Nordsjællands Hospital, Hillerød, Denmark
| | - Louise Gyldensted
- Department of Anesthesia and Intensive Care, Herlev and Gentofte Hospital, Hellerup, Denmark
| | - Anne Lindhardt
- Department of Anesthesia and Intensive Care, Bispebjerg Hospital, Copenhagen, Denmark
| | - Henrik Christensen
- Department of Anesthesia and Intensive Care, Herlev and Gentofte Hospital, Herlev, Denmark
| | - Stine Estrup
- Department of Anesthesia and Intensive Care, Zealand University Hospital, Køge, Denmark
| | | | - Matthew Harmon
- Department of Intensive Care, Academic Medical Center, Amsterdam, Netherlands
| | - Uday Kant Soni
- Department of Anesthesia and Intensive Care, Horsens Hospital, Horsens, Denmark
| | - Silvia Perez-Protto
- Center for Critical Care, Anesthesiology Institute, Cleveland Clinic, Cleveland, OH, USA; Department of Outcomes Research, Anesthesiology Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Nicolai Wesche
- Department of Anesthesia and Intensive Care, Nordsjællands Hospital, Hillerød, Denmark
| | - Ulrik Skram
- Department of Anesthesia and Intensive Care, Nordsjællands Hospital, Hillerød, Denmark
| | - John Asger Petersen
- Department of Anesthesia and Intensive Care, Bispebjerg Hospital, Copenhagen, Denmark
| | - Thomas Mohr
- Department of Anesthesia and Intensive Care, Herlev and Gentofte Hospital, Hellerup, Denmark
| | - Tina Waldau
- Department of Anesthesia and Intensive Care, Herlev and Gentofte Hospital, Herlev, Denmark
| | - Lone Musaeus Poulsen
- Department of Anesthesia and Intensive Care, Zealand University Hospital, Køge, Denmark
| | - Ditte Strange
- Department of Anesthesia and Intensive Care, Bispebjerg Hospital, Copenhagen, Denmark
| | - Nicole P Juffermans
- Department of Intensive Care, Academic Medical Center, Amsterdam, Netherlands
| | - Daniel I Sessler
- Department of Outcomes Research, Anesthesiology Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Else Tønnesen
- Department of Anesthesia and Intensive Care, Aarhus University Hospital, Aarhus, Denmark
| | - Kirsten Møller
- Department of Neuroanesthesiology, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark
| | - Dennis Karsten Kristensen
- Centre of Excellence in Immunity and Infection/Centre of Excellence for Personalised Medicine of Infectious Complications in Immune Deficiency, Department of Infectious Diseases, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark
| | - Alessandro Cozzi-Lepri
- Centre for Clinical Research, Epidemiology, Modelling and Evaluation, Institute for Global Health, University College London, London, UK
| | - Jens D Lundgren
- Centre of Excellence in Immunity and Infection/Centre of Excellence for Personalised Medicine of Infectious Complications in Immune Deficiency, Department of Infectious Diseases, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark
| | - Jens-Ulrik Jensen
- Centre of Excellence in Immunity and Infection/Centre of Excellence for Personalised Medicine of Infectious Complications in Immune Deficiency, Department of Infectious Diseases, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark; Respiratory Medicine Division, Department of Internal Medicine, Herlev and Gentofte Hospital, Hellerup, Denmark.
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Johansen ME, Jensen JU, Bestle MH, Ostrowski SR, Thormar K, Christensen H, Pedersen HP, Poulsen L, Mohr T, Kjær J, Cozzi-Lepri A, Møller K, Tønnesen E, Lundgren JD, Johansson PI. Mild induced hypothermia: effects on sepsis-related coagulopathy--results from a randomized controlled trial. Thromb Res 2014; 135:175-82. [PMID: 25466837 DOI: 10.1016/j.thromres.2014.10.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2014] [Revised: 09/27/2014] [Accepted: 10/29/2014] [Indexed: 12/20/2022]
Abstract
INTRODUCTION Coagulopathy associates with poor outcome in sepsis. Mild induced hypothermia has been proposed as treatment in sepsis but it is not known whether this intervention worsens functional coagulopathy. MATERIALS AND METHODS Interim analysis data from an ongoing randomized controlled trial; The Cooling And Surviving Septic shock (CASS) study. Patients suffering severe sepsis/septic shock are allocated to either mild induced hypothermia (cooling to 32-34°C for 24hours) or control (uncontrolled temperature). TRIAL REGISTRATION NCT01455116. Thrombelastography (TEG) is performed three times during the first day after study enrollment in all patients. Reaction time (R), maximum amplitude (MA) and patients' characteristics are here reported. RESULTS One hundred patients (control n=50 and intervention n=50; male n=59; median age 68years) with complete TEG during follow-up were included. At enrollment, 3%, 38%, and 59% had a hypocoagulable, normocoagulable, and hypercoagulable TEG clot strength (MA), respectively. In the hypothermia group, functional coagulopathy improved during the hypothermia phase, measured by R and MA, in patients with hypercoagulation as well as in patients with hypocoagulation (correlation between ΔR and initial R: rho=-0.60, p<0.0001 and correlation between ΔMA and initial MA: rho=-0.50, p=0.0002). Similar results were not observed in the control group neither for R (rho=-0.03, p=0.8247) nor MA (rho=-0.15, p=0.3115). CONCLUSION Mild induced hypothermia did seem to improve functional coagulopathy in septic patients. This improvement of functional coagulopathy parameters during the hypothermia intervention persisted after rewarming. Randomized trials are warranted to determine whether the positive effect on sepsis-related coagulopathy can be transformed to improved survival.
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Affiliation(s)
- Maria E Johansen
- Centre for Health and Infectious Diseases Research (CHIP), Department of Infectious Diseases and Reumathology, Rigshospitalet,University of Copenhagen, Copenhagen, Denmark.
| | - Jens-Ulrik Jensen
- Centre for Health and Infectious Diseases Research (CHIP), Department of Infectious Diseases and Reumathology, Rigshospitalet,University of Copenhagen, Copenhagen, Denmark
| | - Morten H Bestle
- Department of Anesthesia and Intensive Care, Nordsjaellands hospital, Denmark
| | - Sisse R Ostrowski
- Section for Transfusion Medicine, Capital Region Blood Bank, Rigshospitalet, Denmark
| | - Katrin Thormar
- Department of Anesthesia and Intensive Care, Bispebjerg Hospital, Denmark
| | - Henrik Christensen
- Department of Anesthesia and Intensive Care, University Hospital Herlev, Denmark
| | | | - Lone Poulsen
- Department of Anesthesia and Intensive Care, University Hospital Køge, Denmark
| | - Thomas Mohr
- Department of Anesthesia and Intensive Care, University Hospital Gentofte, Denmark
| | - Jesper Kjær
- Centre for Health and Infectious Diseases Research (CHIP), Department of Infectious Diseases and Reumathology, Rigshospitalet,University of Copenhagen, Copenhagen, Denmark
| | - Alessandro Cozzi-Lepri
- Centre for Health and Infectious Diseases Research (CHIP), Department of Infectious Diseases and Reumathology, Rigshospitalet,University of Copenhagen, Copenhagen, Denmark; Department of Virology, Royal Free and University College Medical School London, United Kingdom
| | - Kirsten Møller
- Neurointensive Care Unit 2093, Department of Neuroanaesthesiology, University Hospital Rigshospitalet, Denmark
| | - Else Tønnesen
- Department of Anaesthesia and Intensive Care Medicine, Aarhus University Hospital, Denmark
| | - Jens D Lundgren
- Centre for Health and Infectious Diseases Research (CHIP), Department of Infectious Diseases and Reumathology, Rigshospitalet,University of Copenhagen, Copenhagen, Denmark
| | - Pär I Johansson
- Section for Transfusion Medicine, Capital Region Blood Bank, Rigshospitalet, Denmark; Department of Surgery, University of Texas Medical School at Houston, TX, USA
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