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Controversies in iron management.
Allen R Nissenson1, Chaim Charytan
1Department of Medicine, Division of Nephrology, David Geffen School of Medicine, UCLA, Los Angeles, Calfornia 90095, USA. anissenson@mednet.ucla.edu
Kidney International. Supplement
|October 9, 2003
Summary
Iron therapy is crucial for hemodialysis patients. Newer oral (heme-iron) and parenteral iron (iron sucrose, iron gluconate) options offer improved efficacy and safety over older treatments, though questions remain.
Area of Science:
- Nephrology
- Hematology
- Pharmacology
Background:
- Iron therapy is essential for hemodialysis patients on erythropoietic stimulators to reach hemoglobin targets.
- Oral iron has historically been insufficient, while parenteral iron dextran carries risks of severe side effects.
- Newer heme-iron oral formulations and safer parenteral iron sucrose/gluconate have simplified iron management.
Purpose of the Study:
- To review current literature and clinical experience regarding iron use in hemodialysis patients.
- To address ongoing questions about the efficacy and safety of various iron formulations.
- To guide optimal iron management strategies in this patient population.
Main Methods:
- Comprehensive review of existing scientific literature.
- Integration of authors' clinical expertise and experience.
- Analysis of data pertaining to iron absorption, efficacy, and safety profiles.
Main Results:
- Heme-iron shows greater absorption and tolerance than non-heme iron, potentially reducing parenteral iron and erythropoietin needs.
- Iron sucrose and iron gluconate are safer alternatives to iron dextran, which should be reserved for rare cases.
- Both iron sucrose and gluconate are well-tolerated for repletion and maintenance, even at higher doses (up to 300 mg).
Conclusions:
- Further prospective research is needed to fully elucidate the appropriate use, efficacy, and toxicity of iron therapy in dialysis patients.
- Optimal iron management strategies require ongoing investigation.
- Understanding the nuances of different iron formulations is key for patient care.