How we manage iron overload in sickle cell patients

Br J Haematol. 2017 Jun;177(5):703-716. doi: 10.1111/bjh.14575. Epub 2017 Mar 14.

Abstract

Blood transfusion plays a prominent role in the management of patients with sickle cell disease (SCD), but causes significant iron overload. As transfusions are used to treat the severe complications of SCD, it remains difficult to distinguish whether organ damage is a consequence of iron overload or is due to the complications treated by transfusion. Better management has resulted in increased survival, but prolonged exposure to iron puts SCD patients at greater risk for iron-related complications that should be treated. The success of chelation therapy is dominated by patient adherence to prescribed treatment; thus, adjustment of drug regimens to increase adherence to treatment is critical. This review will discuss the current biology of iron homeostasis in patients with SCD and how this informs our clinical approach to treatment. We will present the clinical approach to treatment of iron overload at our centre using serial assessment of organ iron by magnetic resonance imaging.

Keywords: anaemia; chelator; iron overload; management; sickle cell disease.

Publication types

  • Review
  • Research Support, N.I.H., Extramural

MeSH terms

  • Anemia, Sickle Cell / complications*
  • Anemia, Sickle Cell / therapy
  • Chelation Therapy / methods
  • Homeostasis / physiology
  • Humans
  • Iron / adverse effects
  • Iron / metabolism
  • Iron Chelating Agents / therapeutic use
  • Iron Overload / diagnosis
  • Iron Overload / etiology
  • Iron Overload / therapy*
  • Magnetic Resonance Imaging
  • Medication Adherence
  • Transfusion Reaction

Substances

  • Iron Chelating Agents
  • Iron