{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,16]],"date-time":"2026-10-16T03:11:44Z","timestamp":1792120304440,"version":"4.4.0"},"reference-count":27,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2021,12,3]],"date-time":"2021-12-03T00:00:00Z","timestamp":1638489600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Br J Haematol"],"published-print":{"date-parts":[[2022,6]]},"abstract":"<jats:title>Summary<\/jats:title><jats:p>The loss of red blood cell (RBC) deformability in sickle cell anaemia (SCA) is considered the primary factor responsible for episodes of acute pain and downstream progressive organ dysfunction. Oxygen gradient ektacytometry (Oxygenscan) is a recently commercialised functional assay that aims to describe the deformability of RBCs in SCA at differing oxygen tensions. So far, the Oxygenscan has been evaluated only by a small number of research groups and the validity and clinical value of Oxygenscan\u2010derived biomarkers have not yet been fully established. In this study we examined RBC deformability measured with the Oxygenscan in 91 children with SCA at King\u2019s College Hospital in London. We found a significant correlation between Oxygenscan\u2010derived biomarkers and well\u2010recognised modifiers of disease severity in SCA: haemoglobin F and co\u2010inherited \u03b1\u2010thalassaemia. We failed, however, to find any independent predictive value of the Oxygenscan in the clinical outcome measure of pain, as well as other important parameters such as hydroxycarbamide treatment. Although the Oxygenscan remains an intriguing tool for basic research, our results question whether it provides any additional information in predicting the clinical course in children with SCA, beyond measuring known markers of disease severity.<\/jats:p>","DOI":"10.1111\/bjh.17975","type":"journal-article","created":{"date-parts":[[2021,12,3]],"date-time":"2021-12-03T08:11:44Z","timestamp":1638519104000},"page":"609-617","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Oxygen gradient ektacytometry does not predict pain in children with sickle cell anaemia"],"prefix":"10.1111","volume":"197","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5256-7330","authenticated-orcid":false,"given":"Amina","family":"Nardo\u2010Marino","sequence":"first","affiliation":[{"name":"Department of Haematology Centre for Haemoglobinopathies Copenhagen University Hospital (Rigshospitalet)  Copenhagen Denmark"},{"name":"Department of Immunology and Microbiology Centre for Medical Parasitology University of Copenhagen  Copenhagen Denmark"},{"name":"Department of Haematological Medicine King's College Hospital  London United Kingdom"},{"name":"School of Cancer and Pharmaceutical Sciences King's College London  London United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6116-5114","authenticated-orcid":false,"given":"Jesper","family":"Petersen","sequence":"additional","affiliation":[{"name":"Department of Haematology Centre for Haemoglobinopathies Copenhagen University Hospital (Rigshospitalet)  Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6129-4300","authenticated-orcid":false,"given":"John N.","family":"Brewin","sequence":"additional","affiliation":[{"name":"Department of Haematological Medicine King's College Hospital  London United Kingdom"},{"name":"School of Cancer and Pharmaceutical Sciences King's College London  London United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Henrik","family":"Birgens","sequence":"additional","affiliation":[{"name":"Department of Haematology Centre for Haemoglobinopathies Copenhagen University Hospital (Rigshospitalet)  Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas N.","family":"Williams","sequence":"additional","affiliation":[{"name":"KEMRI\/Wellcome Trust Research Programme  Kilifi Kenya"},{"name":"Department of Medicine Imperial College London  London United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2760-8713","authenticated-orcid":false,"given":"J\u00f8rgen A. 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