Biomarkers of Complement and Platelet Activation are not correlated with the One or Twenty-Four Hours Corrected Count Increments in Prophylactically Platelet Transfused Hematological Patients: a Prospective Cohort Study

Autor: Alexander Åkesson, Marcus Ljungkvist, Myriam Martin, Anna M. Blom, Jenny Klintman, Ulf Schött, Eva Zetterberg, Thomas Kander
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Platelets, Vol 33, Iss 3, Pp 350-359 (2022)
Druh dokumentu: article
ISSN: 0953-7104
1369-1635
09537104
DOI: 10.1080/09537104.2021.1942817
Popis: Platelet transfusion refractoriness is a serious clinical concern that complicates the management of thrombocytopenic patients. Previous studies have suggested a potential role for both complement and platelet activation based on in vitro analyses of platelet concentrates. In this study, the post-transfusion platelet response, as indicated by the corrected count increment at 1 and 24 h after prophylactic platelet transfusions, respectively, was correlated with the 1 h post-transfusion Δconcentration (1 h post-transfusion – pretransfusion) of complement and platelet activation biomarkers. The study was registered as a clinical trial at ClinicalTrials.gov (identifier: NCT02601131) and patients were recruited during inpatient care in the hematological department. Soluble terminal complement complexes, soluble P-selectin and soluble CD40 ligand were analyzed. Confirmed alloimmunized patients were excluded. Included subjects were either given platelet transfusions (n = 43) and categorized into four clinical study groups or included in a non-transfused control group (n = 10). In total, 54 transfusions were included. No transfusion-mediated complement activation was observed. The transfusions were associated with a significant increase in the concentration of soluble P-selectin (p < .001), primarily corresponding to the passive infusion of soluble P-selectin-containing plasma residuals. The Δconcentration of soluble P-selectin was, however, not significantly correlated with the corrected count increments. Thus, significant correlations between biomarkers of complement and platelet activation and the post-transfusion platelet response could not be demonstrated in this study.
Databáze: Directory of Open Access Journals
Externí odkaz:
Nepřihlášeným uživatelům se plný text nezobrazuje