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  • Title: Plasma concentrations of von Willebrand factor and intracellular adhesion molecule-1 for prediction of outcome after successful cardiopulmonary resuscitation.
    Author: Geppert A, Zorn G, Delle-Karth G, Koreny M, Siostrzonek P, Heinz G, Huber K.
    Journal: Crit Care Med; 2003 Mar; 31(3):805-11. PubMed ID: 12626988.
    Abstract:
    OBJECTIVE: Ischemia/reoxygenation following cardiopulmonary resuscitation might cause endothelial injury/activation that could contribute to an adverse outcome after cardiopulmonary resuscitation. We studied plasma concentrations of von Willebrand factor (vWF) antigen and soluble intracellular adhesion molecule (sICAM)-1 as markers of a generalized endothelial injury/activation in relation to outcome after cardiopulmonary resuscitation. DESIGN: Retrospective study on stored plasma samples. SETTING: Intensive care unit at a university hospital. PATIENTS: Thirty-five patients who survived >24 hrs after in- or out-of-hospital cardiopulmonary resuscitation and 15 noncritically ill control patients.I NTERVENTIONS: Blood sampling. MEASUREMENTS AND MAIN RESULTS: Plasma concentrations of vWF antigen and sICAM-1 on day 2 after cardiopulmonary resuscitation were higher in patients than in controls (p < .001 and p = .001, respectively). In-hospital cardiopulmonary resuscitation, cardiopulmonary resuscitation duration > or = 15 mins, severe cardiovascular failure, and renal dysfunction/failure at the time of blood sampling were associated with significant elevations in vWF antigen and sICAM-1 concentrations. Patients with an unfavorable outcome after cardiopulmonary resuscitation (cerebral performance category > or = 3) exhibited higher vWF antigen and sICAM-1 concentrations than patients with good outcome (cerebral performance category 1-2; p < .001 and p = .097, respectively). Renal dysfunction/failure, severe cardiovascular failure, systemic inflammatory response syndrome, and cardiopulmonary resuscitation duration > or = 15 mins were also associated with higher adverse outcome rates. Combination of these four variables into a cardiac arrest risk score (levels 0-4) showed adverse outcome rates of 100, 56, and 0% in patients with arrest scores of 4, 2-3, and 0-1, respectively. A vWF antigen concentration >166% was an independent predictor of outcome after cardiopulmonary resuscitation (p = .002) and was associated with increased adverse outcome rates in patients with cardiac arrest risk scores of 2-3. Furthermore, both vWF antigen concentrations >166% and sICAM-1 concentrations >500 ng/mL had 100% specificity for an adverse outcome in patients after out-of-hospital cardiopulmonary resuscitation but were less predictive in patients after in-hospital cardiopulmonary resuscitation. CONCLUSIONS: vWF antigen and sICAM-1 might be useful adjunctive variables for early determination of outcome in patients after successful out-of-hospital cardiopulmonary resuscitation.
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