The incidence and risk factors of venous thromboembolism in hospitalized cancer patients

Cancer is a known risk factor for venous thromboembolism (VTE) in hospitalized patients. 1Many risk assessment models include active malignancy as a factor in determining the need for thromboprophylaxis in the inpatient medical setting. [2][3]3][4][5] For cancers requiring surgical treatment, the risk of inpatient VTE is also high and extends for 4-6 weeks postoperatively, particularly after abdominal or pelvic surgery. 6Due to the significant risk of VTE in cancer patients, thromboprophylaxis-whether medical or mechanical is recommended in the surgical setting. [7][8]8] However, in medically ill patients, active cancer alone does not typically score high enough in risk assessment models to warrant thromboprophylaxis for all patients. [2][3]3][4][5] Other factors, such as prolonged immobility and active infection, should also be considered. [2][3]3][4][5] It is important to note that the studies shaping these guidelines were primarily conducted in Western populations.In contrast, clinical practices in Asian countries, including Thailand, may not follow the same approach due to the lower prevalence of thrombosis and lower awareness of thrombotic risks.In this issue, Limpawittayakul, et al. explored the incidence of VTE in cancer patients admitted to the hospital for medical illness and surgical treatment.Additionally, they analyzed the risk factors for VTE in this subgroup of patients.The study demonstrated a high risk of VTE in this setting, with an overall incidence of 21.1%.The highest incidence of VTE was observed in patients undergoing surgical treatments, specifically