Prognostic value of trisomy 8 as a single anomaly and the influence of additional cytogenetic aberrations in primary myelodysplastic syndromes.

Trisomy 8 is the most common chromosomal gain in myelodysplastic syndromes (MDS), however, little is known about the features of MDS with isolated trisomy 8 and the influence of additional cytogenetic aberrations. We determined the characteristics and prognostic factors of 72 patients with trisomy 8 as a single anomaly and analysed also the impact of other aberrations added to trisomy 8 in another 62 patients. According to our study, MDS with isolated trisomy 8 was more frequent in men, with more than one cytopenia in most patients (62%) and having about 4% bone marrow blasts. The multivariate analysis demonstrated that platelet count and percentage bone marrow blasts had the strongest impact on overall survival (OS). The median OS for isolated trisomy 8, trisomy 8 plus one aberration (tr8 + 1), plus two (tr8 + 2) and plus three or more aberrations (tr8 + ≥3) was 34·3, 40, 23·4 and 5·8 months, respectively (P < 0·001). Trisomy 8 confers a poorer prognosis than a normal karyotype in MDS patients with ≥5% bone marrow blasts. This study supports the view that MDS with isolated trisomy 8 should be included in the intermediate cytogenetic risk group. © 2012 Blackwell Publishing Ltd.

Citation

Sílvia Saumell, Lourdes Florensa, Elisa Luño, Carmen Sanzo, Consuelo Cañizo, Jesus M Hernández, José Cervera, Miguel A Gallart, Félix Carbonell, Rosa Collado, Leonor Arenillas, Carme Pedro, Joan Bargay, Benet Nomdedeu, Blanca Xicoy, Teresa Vallespí, José M Raya, Luis Belloch, Guillermo F Sanz, Francesc Solé. Prognostic value of trisomy 8 as a single anomaly and the influence of additional cytogenetic aberrations in primary myelodysplastic syndromes. British journal of haematology. 2012 Nov;159(3):311-21

Mesh Tags

PMID: 22958186

search → result