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Cardiac iron overload in transfusion-dependent patients with myelodysplastic syndromes
被引:47
|作者:
Roy, Noemi B. A.
[1
]
Myerson, Saul
[2
]
Schuh, Anna H.
[3
]
Bignell, Patricia
[3
]
Patel, Roger
[4
]
Wainscoat, Jim S.
[5
]
McGowan, Simon
[6
]
Marchi, Emanuele
[6
]
Atoyebi, Wale
[5
]
Littlewood, Tim
[5
]
Chacko, Joseph
[7
]
Vyas, Paresh
Killick, Sally B.
[7
]
机构:
[1] John Radcliffe Hosp, Weatherall Inst Mol Med, Mol Haematol Unit, Oxford OX3 9DS, England
[2] Oxford Radcliffe Hosp, Dept Cardiol, Oxford, England
[3] Oxford Radcliffe Hosp, Haemato Mol Diagnost Serv, Oxford, England
[4] Royal Bournemouth Hosp, Dept Radiol, Bournemouth, Dorset, England
[5] Oxford Radcliffe Hosp, Dept Haematol, Oxford, England
[6] Weatherall Inst Mol Med, Computat Biol Res Grp, Oxford, England
[7] Royal Bournemouth Hosp, Dept Haematol, Bournemouth, Dorset, England
关键词:
myelodysplastic syndromes;
magnetic resonance imaging;
transfusional iron overload;
hepatic R2*;
cardiac R2*;
MAGNETIC-RESONANCE;
MYOCARDIAL IRON;
ACQUIRED ANEMIAS;
THALASSEMIA;
CHELATION;
DISEASE;
D O I:
10.1111/j.1365-2141.2011.08749.x
中图分类号:
R5 [内科学];
学科分类号:
1002 ;
100201 ;
摘要:
Transfusion- dependent myelodysplastic (MDS) patients are prone to iron overload. We evaluated 43 transfused MDS patients with T2* magnetic resonance imaging scans. 81% had liver and 16.8% cardiac iron overload. Liver R2* (1000/T2*), but not cardiac R2*, was correlated with number of units transfused (r = 0.72, P < 0.0001) and ferritin (r = 0.53, P < 0.0001). The area under the curve of a time-ferritin plot was found to be much greater in patients with cardiac iron loading (median 53.7 x 10(5) Megaunits vs. 12.2 x 10(5) Megaunits, P = 0.002). HFE, HFE2, HAMP or SLC40A1 genotypes were not predictors of iron overload in these patients.
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页码:521 / 524
页数:4
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