Application of Laparoscopic Gastrectomy in Obese Patients (BMI≥30 kg/m2) with Gastric Cancer: A Comparison With Open Gastrectomy Regarding Short-term Outcomes

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Objective:Few studies have compared the surgical outcomes of laparoscopic (LG) and open (OG) gastrectomy in obese patients (BMI≥30 kg/m2) with gastric cancer. The current study aimed to investigate the short-term outcomes of LG in this group of patients.Methods:A total of 33 LG cases and 23 OG cases (BMI≥30 kg/m2) were identified from our gastric cancer database. Clinicopathologic features, operative details, laboratory examination, and postoperative outcomes were compared between both groups. Regression analysis was used to determine the effects of BMI on intraoperative outcomes.Results:The 2 groups had comparable clinicopathologic characteristics. LG was associated with significantly lesser blood loss, whereas both also groups had a similar operative time, and number of harvested lymph nodes. However, regression analysis indicated that increased BMI affected the operative time and blood loss in patients that underwent OG but had little effect on patients who received LG. The elevation of inflammatory factors (WBC, CRP) was lower in LG than in OG, postoperatively. Postoperative hepatic (alanine aminotransferase, total bilirubin, albumin) and renal (creatinine, blood urea nitrogen) functions in the LG group were not worse than in the OG group. The time to first flatus, initiation of diet, hospitalization, and postoperative complications seemed superior in LG than in OG, but these differences were not statistically significant.Conclusion:LG can be safely performed in obese gastric cancer patients. Compared with conventional OG, LG is less invasive and is characterized by less blood loss and milder surgical trauma. LG is also less adversely affected by increased BMI.

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