Abstract
The aim of this study was to compare the effect of different long-term chelation regimens on heart and liver iron stores with the use of T2* magnetic resonance imaging (MRI) in patients with transfusion-dependent beta-thalassemia major. Sixty-four patients (28 men, 36 women; mean age, 26.49 +/- 5.8 years) were enrolled in the study. The 3 groups were based on the chelation therapy received. The first group (19 patients) received deferiprone (DFP) (75 mg/kg per day orally), the second group (23 patients) received deferoxamine (DFO) (30-50 mg/kg per day subcutaneously at least 5 times/week), and the third group (22 patients) received a combination of DFO (30-50 mg/kg per day, 2-3 days/week) and DFP (75 mg/kg per day, 7 days/week). MRI scans were acquired with an imager equipped with a 1.5 T magnet, and the data included myocardial and hepatic iron measurements obtained by means of T2*, and ventricular volumes and ejection fractions obtained with standard cardiovascular MRI techniques. The results revealed that the DFP and the combined groups had significantly less myocardial iron than the DFO group (mean myocardial T2*, 35.77 +/- 18.3 milliseconds and 38.05 +/- 15.3 milliseconds versus 23.77 +/- 13 milliseconds [P = .02, and P = ...Continue Reading
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