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Iron deficiency anemia (IDA) is a common complication of pediatric inflammatory bowel disease (IBD), yet the effectiveness of oral iron supplementation is limited. Intravenous iron sucrose is an effective and safe alternative treatment for IDA in adults with IBD, but its role in the treatment of IDA in pediatric IBD is unclear. The primary aim of this study was to evaluate the use of iron sucrose in pediatric IBD subjects with IDA and determine the clinical response as measured by improvement in hemoglobin concentration. The secondary aim was to describe adverse events associated with iron sucrose use in this cohort.A retrospective chart review was performed of all pediatric patients with IBD receiving iron sucrose infusions for IDA at a single tertiary care center between 2011 and 2015.Seventy-two subjects (53 with Crohn disease, 11 with ulcerative colitis, and 8 with IBD-unclassified) received a total of 273 iron sucrose infusions. Forty-three subjects qualified for the efficacy analysis. There was a significant increase in hemoglobin over the treatment course, with mean (±SD) hemoglobin increasing from 9.6 ± 1.2 g/dL at baseline to 12.1 ± 1.3 g/dL after iron sucrose treatment (P < 0.001). Eighteen adverse events were reported in 13 subjects (18.1% of subjects and 6.6% of infusions). No anaphylaxis reactions occurred and none of the adverse events were, however, life-threatening or required hospitalization.Intravenous iron sucrose is a safe and potentially efficacious treatment choice for IDA in pediatric IBD.