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Thalassaemia is an anaemic blood disorder. A person suffering
from this disorder has defective manufacture of hemoglobin and ineffective
manufacture of blood cells in the bone marrow. Thalassaemia is one of the
most common inherited disease.This disorder is geographically common in the people
of Mediterranean, African and Southeast Asian origin. The cause of the disease is
not known other than the fact that it is an inherited disorder.
Thalassaemia can be Beta-Thalassaemia, and Alpha-thalassaemia.
These can be further classified into major and minor thalassaemia.
Thalassaemia Major is the severe type where the patient
has acute anaemia. The patient has frequent leg ulcers, enlarged spleen and jaundice.
Ineffective erythropoiesis i.e. manufacture of red cells causes abnormal skeletal
development. The long bones suffer frequent fractures and growth is stunted. Iron
deposits in the heart muscles can cause complications and heart failure. Iron deposits
in liver lead to dysfunctioning of the liver. The life expectancy of Thalassaemia
patients is greatly reduced
Thalassaemia Minor patients have mild anaemia but lead
normal lives. Such patients at times are not aware of the fact that they are carrying
the disease. It is discovered only after a special blood test. Sometimes a Thalassaemia
Minor patient discovers the disease after his/her child has Thalassaemia Major.
Therefore it is of prime importance to know if you have Thalassaemia Minor when
you want to start a family.
The only treatment for Thalassaemia Major is periodic blood
transfusions every 3 to 4 weeks. Children with periodic blood transfusions lead
quite normal lives upto the age of 20 to 25 years. With each blood transfusion the
red cells in the new blood are broken down over a period of 4-5 months. However
the iron from the red blood cells remains in the body and can damage the liver,
heart and other body organs. If this is not prevented most patients die in their
early twenties. Therefore the blood transfusions have to be supplemented by drug
treatment to remove the extra iron from the body. The treatment is very successful
and most children treated with blood transfusions and drugs lead fairly normal healthy
lives. However the treatment is unpleasant and hampers with an active social life.
A Simple blood test is the most effective test. Unlike many other genetic disorders
, which require complex and often expensive testing, b (Beta)Thalassaemia carriers
are the easiest gene disorder carriers to discover as their red blood will be microcytic
(smaller in size) and hypochromic (paler in colour). The test is called Haemoglobin
Electrophoresis.
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