Thromboembolic disease is a pathological condition that encompasses deep vein thrombosis (DVT) and pulmonary embolism (PE). Obese individuals have a 2 to 3 times greater risk of developing venous thromboembolism (VTE); several pathophysiological mechanisms contribute to this correlation. The incidence of VTE in patients who have undergone bariatric surgery ranges from 0.1 to 3% and represents 20% of related mortality. The previous history of VTE, long surgical time (>3 hours) and the need for transfusion were the risk factors with the greatest impact on bariatric surgery. Thromboembolic risk stratification is essential to guide thromboprophylaxis. There are three tools specifically designed for bariatric surgery: The Cleveland Clinic calculator, BariClot and MBSC. Prophylaxis strategies include mechanical and pharmacological interventions. Various methods have been compared with the intention of identifying the most appropriate regimen for this patient population, however, evidence remains limited and results vary widely, so there is no consensus on the best treatment. This paper aims to carryout a narrative review of the most recent literature on thromboprophylaxis in patients undergoing bariatric surgery.
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