• Murdoch Leeies, Hayley B Gershengorn, Emmanuel Charbonney, Anand Kumar, Dean A Fergusson, Alexis F Turgeon, Allan Garland, Donald S Houston, Brett Houston, Emily Rimmer, Eric Jacobsohn, Srinivas Murthy, Rob Fowler, Robert Balshaw, and Ryan Zarychanski.
• Department of Emergency Medicine, Section of Critical Care Medicine, University of Manitoba, Winnipeg, MB, Canada. mleeies@hsc.mb.ca.
• Can J Anaesth. 2021 Nov 1; 68 (11): 164116501641-1650.

PurposeIntravenous immune globulin (IVIG) may improve survival in people with septic shock. Current utilization patterns of IVIG are unknown. We sought to characterize adult patients with septic shock requiring vasopressors who received IVIG, describes IVIG regimens, and evaluate determinants of IVIG use in patients with septic shock.MethodsWe conducted a retrospective database study of adult patients with septic shock admitted to US hospitals in the Premier Healthcare Database (from July 2010 to June 2013). We described the proportion of patients with septic shock receiving IVIG, examined IVIG regimens across sites and employed random-effects multivariable regression techniques to identify predictors of IVIG use.ResultsIntravenous immune globulin was administered to 0.3% (n = 685) of patients with septic shock; with a median [interquartile range (IQR)] dose of 1 [0.5-1.8] g·kg-1 for a median [IQR] of 1 [1-2] day. Receipt of IVIG was less likely for Black patients (odds ratio [OR], 0.54; 95% confidence interval [CI] 0.41 to 0.72) and patients without private insurance (Medicare OR, 0.73; 95% CI 0.59 to 0.90; Medicaid OR, 0.41; 95% CI 0.30 to 0.57) and more likely for patients with immunocompromise (OR, 6.83; 95% CI 5.47 to 8.53), necrotizing fasciitis (OR, 9.78; 95% CI 6.97 to 13.72), and toxic shock (OR, 56.9; 95% CI 38.7 to 83.7).ConclusionsIntravenous immune globulin is used infrequently across the US in patients with septic shock. Regimens of IVIG in septic shock may be less intensive than those associated with a survival benefit in meta-analyses. Observed infrequent use supports apparent clinical equipoise, perhaps secondary to limitations of the primary literature. A clinical trial evaluating the role of IVIG in septic shock is needed.© 2021. Canadian Anesthesiologists' Society.

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