F2 and cancer: As shown in Table 1, age, BMI, platelet, alanine aminotransferase, alkaline phosphatase, prothrombin time (PT), internationalized standardized ratio of PT (PT-INR), D-dimer, Caprini score, affected side muscle strength, Glasgow Coma Scale GCS), length of hospital stay, history of alcohol consumption, history of smoking, complications (fracture, pulmonary infection, malignant tumor, dyskinesia), use of dehydrants, anticoagulant therapy, and use of hemostatic agents were associated with the spread of new MCVT thrombosis after craniotomy (P < 0.05).