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American journal of hematology v.93 no.7, 2018년, pp.943 - 952  

The effect of iron chelation therapy on overall survival in sickle cell disease and β‐thalassemia: A systematic review

Ballas, Samir K. (Thomas Jefferson University, Philadelphia, Pennsylvania ) ; Zeidan, Amer M. (Yale Cancer Center, New Haven, Connecticut ) ; Duong, Vu H. (University of Maryland School of Medicine, Baltimore, Maryland ) ; DeVeaux, Michelle (Yale School of Public Health, New Haven, Connecticut ) ; Heeney, Matthew M. (Harvard Medical School, Dana‐Farber/Boston Children's Cancer and Blood Disorders Center, Boston, Massachusetts ) ;
  • 초록  

    Abstract Red blood cell transfusions have become standard of care for the prevention of life‐threatening anemia in patients with β‐thalassemia and sickle cell disease (SCD). However, frequent transfusions can lead to accumulation of iron that can result in liver cirrhosis, diabetes mellitus, arthritis, arrhythmias, cardiomyopathy, heart failure, and hypogonadotropic hypogonadism. Iron chelation therapy has been shown to reduce serum ferritin levels and liver iron content, but limitations of trial design have prevented any demonstration of improved survival. The objective of this systematic review was to investigate the impact of iron chelation therapy on overall and event‐free survival in patients with β‐thalassemia and SCD. Eighteen articles discussing survival in β‐thalassemia and 3 in SCD were identified. Overall iron chelation therapy resulted in better overall survival, especially if it is instituted early and compliance is maintained. Comparative studies did not show any significant differences between available iron chelation agents, although there is evidence that deferiprone is better tolerated than deferoxamine and that compliance is more readily maintained with the newer oral drugs, deferiprone and deferasirox. Iron chelation therapy, particularly the second‐generation oral agents, appears to be associated with improved overall and event‐free survival in transfusion‐dependent patients with β‐thalassemia and patients with SCD.


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