Technical advances in flow cytometry-based diagnosis and monitoring of paroxysmal nocturnal hemoglobinuria

نویسندگان

  • Rodolfo Patussi Correia
  • Laiz Cameirão Bento
  • Ana Carolina Apelle Bortolucci
  • Anderson Marega Alexandre
  • Andressa da Costa Vaz
  • Daniela Schimidell
  • Eduardo de Carvalho Pedro
  • Fabricio Simões Perin
  • Sonia Tsukasa Nozawa
  • Cláudio Ernesto Albers Mendes
  • Rodrigo de Souza Barroso
  • Nydia Strachman Bacal
چکیده

Objective: To discuss the implementation of technical advances in laboratory diagnosis and monitoring of paroxysmal nocturnal hemoglobinuria for validation of high-sensitivity flow cytometry protocols. Methods: A retrospective study based on analysis of laboratory data from 745 patient samples submitted to flow cytometry for diagnosis and/or monitoring of paroxysmal nocturnal hemoglobinuria. Results: Implementation of technical advances reduced test costs and improved flow cytometry resolution for paroxysmal nocturnal hemoglobinuria clone detection. Conclusion: High-sensitivity flow cytometry allowed more sensitive determination of paroxysmal nocturnal hemoglobinuria clone type and size, particularly in samples with small clones. Objetivo: Discutir as melhorias técnicas no diagnóstico e no acompanhamento laboratorial de hemoglobinúria paroxística noturna para a validação da técnica de citometria de fluxo de alta sensibilidade. Métodos: Estudo retrospectivo, que envolveu a análise de dados laboratoriais de 745 pacientes com hipótese diagnóstica e/ou acompanhamento de hemoglobinúria paroxística noturna por citometria de fluxo. Resultados: Os avanços técnicos não só reduziram o custo do ensaio, mas também melhoraram a identificação e a resolução da citometria de fluxo para a detecção de clone hemoglobinúria paroxística noturna. Conclusão: A citometria de fluxo de alta sensibilidade possibilitou a identificação do tipo e do tamanho de clone de hemoglobinúria paroxística noturna, especialmente em amostras com pequeno clone.

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عنوان ژورنال:

دوره 14  شماره 

صفحات  -

تاریخ انتشار 2016