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Key clinical point: Single-nucleotide polymorphism array (SNP-A)-based whole genome sequencing capable of detecting uniparental disomy (UPD) offers more diagnostic and prognostic information than conventional metaphase cytogenetic analysis (MC) in patients with myelodysplastic syndrome (MDS).
Major finding: SNP-A had a higher positivity for significant chromosomal aberrations than MC (58.2% vs. 36.9%; P less than .05). SNP-A detected 78 chromosomal alterations including 38 UPDs that were undetected by MC in 40 patients. Additionally, patients with vs. without UPD had a worse prognosis (P = .01).
Study details: Data come from a comparative analysis of SNP-A and MC in 127 patients with MDS (n=110) and related diseases, including myelodysplastic/myeloproliferative neoplasm (n=6) and transformed acute myeloid leukemia (n=11).
Disclosures: This study received experimental research funding from the National Natural Science Foundation of China, the Sichuan Provincial Academic and Technical Leadership Support Funding Project, and Innovation Development Program of Chengdu. The authors declared no conflicts of interest.
Source: Ou Y et al. Int J Lab Hematol. 2021 Mar 2. doi: 10.1111/ijlh.13502.
Key clinical point: Single-nucleotide polymorphism array (SNP-A)-based whole genome sequencing capable of detecting uniparental disomy (UPD) offers more diagnostic and prognostic information than conventional metaphase cytogenetic analysis (MC) in patients with myelodysplastic syndrome (MDS).
Major finding: SNP-A had a higher positivity for significant chromosomal aberrations than MC (58.2% vs. 36.9%; P less than .05). SNP-A detected 78 chromosomal alterations including 38 UPDs that were undetected by MC in 40 patients. Additionally, patients with vs. without UPD had a worse prognosis (P = .01).
Study details: Data come from a comparative analysis of SNP-A and MC in 127 patients with MDS (n=110) and related diseases, including myelodysplastic/myeloproliferative neoplasm (n=6) and transformed acute myeloid leukemia (n=11).
Disclosures: This study received experimental research funding from the National Natural Science Foundation of China, the Sichuan Provincial Academic and Technical Leadership Support Funding Project, and Innovation Development Program of Chengdu. The authors declared no conflicts of interest.
Source: Ou Y et al. Int J Lab Hematol. 2021 Mar 2. doi: 10.1111/ijlh.13502.
Key clinical point: Single-nucleotide polymorphism array (SNP-A)-based whole genome sequencing capable of detecting uniparental disomy (UPD) offers more diagnostic and prognostic information than conventional metaphase cytogenetic analysis (MC) in patients with myelodysplastic syndrome (MDS).
Major finding: SNP-A had a higher positivity for significant chromosomal aberrations than MC (58.2% vs. 36.9%; P less than .05). SNP-A detected 78 chromosomal alterations including 38 UPDs that were undetected by MC in 40 patients. Additionally, patients with vs. without UPD had a worse prognosis (P = .01).
Study details: Data come from a comparative analysis of SNP-A and MC in 127 patients with MDS (n=110) and related diseases, including myelodysplastic/myeloproliferative neoplasm (n=6) and transformed acute myeloid leukemia (n=11).
Disclosures: This study received experimental research funding from the National Natural Science Foundation of China, the Sichuan Provincial Academic and Technical Leadership Support Funding Project, and Innovation Development Program of Chengdu. The authors declared no conflicts of interest.
Source: Ou Y et al. Int J Lab Hematol. 2021 Mar 2. doi: 10.1111/ijlh.13502.