Comparisons of oxygen gradient ektacytometry parameters between sickle cell patients with or without α-thalassaemia

  • Camille Boisson
  • , Céline Renoux
  • , Elie Nader
  • , Alexandra Gauthier
  • , Solène Poutrel
  • , Minke Rab
  • , Romain Fort
  • , Yves Bertrand
  • , Emeric Stauffer
  • , Giovanna Cannas
  • , Kamila Kebaili
  • , Emilie Virot
  • , Arnaud Hot
  • , Vivien Sheehan
  • , Eduard van Beers
  • , Richard van Wijk
  • , Philippe Joly
  • , Philippe Connes

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

The present study tested the impact of α-thalassaemia on oxygen gradient ektacytometry in sickle cell anaemia (SCA). Three SCA groups were compared: (i) no α-thalassaemia (four α-genes, n = 62), (ii) silent α-thalassaemia (three α-genes, n = 35) and (iii) homozygous α-thalassaemia (two α-genes, n = 12). Red blood cell (RBC) deformability measured in normoxia was not different between the three groups. The lowest RBC deformability reached at low oxygen partial pressure (pO2 ) was greater and the pO2 at which RBC started to sickle was lower in the two α-genes group compared to the other groups. Our present study showed an effect of α-thalassaemia on oxygen gradient ektacytometry in SCA.

Original languageEnglish
Pages (from-to)629-633
Number of pages5
JournalBritish Journal of Haematology
Volume195
Issue number4
Early online date15 Aug 2021
DOIs
Publication statusPublished - Nov 2021

Keywords

  • red blood cell deformability
  • sickle cell disease
  • sickling
  • α-thalassaemia

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