Management of Anemia in Chronic Disease

Diagnosis and Evaluation

• The European Crohn’s and Colitis Organisation recommends that the diagnosis of anemia in chronic disease should exclude other causes of anemia, particularly iron deficiency 2
• The evaluation of anemia in chronic disease should always consider possible concomitant diseases such as infections, neoplasias, or side effects of medications, as suggested by the Journal of Crohn's and Colitis 1

Treatment Strategies

1. Treatment of the Underlying Disease

• The American Gastroenterological Association suggests that optimizing the treatment of the underlying chronic disease is the first and most important intervention for correcting anemia 1, 2
• In patients with inflammatory bowel disease, inducing complete remission is fundamental for correcting anemia, as recommended by the European Crohn’s and Colitis Organisation 1
• The National Kidney Foundation recommends that in patients with chronic kidney disease, optimal management of renal function is essential 3, 4

2. Iron Therapy

• The European Crohn’s and Colitis Organisation suggests that intravenous iron is preferable to oral iron in patients with chronic disease due to its higher efficacy in the presence of inflammation 2

3. Erythropoiesis-Stimulating Agents (ESA)

• The National Kidney Foundation recommends that ESA are indicated in patients with chronic kidney disease to reduce the need for transfusions, with a target hemoglobin level generally between 10-12 g/dL 4
• The Kidney Disease: Improving Global Outcomes (KDIGO) guidelines suggest that caution is needed when using ESA, as complete correction of anemia may be associated with adverse outcomes 4

Considerations for Transfusion and Monitoring

• The American College of Physicians recommends that blood transfusions should be reserved for severe cases or when rapid correction of anemia is needed, but are not appropriate as long-term treatment 5
• In patients with cardiac disease and anemia, a restrictive transfusion strategy (hemoglobin threshold of 7-8 g/dL) is recommended, as suggested by the American Heart Association 5
• The National Kidney Foundation suggests that periodic evaluation of hematological parameters and iron metabolism is necessary, with adjustments to treatment as needed 3, 4