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Iron Overload

Let's talk about iron overload

Learn about the relationship between blood transfusions and iron levels in your body.

Blood transfusions may increase the iron levels throughout your blood and organs and lead to iron overload. It is important to manage the iron levels throughout your body to avoid life-threatening complications.¹ Your doctor may perform blood tests or magnetic resonance imaging (MRI) to understand whether iron is building up in your organs. Your doctor may then change your transfusion treatment or prescribe chelation (pronounced key-lay-shun) therapy, which is explained below.

When you receive a simple transfusion, healthy donor cells are added to your existing iron-containing red blood cells, which can increase iron levels. During automated and manual exchange therapy, some of your iron-containing cells are removed, so even though you receive healthy donor cells, your iron levels may stay approximately the same.¹˒²˒³˒⁴

Chelation therapy

This therapy is performed with an intravenous (IV) line or oral medication when your iron levels are too high. The drug binds to the iron and other metals in your blood and is removed through your urine.

Will I need chelation therapy?
It is hard to predict whether you will require iron chelation therapy. However, some studies show iron overload is more frequent for patients receiving simple transfusions compared with automated or manual exchanges.¹˒²˒³˒⁴

Ask your doctor for more information.

Side effects of automated red blood cell exchange (RBCX) may include: 
Anxiety, headache, light-headedness, digital and/or facial paresthesia (tingling sensation in the arms, hands, feet, legs, or face), fever, chills, hematoma, hyperventilation, nausea and vomiting, syncope (fainting), urticaria (hives), hypotension, allergic reactions, infection, hemolysis, thrombosis in patient and device, hypocalcemia, hypokalemia, thrombocytopenia, hypoalbuminemia, anemia, coagulopathy, fatigue, hypomagnesemia, hypogammaglobulinemia, adverse tissue reaction, device failure/disposable set failure, air embolism, blood loss/anemia, electrical shock, fluid imbalance, and inadequate separation of blood components.⁵ 
 
Contraindications 
Automated RBCX may not be an option for all patients with sickle cell disease. Talk to your physician about your transfusion options. Contraindications for the use of apheresis systems are limited to those associated with the infusion of solutions and replacement fluids as required by the apheresis procedure and those associated with all types of automated apheresis systems. 
 
Reactions to blood products transfused during procedures can include: 
Hemolytic transfusion reaction, immune-mediated platelet destruction, fever, allergic reactions, anaphylaxis, transfusion-related acute lung injury (TRALI), alloimmunization, posttransfusion purpura (PTP), transfusion-associated graft-versus-host disease (TA-GVHD), circulatory overload, hypothermia, metabolic complications, and transmission of infectious diseases and bacteria.⁶˒⁷ 

Restricted to prescription use only. 
Operators must be familiar with the system’s operating instructions.
Procedures must be performed by qualified medical personnel.

Disclaimers and notes

  1. Adams DM, Schultz WH, Ware RE, Kinney TR. Erythrocytapheresis can reduce iron overload and prevent the need for chelation therapy in chronically transfused pediatric patients. J Pediatr Hematol Oncol. 1996;18(1):46-50.
  2. Danielson CF. The role of red blood cell exchange transfusion in the treatment and prevention of complications of sickle cell disease. Ther Apher. 2002;6(1):24-31.
  3. National Institute for Health and Care Excellence (NICE). Spectra Optia for automatic red blood cell exchange in patients with sickle cell disease. https://www.nice.org.uk/guidance/mtg28/chapter/5-Cost-considerations. Accessed November 2020.
  4. Fasano RM, Leong T, Kaushal M, Sagiv E, Luban NL, Meier ER. Effectiveness of red blood cell exchange, partial manual exchange, and simple transfusion concurrently with iron chelation therapy in reducing iron overload in chronically transfused sickle cell anemia patients. Transfusion. 2016;56(7):1707-1715.
  5. Crookston KP. Therapeutic Apheresis: a Physician’s Handbook. 5th ed. Bethesda, MD: AABB/ASFA; 2017.
  6. AABB. Circular of Information for the Use of Human Blood and Blood Components. Bethesda, MD: AABB; 2017.
  7. European Directorate for the Quality of Medicines & HealthCare (EDQM). Guide to the Preparation, Use and Quality Assurance of Blood Components. 20th ed. Strasbourg, France: EDQM Council of Europe; 2020.
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