title: [Efficacy evaluation of laparoscopy-assisted radical gastrectomy in obese patients with gastric cancer].
abstract: OBJECTIVE
  To investigate the influence of obesity on short-term outcomes after laparoscopy-assisted radical gastrectomy.
  
  
  METHODS
  Clinical data of 214 patients with gastric cancer, who underwent laparoscopy-assisted radical gastrectomy between May 2009 and December 2012 were analyzed retrospectively. Patients were divided into two groups, consisting of obese and non-obese patients. In the obese group, the BMI was ≥ 25.0 kg/m² (n=66), and in the non-obese group was <25.0 kg/m² (n=148). Operative procedure and postoperative recovery were compared between the two groups.
  
  
  RESULTS
  The operative time was longer in obese group than that in non-obese group [(271.5 ± 51.2) min vs. (252.1 ± 53.6) min, P<0.05]. The number of retrieved lymph nodes in obese group was less than that in non-obese group (26.2 ± 10.3 vs. 30.3 ± 12.4, P<0.05). No significant differences were observed in terms of blood loss, blood transfusion rate, conversion to laparotomy and time to first flatus between these two groups (all P>0.05). There were no significant differences between the two groups with respect to postoperative complications rate (25.8% vs. 20.9%, P>0.05) and perioperative mortality (1.5% vs. 0.7%, P>0.05). However, minor surgery-related complication rate was higher in obese group(16.7% vs. 6.8%, P<0.05), mainly presented as delayed gastric emptying. There was no difference in perioperative mortality between the two groups (1.5% vs. 0.7%, P>0.05).
  
  
  CONCLUSIONS
  Although obesity prolongs the duration of laparoscopy-assisted radical gastrectomy, and increases the risk of minor surgery-related complications, it has no influence on the surgical safety.
authors.affiliation: Department of Minimally Invasive Gastrointestinal Surgery, Beijing Cancer Hospital and Institute, Peking University Cancer Hospital, Peking University School of Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing 100142, China. suxiangqian@bjmu.edu.cn.
authors.forename: Hong
authors.initials: H
authors.lastname: Yang
authors.forename: Jiadi
authors.initials: J
authors.lastname: Xing
authors.forename: Ming
authors.initials: M
authors.lastname: Cui
authors.forename: Chenghai
authors.initials: C
authors.lastname: Zhang
authors.forename: Zhendan
authors.initials: Z
authors.lastname: Yao
authors.forename: Nan
authors.initials: N
authors.lastname: Zhang
authors.forename: Xiangqian
authors.initials: X
authors.lastname: Su
mesh_terms: D000368:Aged; D005260:Female; D005743:Gastrectomy / Q000379:methods*; D006801:Humans; D010535:Laparoscopy; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000150:complications*; D012189:Retrospective Studies; D013274:Stomach Neoplasms / Q000150:complications / Q000601:surgery*