Objective: Obesity has become a worldwide epidemic that is directly related to chronic tissue inflammation and impaired fibrinolysis, both of which lead to an increased risk of thrombosis. The management of complications after bariatric surgery is still a challenge. The study aims to report the incidence of portomesenteric venous thrombosis (PMVT) in patients undergoing bariatric surgery. Introduction: Bariatric surgery is the procedure of choice for the treatment of obesity type III. Despite the safe technique, the surgeon must be aware of the risks linked to laparoscopy such as the PMVT. Computed tomography (CT) with intravenous contrast was the imaging method of choice for diagnosis. Materials and Methods: We performed a retrospective analysis of 4790 patients from August 1999 to June 2020 was observed the incidence of PMVT in this group. Of all patients, 72.8% were female and 27.2% male. The mean age was 46.3 years (34 - 72) and the mean BMI before bariatric surgery was 41.4 kg/m 2 . Results: The study showed an incidence of PMVT of 0.12% (N = 6), portal vein thrombosis was of 0.10% (n = 5) and 0.03% of MVT (n = 1). Of these, 72.5% (n = 3473 patients) underwent laparoscopic gastric bypass, 23.6% (n = 1131 patients) were submitted to the laparoscopic sleeve gastrectomy and 3.8% (n = 186 patients) to other procedures. The mean postoperative hospital stay for bariatric surgery was 3.3 days. The average time of hospital stay of patients complicated with PMVT range from 5 to 14 days. No patient died of complications related to PMVT. Conclusion: Portomesenteric vein thrombosis is a rare presentation after laparoscopic bariatric surgery. However, it is a serious complication that has a high index of suspicion for making its diagnosis. Conservative treatment using anticoagulants and thrombolytics is effective, it should always be considered the main treatment option. However, these patients must be followed up in the long term, as late complications can occur in high numbers of patients.
KeywordsMorbid ObesityLaparoscopyPortomesenteric Venous ThrombosisBariatric Surgery
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