Prospective analysis of the incidence of deep venous thrombosis in bariatric surgery patients

Occult DVT was not observed preoperatively in RYGB patients, suggesting that routine preoperative DS is not necessary in the absence of VTE history. Prophylaxis of heparin and sequential compression devices appears satisfactory in preventing DVT with only a 1% incidence in patients with no prior history of VTE. Two of the 6 patients with prior history of VTE showed evidence of thrombus postoperatively. Although a small number of patients, this finding suggests that a caval filter should be placed preoperatively in RYGB patients with a history of VTE.