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Thalassemia is often accompanied by the destruction of a large number of red blood cells and the task of removing these cells causes the spleen to enlarge. Splenomegaly can make anemia worse, and it can reduce the life of transfused red blood cells. Severe enlargement of the spleen may necessitate its removal. [19]
Alpha-thalassemia (α-thalassemia, α-thalassaemia) is a form of thalassemia involving the genes HBA1 [5] and HBA2. [6] Thalassemias are a group of inherited blood conditions which result in the impaired production of hemoglobin , the molecule that carries oxygen in the blood. [ 7 ]
Mild thalassemia : patients with thalassemia traits do not require medical or follow-up care after the initial diagnosis is made. [2] Patients with β-thalassemia trait should be warned that their condition can be misdiagnosed for the common Iron deficiency anemia.
Beta-thalassemia; Other names: Microcytemia, beta type [1] Beta thalassemia genetics, the picture shows one example of how beta thalassemia is inherited. The beta globin gene is located on chromosome 11. A child inherits two beta globin genes (one from each parent). Specialty: Hematology: Types: Thalassemia minor, intermediate and major [2] Causes
Various diseases can lead to transfusion-dependent anemia, most notably myelodysplastic syndromes (MDS) and thalassemia. [4] [5] Due to the number of diseases that can cause transfusion-dependent anemia, diagnosing it is more complicated. Transfusion dependence occurs when an average of more than 2 units of blood transfused every 28 days is ...
Thalassemia [3] (β-thalassemia Minor (i.e. Trait) & Major, and α-thalassemia, only when 3 gene loci defective: (--/-α)) Severe megaloblastic anemia; Hemolytic anemia; Sickle-cell anemia; Pyrimidine 5' nucleotidase deficiency [4] Alcoholism [5] Myelodysplastic syndromes; Sideroblastic anemia [6] Congenital dyserythropoietic anemia [7] Primary ...
Anemia of chronic disease, hereditary spherocytosis, acute blood loss, aplastic anemia (anemia resulting from an inability of the bone marrow to produce red blood cells), and certain hereditary hemoglobinopathies (including some cases of thalassemia minor) may all present with a normal RDW. [4]
In α-thalassemia, which is relatively frequent in Africa and several other countries, production of the α-chain of hemoglobin is impaired, and there is relative over-production of the β-chain. Individuals homozygous for β-thalassemia have severe anemia and are unlikely to survive and reproduce, so selection against the gene is strong.
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