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  • Title: Hypocellularity in myelodysplastic syndrome is an independent factor which predicts a favorable outcome.
    Author: Yue G, Hao S, Fadare O, Baker S, Pozdnyakova O, Galili N, Woda BA, Raza A, Wang SA.
    Journal: Leuk Res; 2008 Apr; 32(4):553-8. PubMed ID: 17888511.
    Abstract:
    Hypocellular myelodysplastic syndrome (MDS) represents only a small portion of MDS, of which, the clinical significance has not been well-defined. By using currently accepted age-adjusted criteria to define hypocellularity as <30% in patients <70 years old, and <20% in >70 years old, we identified 163 (15.5%) hypocelluar MDS from 1049 consecutive adult MDS patients over an 11-year period (1995-2006). Compared to normal/hypercellular MDS, hypocellular MDS patients were younger (p<0.01), less anemic (p=0.02), but more neutropenic (p<0.001) and thrombocytopenic (p=0.05), and had a comparable cytogenetic risk group distribution (p=0.09) and international prognostic scores (IPSS, p=0.13). With a median follow-up of 52 months, hypocellular MDS showed a favorable overall survival (56 months versus 28 months, log-rank p<0.0001) over normal/hypocellular MDS, and this survival preference was also demonstrated in all IPSS groups and cytogenetic risk groups, and was independent of all other risk factors (Cox regression test, p=0.01). In conclusion, our study demonstrated that hypocellular MDS has characteristic clinicopathologic features, and bone marrow hypocellularity in MDS is an independent factor which predicts a favorable outcome.
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