Thalassemia

Definition

Inherited blood disorder affecting hemoglobin production, resulting in defective or insufficient hemoglobin chains. This causes chronic hemolytic anemia of varying severity depending on the type.

How it works

Thalassemia is an inherited condition where the body cannot produce normal amounts of hemoglobin due to mutations affecting globin chain synthesis. There are different types—thalassemia major, intermediate, and minor—depending on how many defective genes are inherited. Patients with thalassemia major require regular blood transfusions to survive. The condition leads to hemolysis, iron overload from transfusions, and complications affecting the heart, liver, and endocrine system. Proper iron chelation therapy and nutritional management are essential to prevent organ damage.

Role

Thalassemia affects hemoglobin synthesis genetically, requiring lifelong management to prevent complications from anemia and iron accumulation.

Examples

• Beta-thalassemia major
• Alpha-thalassemia
• Thalassemia intermedia
• Thalassemia trait (minor)
• HbH disease

Recommendations

Patients should receive regular blood transfusions as prescribed, take iron chelation therapy to prevent iron overload, and maintain adequate folate and iron supplementation as directed by their hematologist. Regular monitoring of organ function and nutrition status is critical. Bone marrow transplantation may be considered for eligible patients.

Key takeaway

Thalassemia requires comprehensive management including transfusions, iron chelation, and nutritional support to prevent organ damage.

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