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  • Title: Effect of combined chelation therapy with deferiprone and deferoxamine on left ventricular diastolic function in adult beta-thalassemia major patients.
    Author: Tsiapras D, Fragatou S, Farmaki K, Kyrzopoulos S, Paraskevaidis I, Voudris V, Kremastinos D.
    Journal: Hemoglobin; 2010 Jun; 34(3):210-20. PubMed ID: 20524811.
    Abstract:
    Beta-thalassemia major (beta-TM), patients, asymptomatic and with preserved left ventricular ejection fraction (LVEF) were studied echocardiographically. Group A (26 patients), on deferiprone (L1) and deferoxamine (DFO) combination therapy (L1: 80 +/- 27 mg/kg/day, DFO: 160 +/- 87 mg/kg/week) and group B (35 patients) on DFO monotherapy (240 +/- 40 mg/kg/week) for the last 2 years were compared. Another group, C (14 patients), switched to L1 (74 +/- 15 mg/kg/day) plus DFO (158 +/- 48 mg/kg/week) for 20-30 months, was prospectively studied for 2 years. In group A, MRI T2* values were increased and improved in group C during follow-up. The LVEF was better in group A than in group B, while such an improvement was also detected in the group C follow-up study. The Tissue Doppler study E' velocity and E/E' ratio was not different. Similarly, in the group C follow-up no significant change in E/E' ratio was detected. It seems that although LVEF significantly improves with combined therapy, diastolic function indexes do not show a similar change.
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