Spleen size changes in children with homozygous beta-thalassaemia in relation to blood transfusion

Area of Science:

• Pediatric Hematology
• Nuclear Medicine
• Clinical Research

Background:

• Thalassaemia is a genetic blood disorder requiring regular blood transfusions.
• Enlarged spleen (splenomegaly) is a common complication in thalassaemia patients.
• The relationship between blood transfusions, spleen size, and splenic function in thalassaemia is not fully understood.

Purpose of the Study:

• To investigate the dynamic changes in spleen size and function following blood transfusions in children with thalassaemia.
• To correlate changes in spleen size with hematological parameters and splenic radioactive uptake.

Main Methods:

• Clinical assessment of spleen size, hematocrit, platelet count, and red cell morphology in 18 thalassaemic children.
• Daily monitoring of spleen size in 14 children between transfusions.
• Spleen and liver 99mTc-sulfur colloid uptake studies in 10 children before and after transfusion.

Main Results:

• Spleen size significantly decreased 1-10 days after blood transfusion, then gradually increased before the next transfusion.
• Decreased spleen size correlated with increased hematocrit and platelet counts.
• A statistically significant increase in splenic radioactive uptake was observed post-transfusion, coinciding with spleen size reduction.

Conclusions:

• Splenic size in thalassaemia patients is directly related to the volume of blood sequestered within the organ.
• Post-transfusion reduction in spleen size is associated with increased splenic radioactive uptake, suggesting altered splenic function.