Prevalence of thrombocytopenia, anti-platelet factor 4 antibodies and D-dimer elevation in Thai people After ChAdOx1 nCoV-19 vaccination.

Noppacharn UaprasertPhandee WatanaboonyongcharoenRattaporn VichitratchaneekornSasinipa TrithiphenBenjaporn AkkawatAutcharaporn SukpermThanisa TongbaiWatsamon JantarabenjakulLeilani PaitoonpongPonlapat Rojnuckarin

Published in: Research and practice in thrombosis and haemostasis (2021)

This study demonstrated a low prevalence of thrombocytopenia and pathogenic anti-PF4 Abs after ChAdOx1 vaccination. D-dimer testing revealed no significant coagulation activation. Routine tests for platelet counts, anti-PF4 Abs, and D-dimer levels are not recommended for VITT screening without clinical suspicion.

Keyphrases

risk factors
single cell
peripheral blood