PF4 and endothelial dysfunction: The release of P‐selectin and chemokines, including β‐thromboglobulin and platelet factor 4, can promote platelet‐leukocyte interactions and contribute to endothelial dysfunction (Bakogiannis et al., 2019; Kutlar & Embury, 2014; Totani & Evangelista, 2010), potentially impairing vascular integrity and blood flow.