E-ISSN 2148-5607
Diagnosis and treatment of iron deficiency anemia in patients with inflammatory bowel disease and gastrointestinal bleeding: iron deficiency anemia working group consensus report
1 Department of Gastroenterology, Dokuz Eylül University School of Medicine, İzmir, Turkey  
2 Department of Hematology, Koç University School of Medicine American Hospital, İstanbul, Turkey  
3 Department of Gastroenterology, Oxford University Faculty of Medicine John Radcliffe Hospital, Oxford, England  
4 Department of Gastroenterology, Ankara University School of Medicine, Ankara, Turkey  
Turk J Gastroenterol 2017; 28: 81-87
DOI: 10.5152/tjg.2017.17593
Key Words: Inflammatory bowel disease, gastrointestinal hemorrhage, iron deficiency anemia, oral administration, intravenous administration

Iron deficiency (ID) and iron deficiency anemia (IDA) are important signs of gastrointestinal (GI) hemorrhage. Therefore, the evaluation of the GI tract should be a part of the diagnostic protocol in patients with IDA. GI hemorrhage is not a disease but a symptom, which might have different underlying causes. ID and IDA have significant negative impacts on the life quality and work ability, and they may lead to frequent hospitalization, delay of discharge, and increased healthcare costs. Therefore, an optimal management of the disease causing GI hemorrhage should include iron replacement therapy, along with the treatment of the underlying condition. IDA in inflammatory bowel disease (IBD) has received particular attention owing to its high prevalence, probably due to a number of other factors such as chronic hemorrhage, reduced dietary iron intake, and impaired absorption of iron. Historically, in IBD and in patients with GI hemorrhage, the diagnosis and management of IDA have been suboptimal. Options for iron replacement include oral and intravenous (IV) iron supplementation. Oral iron supplementation frequently results in GI side effects, and theoretically, it may exacerbate IBD activity; therefore, IV iron supplementation is usually considered in patients not responding to or not complying with oral iron supplementation or patients having low hemoglobin concentration and requiring prompt iron repletion. The aim of this report was to review the diagnostic and therapeutic considerations of IDA in IBD and GI hemorrhage with a multidisciplinary group of experts and to formulate necessary practical recommendations.

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