Management of Thalassemia Major

Introduction to Thalassemia Major

Patients with beta-thalassemia major require lifelong regular blood transfusions every 3-4 weeks combined with daily iron chelation therapy to prevent life-threatening complications from iron overload, and they should understand that with optimal adherence to this treatment regimen, survival into the fourth or fifth decade is now achievable 1, 2, 3

Regular transfusions suppress ineffective erythropoiesis and prevent skeletal deformities, growth retardation, and other complications 1, 2

Iron chelation must begin as soon as regular transfusions are established to prevent iron accumulation in the heart, liver, and endocrine organs 3
Deferiprone may be used but carries risk of neutropenia requiring blood count monitoring 3, 4
Deferoxamine requires subcutaneous infusion 5-7 nights per week, which is burdensome but highly effective 3

All patients should receive hepatitis B vaccination before starting transfusions if they live in countries without universal infant immunization programs 5
Sexual partners of HBV-positive patients should be vaccinated 5
HCV transmission risk in monogamous relationships is very low (0-0.6% per year) and does not require changes in sexual practices 5

Meat, especially red meat, should be limited to reduce heme iron intake which is well absorbed 6
Do not take vitamin C supplements exceeding 500 mg daily, as vitamin C can mobilize iron from stores and worsen cardiac iron deposition 6
Fruit juices and citrus fruits should be consumed alone, not with meals, to minimize enhancement of iron absorption 6
Alcohol should be avoided or consumed minimally, as it accelerates liver damage in the setting of iron overload 6
Never take iron supplements or multivitamins containing iron 6

Annual echocardiography and cardiac MRI T2* are essential to detect early iron-related heart damage before symptoms develop 3
Liver function tests every 3 months and periodic MRI to measure liver iron concentration guide chelation intensity 3, 7
Annual screening for diabetes, thyroid dysfunction, and hypogonadism is necessary as these are common complications 3

Partners should be tested for thalassemia carrier status, as two carriers have a 25% chance of having a child with thalassemia major 5
Fertility issues may affect fertility, but pregnancy is possible with proper management 3

Hematopoietic stem cell transplantation (HSCT) is the only currently available cure for thalassemia major 1, 2
HSCT should be performed as early as possible, ideally before age 14 years and before iron-related organ damage develops, when disease-free survival exceeds 90% with matched sibling donors 1, 2
Age and organ dysfunction from iron overload are the main predictors of transplant complications 1, 2

With optimal adherence, patients can expect survival into their 40s-50s and maintain reasonable quality of life 1, 2