Figure 1. The graph shows the post-operative platelet (PLT) count fluctuation in relation to post-operative days (PODs) and therapeutic interventions. 52: POD4 PLTs count 52 (LMWH stopped); 33: POD5 PLTs count 33 (HIT screening sent); 22: POD8 PLTs count 22 (ELISA results false-negative, fondaparinux stopped, 1 pool PLTs transfused); 51: POD9 vWs protease (ADAMTS13), vWs inhibitor, Coombs, LDH sent, POD16 TTP diagnosis confirmed; 20: POD17 (plasma exchange × 6); 236: POD25 (PLTs count normalized).