OBJECTIVE: A minority of patients develop severe systemic inflammatory response syndrome (SIRS) with high mortality following cardiopulmonary bypass-assisted cardiac surgery. We assessed whether intravenous immunoglobulin G (ivIgG) improves postoperative short-term (5-day) morbidity and reduces 28-day mortality in these patients. DESIGN: Randomized, double-blind, placebo-controlled, multicenter trial. SETTING:Intensive care units of 11 cardiothoracic centers. PATIENTS AND INTERVENTIONS: Of 6,984 patients screened, we identified 244 with severe SIRS (Acute Physiology and Chronic Health Evaluation II score > or = 28 on the first postoperative day). INTERVENTIONS: The 244 patients with severe SIRS were randomly assigned to receive an intravenous infusion of either albumin 0.1% (placebo group, 6 mL [6 mg]/kg of body weight on day 1 and 3 mL [3 mg]/kg of body weight on day 2) or immunoglobulin G 10% (ivIgG group, 6 mL [600 mg]/kg of body weight on day 1 and 3 mL [300 mg]/kg of body weight on day 2). MEASUREMENTS AND MAIN RESULTS: The prospectively defined primary end points were improvement in morbidity on day 5 and death from any cause assessed on day 28. A total of 218 patients received both doses of the study drug (placebo n = 108, ivIgG n = 110). Acute Physiology and Chronic Health Evaluation II scores in the placebo group decreased from 31.8 +/- 4.0 (day 1) to 25.8 +/- 9.3 (day 5) and in the ivIgG group from 31.8 +/- 3.4 (day 1) to 25.9 +/- 10.3 (day 5), with no significant difference between the groups (p = .56). The 28-day mortality rate was not significantly different between the groups (per protocol population, placebo group 31.5%, ivIgG group 39.1%; intent-to-treat population, placebo group 37.2%, ivIgG group: 44.7%). No effect of ivIgG on plasma levels of interleukin-6, tumor necrosis factor, and tumor necrosis factor receptor I/II was observed. Drug-related adverse events were rare in both groups. CONCLUSIONS:Patients undergoing cardiac surgery (involving cardiopulmonary bypass) who develop severe SIRS derive no improvement in short-term morbidity or 28-day mortality from ivIgG.
RCT Entities:
OBJECTIVE: A minority of patients develop severe systemic inflammatory response syndrome (SIRS) with high mortality following cardiopulmonary bypass-assisted cardiac surgery. We assessed whether intravenous immunoglobulin G (ivIgG) improves postoperative short-term (5-day) morbidity and reduces 28-day mortality in these patients. DESIGN: Randomized, double-blind, placebo-controlled, multicenter trial. SETTING: Intensive care units of 11 cardiothoracic centers. PATIENTS AND INTERVENTIONS: Of 6,984 patients screened, we identified 244 with severe SIRS (Acute Physiology and Chronic Health Evaluation II score > or = 28 on the first postoperative day). INTERVENTIONS: The 244 patients with severe SIRS were randomly assigned to receive an intravenous infusion of either albumin 0.1% (placebo group, 6 mL [6 mg]/kg of body weight on day 1 and 3 mL [3 mg]/kg of body weight on day 2) or immunoglobulin G 10% (ivIgG group, 6 mL [600 mg]/kg of body weight on day 1 and 3 mL [300 mg]/kg of body weight on day 2). MEASUREMENTS AND MAIN RESULTS: The prospectively defined primary end points were improvement in morbidity on day 5 and death from any cause assessed on day 28. A total of 218 patients received both doses of the study drug (placebo n = 108, ivIgG n = 110). Acute Physiology and Chronic Health Evaluation II scores in the placebo group decreased from 31.8 +/- 4.0 (day 1) to 25.8 +/- 9.3 (day 5) and in the ivIgG group from 31.8 +/- 3.4 (day 1) to 25.9 +/- 10.3 (day 5), with no significant difference between the groups (p = .56). The 28-day mortality rate was not significantly different between the groups (per protocol population, placebo group 31.5%, ivIgG group 39.1%; intent-to-treat population, placebo group 37.2%, ivIgG group: 44.7%). No effect of ivIgG on plasma levels of interleukin-6, tumor necrosis factor, and tumor necrosis factor receptor I/II was observed. Drug-related adverse events were rare in both groups. CONCLUSIONS:Patients undergoing cardiac surgery (involving cardiopulmonary bypass) who develop severe SIRS derive no improvement in short-term morbidity or 28-day mortality from ivIgG.
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