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  • Title: Spleen function in children with sickle B+ thalassemia.
    Author: Barrios NJ, Kirkpatrick DV, Lohman D, McMullen CC, Wilson W, Humbert JR.
    Journal: J Natl Med Assoc; 1991 Sep; 83(9):819-22. PubMed ID: 1942116.
    Abstract:
    Splenic function in patients with sickle B+ (SB+) thalassemia has been poorly documented. We evaluated the clinical course and splenic function in 12 children with SB+ thalassemia with simultaneous technetium sulfur colloid spleen scans and determination of pitted erythrocytes by direct interference contrast microscopy (DICM). All patients displayed normal uptake of radiocolloid. Mean percentage of pitted erythrocytes was 2.2% compared to 0.06% in 10 normal eusplenic controls and 13.8% in 10 sickle cell patients. In this group of children, who were carefully monitored for 136 patient years, there was no episode of bacteremia/sepsis, and a low prevalence of vaso-occlusive episodes. The slight increase in percentage of pitted erythrocytes of SB+ thalassemia patients does not seem to herald any clinically relevant loss of splenic function. SB+ thalassemia children younger than 10 years of age who do not seem to present a higher risk of invasive bacterial infections than eusplenic children, should receive conservative treatment for isolated febrile episodes and should not be submitted to prophylactic penicillin.
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