Sign in Subscribe
Cytology

Blood Transfusions for Sickle Cell Patients Come with Harsh Trade-Offs

Strategic Insights

— 1 min read

Doctors continue to use blood transfusions to prevent strokes in young sickle cell patients, despite the treatment's risks, after a clinical study was halted due to severe complications. The STOP II study, initiated in 2000 and funded by the National Heart, Lung and Blood Institute, aimed to determine if some children with sickle cell anemia could be weaned off blood transfusion therapy. The study involved 79 children, age 2 to 18, who had a high risk of stroke but had diminished risk after years of blood transfusion therapy.

Key Takeaways:

  • The STOP II study was halted prematurely due to complications in 16 children who stopped receiving blood transfusions, including two stroke patients.
  • Blood transfusions are effective in reducing the risk of stroke in young sickle cell patients, but long-term use can cause iron accumulation, heart problems, and liver damage.
  • The study showed that when transfusions were discontinued after a minimum of 30 months, a significant number of children reverted to high risk of stroke.
  • Eight children were identified as being able to safely discontinue blood transfusions, while others faced a high risk of strokes.
  • The original STOP study had already identified a 90% reduction in the risk of a first stroke in patients receiving blood transfusions.
  • Blood transfusions can take 4 to 5 hours, expose patients to blood-borne infections, and require repeated administration.

Statistics:

  • 79 children, age 2 to 18, participated in the STOP II study, with 37 continuing to receive blood transfusions as a control group and 42 discontinuing transfusions.
  • 16 children stopped receiving blood transfusions and developed narrowed arteries and other risk factors for strokes.
  • 8 children were identified as safely able to discontinue blood transfusions without an increased stroke risk despite stopping treatment for 2 years during the study.

Sources:

  • NewsRx.com & NewsRx.net
  • U.S. National Institutes of Health (NIH)
  • National Heart, Lung and Blood Institute
  • Medical College of Georgia
  • Health & Medicine Week editors via NewsRx.com & NewsRx.net

Read more