C0393 Risk factors and prevalence of venous thromboembolism in internal medicine: A retrospective study of 806 patients

disease. We aim to study the prevalence and the cancer types in patients with deep venous thrombosis (DVT). Methods: A retrospective study of patients with established DVT confirmed with Doppler ultrasound. Cancer was suspected according to clinical and biological signs and confirmed by radiological or histological examination. Results: One hundred and eight among the 806 patients with DVP had cancer-associated thrombosis (13.39%) Themean age at the diagnosis of DVT was 63.5 years (20–87 years). They were 65 men and 43 women. Urological cancers were the most frequently associated with DVT, they were found in 33 cases (30,5%). In others cases, cancer location was the digestive tract in 19 cases (17.5%), gynecological cancers in 18 cases (16%), lung cancer in 12 cases (11, 1%), hematological malignancy in 9 cases (8,3%) brain cancer in 8 cases (7,4%) and head and neck cancers in 5 cases (4,6%). In 50% of cases thrombosis had revealed the cancer. Comment: Cancer patients are well-known to be at increased risk of DVT. However the risk varies widely between patients. Others comorbidities of patients, cancer stage and treatment modalities plays an important role in thrombosis. Thrombotic manifestations are common and potentially lethal in patients with active cancer, Extensive screening for cancer in patients with idiopathic thromboembolism help to detect the majority of malignancies.