Heparin-induced thrombocytopenia is the most clinically relevant non-haemorrhagic complication of heparin and is characterised by the presence of anti-PF4/heparin-IgG antibodies. The circulating PF4/heparin-IgG immune complex binds to platelets via their FcyIIa receptors. activating them and promoting their aggregation. with consequent platelet consumption. https://www.popularfilm.blog/