Jukka Vaahersalo1, Markus B Skrifvars2, Kari Pulkki3, Mats Stridsberg4, Helge Røsjø5, Seppo Hovilehto6, Marjaana Tiainen7, Tero Varpula2, Ville Pettilä2, Esko Ruokonen8. 1. Intensive Care Units, Department of Anaesthesiology, Intensive Care and Pain Medicine, Helsinki University Hospital, Helsinki, Finland. Electronic address: jukka.vaahersalo@hus.fi. 2. Intensive Care Units, Department of Anaesthesiology, Intensive Care and Pain Medicine, Helsinki University Hospital, Helsinki, Finland. 3. Department of Clinical Chemistry, School Of Medicine, University of Eastern Finland and Eastern Finland Laboratory Centre, Kuopio, Finland. 4. Department of Medical Sciences, Uppsala University, Uppsala, Sweden. 5. Division of Medicine, Akershus University Hospital, Lørenskog, Norway and Institute for Clinical Medicine, University of Oslo, Oslo, Norway. 6. Department of Anaesthesiology, South-Carelia Hospital, Lappeenranta, Finland. 7. Department of Neurology, Helsinki University Hospital, Helsinki, Finland. 8. Division of Intensive Care Medicine, Kuopio University Hospital, Kuopio, Finland.
Abstract
AIM OF THE STUDY: To study plasma concentrations of interleukin-6 (IL-6), high-sensitivity C-reactive protein (hs-CRP) and S-100B during intensive care after out-of-hospital cardiac arrest from ventricular fibrillation (OHCA-VF), and their associations with the duration of ischemia, organ dysfunction and long-term neurological outcome. MATERIALS AND METHODS: A 12-month prospective observational multicentre study was conducted in 21 Finnish intensive care units in 2011. IL-6, hs-CRP and S-100B were measured at 0-6 h, 24 h, 48 h and 96 h after ICU admission. Associations with the time to return of spontaneous circulation (ROSC), sequential organ failure assessment (SOFA) scores divided into tertiles and 12-month cerebral performance category (CPC) were tested. RESULTS: Of 186 OHCA-VF patients included in the study, 110 (59.1%) patients survived with good neurological outcome (CPC 1-2) 12 months after cardiac arrest. Admission plasma concentrations of IL-6 but not hs-CRP were higher with prolonged time to ROSC (p<0.001, 0.203, respectively), in patients with subsequent higher SOFA scores (p<0.001, 0.069) and poor long-term neurological outcome (CPC 3-5) (p<0.001, 0.315). S-100B concentrations over time were higher in patients with CPC of 3-5 (p<0.001). The area under the curve for prediction of poor 12-month outcome for admission levels was 0.711 IL-6, 0.663 for S-100B and 0.534 for hs-CRP. With multivariate logistic regression analysis only admission IL-6 (p=0.046, OR 1.006, 95% CI 1.000-1.011/ng/L) was an independent predictor of poor neurological outcome. CONCLUSION: Admission high IL-6, but not hs-CRP or S-100B, is associated with extra-cerebral organ dysfunction and along with age and time to ROSC are independent predictors for 12-month poor neurologic outcome (CPC 3-5).
AIM OF THE STUDY: To study plasma concentrations of interleukin-6 (IL-6), high-sensitivity C-reactive protein (hs-CRP) and S-100B during intensive care after out-of-hospital cardiac arrest from ventricular fibrillation (OHCA-VF), and their associations with the duration of ischemia, organ dysfunction and long-term neurological outcome. MATERIALS AND METHODS: A 12-month prospective observational multicentre study was conducted in 21 Finnish intensive care units in 2011. IL-6, hs-CRP and S-100B were measured at 0-6 h, 24 h, 48 h and 96 h after ICU admission. Associations with the time to return of spontaneous circulation (ROSC), sequential organ failure assessment (SOFA) scores divided into tertiles and 12-month cerebral performance category (CPC) were tested. RESULTS: Of 186 OHCA-VFpatients included in the study, 110 (59.1%) patients survived with good neurological outcome (CPC 1-2) 12 months after cardiac arrest. Admission plasma concentrations of IL-6 but not hs-CRP were higher with prolonged time to ROSC (p<0.001, 0.203, respectively), in patients with subsequent higher SOFA scores (p<0.001, 0.069) and poor long-term neurological outcome (CPC 3-5) (p<0.001, 0.315). S-100B concentrations over time were higher in patients with CPC of 3-5 (p<0.001). The area under the curve for prediction of poor 12-month outcome for admission levels was 0.711 IL-6, 0.663 for S-100B and 0.534 for hs-CRP. With multivariate logistic regression analysis only admission IL-6 (p=0.046, OR 1.006, 95% CI 1.000-1.011/ng/L) was an independent predictor of poor neurological outcome. CONCLUSION: Admission high IL-6, but not hs-CRP or S-100B, is associated with extra-cerebral organ dysfunction and along with age and time to ROSC are independent predictors for 12-month poor neurologic outcome (CPC 3-5).
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