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Continuous Manual Exchange Transfusion for Patients with Sickle Cell Disease: An Efficient Method to Avoid Iron Overload
05:23

Continuous Manual Exchange Transfusion for Patients with Sickle Cell Disease: An Efficient Method to Avoid Iron Overload

Published on: March 14, 2017

Transfusional iron overload in children with sickle cell anemia on chronic transfusion therapy for secondary stroke

Janet L Kwiatkowski1, Alan R Cohen, Julian Garro

  • 1Children's Hospital of Philadelphia and University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA. kwiatkowski@email.chop.edu

American Journal of Hematology
|November 29, 2011
PubMed

Insights

Chronic transfusions for sickle cell anemia (SCA) in children can cause iron overload. This study highlights the need for improved monitoring and timely treatment adjustments to manage iron burden effectively.

Area of Science:

  • Hematology
  • Pediatric Medicine
  • Pharmacology

Background:

  • Chronic transfusions are vital for preventing stroke in children with sickle cell anemia (SCA).
  • Transfusional iron overload is a significant complication of chronic transfusion therapy in SCA.
  • Current practices for managing iron overload in pediatric SCA patients, especially with new chelator options, require updated characterization.

Purpose of the Study:

  • To investigate the extent of iron loading in children with SCA receiving chronic transfusions.
  • To evaluate current iron overload monitoring and treatment strategies in this population.
  • To assess iron burden and chelation practices within the context of the SWiTCH trial.

Main Methods:

  • Analysis of screening data from 161 children with SCA from the SWiTCH trial.
  • Inclusion of liver iron concentration (LIC) and serum ferritin measurements.
  • Review of chelation therapy initiation and current treatments.

Main Results:

  • Elevated baseline liver iron concentration (median 12.94 mg/g dw) and serum ferritin (median 3,164 ng/mL) were observed.
  • Chelation therapy was initiated after a mean of 2.6 years of transfusions.
  • At study entry, 90% of children on chelation were receiving deferasirox.

Conclusions:

  • Significant iron loading is present in chronically transfused children with SCA.
  • There is a need for enhanced monitoring of iron burden in pediatric SCA patients.
  • Timely adjustments to chelation therapy are crucial for managing iron overload effectively.

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