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Updated: Feb 6, 2026

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Iron overload in sickle cell disease.

Radha Raghupathy1, Deepa Manwani, Jane A Little

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Summary
This summary is machine-generated.

Red blood cell transfusions help sickle cell disease patients by improving blood flow and oxygen capacity. However, a major complication is iron overload, requiring careful management.

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Area of Science:

  • Hematology
  • Internal Medicine
  • Transfusion Medicine

Background:

  • Sickle cell disease (SCD) management often involves red blood cell transfusions to improve blood flow and oxygen-carrying capacity.
  • Transfusions mitigate hemolysis and endothelial damage by reducing sickle hemoglobin polymer formation.
  • Transfusions are indicated for stroke prophylaxis, acute chest syndrome, and other SCD complications, though evidence varies.

Purpose of the Study:

  • To provide a comprehensive overview of iron metabolism in the context of sickle cell disease.
  • To detail the diagnosis, treatment, and prevention strategies for iron overload in transfused SCD patients.
  • To discuss the patterns of end-organ damage resulting from iron overload in SCD.

Main Methods:

  • Literature review on normal iron metabolism.
  • Analysis of iron overload complications in sickle cell disease patients receiving transfusions.
  • Synthesis of current diagnostic and therapeutic approaches for iron overload.

Main Results:

  • Transfusions are crucial for managing SCD complications but invariably lead to iron overload.
  • Iron overload can cause significant end-organ damage if not properly managed.
  • Effective strategies for diagnosis, treatment, and prevention of iron overload are essential.

Conclusions:

  • Iron overload is a critical, unavoidable complication of chronic transfusions in sickle cell disease.
  • Multidisciplinary management is required to address iron overload and its sequelae.
  • Ongoing research and clinical practice should focus on optimizing iron chelation therapy and monitoring for end-organ damage.