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  • Title: Effects of combined deferiprone and deferoxamine chelation therapy on iron load indices in beta-thalassemia.
    Author: Tsironi M, Assimakopoulos G, Polonofi K, Rigaki K, Aessopos A.
    Journal: Hemoglobin; 2008; 32(1-2):29-34. PubMed ID: 18274980.
    Abstract:
    The benefits of combined deferoxamine (DFO) and deferiprone (L1) chelation therapy, focusing on reducing myocardial iron loading, have been widely reported. Herein, we present the efficacy of combined chelation and its effects on iron load indices. Five thalassemia major (TM) patients who were undergoing chelation monotherapy with DFO were enrolled. Inclusion criteria were magnetic resonance imaging (MRI) T2* values, indicating serious heart and/or liver transfusional hemosiderosis. Combined therapy was started with the same dose of DFO and the addition of L1. The MRI T2* studies were repeated 18 months later. An Echo-Doppler study was performed in order to further evaluate the left ventricular (LV) systolic function. Within the 18 months' follow-up period, there was a significant statical decrease in mean serum ferritin levels. All patients increased their MRI T2* liver values, while two patients with very low MRI T2* also increased their myocardial values. The MRI ejection fraction (EF) and Echo-Doppler study measurements confirmed the improvement of systolic function. No adverse effects were reported. Combined L1 and DFO therapy seems to be effective in reducing iron excess in organ iron overloaded thalassemic patients. Magnetic resonance imaging can accurately quantify iron load, while echocardiography remains a reliable monitoring technology.
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