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Value of HIV patients with regular follow-up as In-house Internal Controls of Flow Cytometry Measurement of Lymphocyte Subsets

Abstract : BackgroundQuality assessment in flow cytometry cannot obey the same rules as those applicable to the measurement of chemical analytes. However, regular follow-up of known patients may provide a robust in-house control of cell subsets evaluation.MethodsSequential blood samples assessed for 32 HIV patients over several years and showing good stability were retrospectively assessed to establish coefficient of variations of the percentages of CD3+, CD4+, CD8+ cells, and CD4+ absolute counts (ACs).ResultsMean relative standard variations for the whole cohort were of 0.04, 0.14, 0.08, and 0.18 for CD3%, CD4%, CD8%, and CD4 ACs, respectively.DiscussionIn-house follow-up of regularly checked compliant patients is a good alternative to traditional and costly repeatability and reproducibility studies for the validation of routine flow cytometry.
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https://hal.univ-lorraine.fr/hal-01483839
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Submitted on : Monday, March 6, 2017 - 3:15:58 PM
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Marcelo de Carvalho Bittencourt, Chantal Kohler, Sandrine Henard, Christian Rabaud, Marie C. Béné, et al.. Value of HIV patients with regular follow-up as In-house Internal Controls of Flow Cytometry Measurement of Lymphocyte Subsets. Cytometry Part B: Clinical Cytometry, Wiley, 2013, 84 (5), pp.324 - 326. ⟨10.1002/cyto.b.21112⟩. ⟨hal-01483839⟩

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