Deferasirox, deferiprone and desferrioxamine treatment in thalassemia major patients: cardiac iron and function comparison determined by quantitative magnetic resonance imaging.

Massimo Midiri, Luciano Prossomariti, Alessia Pepe, Cristina Malaventura, Antonella Quarta, Giuseppe Rossi, Alma Lippi, Antonella Meloni, Maria Grazia Bisconte, Massimiliano Missere, Lorella Pitrolo, Vincenzo Positano, Paolo Cianciulli, Aldo Filosa, Vincenzo Caruso, Marcello Capra, Maria Caterina Putti, Aurelio Maggio, Massimo Lombardi, Maria Antonietta Romeo

Risultato della ricerca: Article

100 Citazioni (Scopus)

Abstract

BackgroundOral deferiprone was suggested to be more effective than subcutaneous desferrioxamine for removing heart iron. Oral once-daily chelator deferasirox has recently been made commercially available but its long-term efficacy on cardiac iron and function has not yet been established. Our study aimed to compare the effectiveness of deferasirox, deferiprone and desferrioxamine on myocardial and liver iron concentrations and bi-ventricular function in thalassemia major patients by means of quantitative magnetic resonance imaging.Design and MethodsFrom the first 550 thalassemia subjects enrolled in the Myocardial Iron Overload in Thalassemia network, we retrospectively selected thalassemia major patients who had been receiving one chelator alone for longer than one year. We identified three groups of patients: 24 treated with deferasirox, 42 treated with deferiprone and 89 treated with desferrioxamine. Myocardial iron concentrations were measured by T2* multislice multiecho technique. Biventricular function parameters were quantitatively evaluated by cine images. Liver iron concentrations were measured by T2* multiecho technique.ResultsThe global heart T2* value was significantly higher in the deferiprone (34+/-11ms) than in the deferasirox (21+/-12 ms) and the desferrioxamine groups (27+/-11 ms) (P=0.0001). We found higher left ventricular ejection fractions in the deferiprone and the desferrioxamine versus the deferasirox group (P=0.010). Liver iron concentration, measured as T2* signal, was significantly lower in the desferrioxamine versus the deferiprone and the deferasirox group (P=0.004).ConclusionsThe cohort of patients treated with oral deferiprone showed less myocardial iron burden and better global systolic ventricular function compared to the patients treated with oral deferasirox or subcutaneous desferrioxamine.
Lingua originaleEnglish
pagine (da-a)41-47
Numero di pagine7
RivistaHaematologica
Volume96
Stato di pubblicazionePublished - 2011

All Science Journal Classification (ASJC) codes

  • Hematology

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