INFECTIONS IN THALASSEMIA AND HEMOGLOBINOPATHIES

Bianca Maria Ricerca, Arturo Di Girolamo, Deborah Rund
  • Arturo Di Girolamo
    Infectious Diseases Department, G. d’Annunzio University, Chieti-Pescara (Italy), Italy
  • Deborah Rund
    University-Hadassah Medical Center, Ein Kerem, Jerusalem, Israel IL,

Abstract

 

The clinical approach to thalassemia and hemoglobinopathies, specifically Sickle Cell Disease (SCD), based on transfusions, iron chelation and bone marrow transplantation has ameliorated their prognosis. Nevertheless, infections still may cause serious complications in these patients. The susceptibility to infections in thalassemia and SCD arises both from a large spectrum of immunological abnormalities and from exposure to specific infectious agents. Four fundamental issues will be focused upon as central causes of immune dysfunction: the diseases themselves; iron overload, transfusion therapy and the role of the spleen. Thalassemia and SCD differ in their pathogenesis and clinical course. It will be outlined how these differences affect immune dysfunction, the risk of infections and the types of most frequent infections in each disease. Moreover, since transfusions are a fundamental tool for treating these patients, their safety is paramount in reducing the risks of infections. In recent years, careful surveillance worldwide and improvements in laboratory tests reduced greatly transfusion transmitted infections, but the problem is not completely resolved. Finally, selected topics will be discussed regarding Parvovirus B19 and transfusion transmitted infections as well as the prevention of infectious risk postsplenectomy or in presence of functional asplenia.

Keywords

Infectious diseases, Thalassemia, Sickle cell disease, Immune dysfunction, iron overload, allogenic blood transfusions, splenectomy

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Submitted: 2014-06-11 11:31:23
Published: 2009-12-28 00:00:00
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