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Nontransferrin-bound iron in transfused patients with sickle cell disease.
MedLine Citation:
PMID:  21382180     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
The value of nontransferrin-bound iron (NTBI) as an index of iron overload in patients with thalassemia has been evaluated; however, data in patients with sickle cell disease (SCD) is limited. NTBI levels were evaluated in a cross-sectional study of 43 transfused patients with SCD. Patient charts were reviewed for demographics, status of the spleen, and total number of lifetime transfusions. All patients were chelation naïve and none of the patients had evidence of hepatitis B or C infection. Blood samples were taken for assessment of NTBI and serum ferritin (SF); liver iron concentration (LIC) was determined by R2 magnetic resonance imaging. NTBI levels were generally low with a median of -0.01 μm (range -2.56 to 6.37 μm). Among study variables, NTBI levels were only significantly correlated to age and total number of lifetime transfusions, whereas LIC and SF only significantly correlated with total number of lifetime transfusions. On multivariate analysis, only total number of lifetime transfusions remained independently correlated with NTBI (P = 0.001), SF (P < 0.001), and LIC (P < 0.001). On multivariate stepwise linear regression analysis, SF was a better predictor of LIC than NTBI. In transfused patients with SCD, NTBI levels are low yet correlate significantly with transfusion burden. However, they offer poor predictability of LIC when compared with SF.
Authors:
A Inati; K M Musallam; M D Cappellini; L Duca; A T Taher
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  International journal of laboratory hematology     Volume:  33     ISSN:  1751-553X     ISO Abbreviation:  Int J Lab Hematol     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-03-08     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101300213     Medline TA:  Int J Lab Hematol     Country:  England    
Other Details:
Languages:  eng     Pagination:  133-7     Citation Subset:  IM    
Copyright Information:
© 2010 Blackwell Publishing Ltd.
Affiliation:
Division of Pediatric Hematology and Oncology, Children's Center for Cancer and Blood Diseases, Rafik Hariri University Hospital, Beirut, Lebanon Nini Hospital, Tripoli, Lebanon Balamand University, Balamand, Lebanon Department of Internal Medicine, Hematology-Oncology Division, American University of Beirut Medical Center, Beirut, Lebanon Universitá di Milano, Policlinico Foundation IRCCS, Milan, Italy.
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