title: Short-term outcomes for laparoscopy-assisted distal gastrectomy for body mass index ≥30 patients with gastric cancer.
abstract: BACKGROUND
  Obesity is known to be a preoperative risk factor for gastric cancer surgery. This study aimed to investigate the influence of obesity on the surgical outcomes of laparoscopy-assisted distal gastrectomy (LADG) for gastric cancer.
  
  
  METHODS
  The clinical data of 131 patients with gastric cancer from January 2010-December 2013 were analyzed retrospectively. Perioperative outcomes were compared between 43 patients with a body mass index (BMI) ≥30 kg/m(2) (obese group) and 88 patients with a BMI <30 kg/m(2) (nonobese group) who underwent LADG.
  
  
  RESULTS
  Operation times were significantly longer for the obese group than for the nonobese group (234.1 ± 57.2 min versus 212.2 ± 43.5 min, P = 0.026). There were no statistically significant differences between two groups in terms of intraoperative blood loss, the number of retrieved lymph nodes, postoperative recovery, and postoperative complications (P > 0.05). During the follow-up period of 5 mo-49 mo (average, 36 mo), the overall survival rates were not significantly different between the two groups (80.0% [32/40] versus 81.9% [68/83], P > 0.05). The differences in recurrence and metastasis between the two groups were not statistically significant.
  
  
  CONCLUSIONS
  Our analysis revealed that LADG can be safely performed in patients with BMI ≥30. The procedure was considered to be difficult but sufficiently feasible.
authors.affiliation: Department of Abdominal Surgical Oncology, Cancer Hospital of the Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, The People's Republic of China.
authors.forename: Zheng
authors.initials: Z
authors.lastname: Wang
authors.affiliation: Department of Abdominal Surgical Oncology, Cancer Hospital of the Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, The People's Republic of China.
authors.forename: Xingmao
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Department of Abdominal Surgical Oncology, Cancer Hospital of the Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, The People's Republic of China.
authors.forename: Jianwei
authors.initials: J
authors.lastname: Liang
authors.affiliation: Department of Abdominal Surgical Oncology, Cancer Hospital of the Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, The People's Republic of China.
authors.forename: Junjie
authors.initials: J
authors.lastname: Hu
authors.affiliation: Department of Abdominal Surgical Oncology, Cancer Hospital of the Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, The People's Republic of China.
authors.forename: Weigen
authors.initials: W
authors.lastname: Zeng
authors.affiliation: Department of Abdominal Surgical Oncology, Cancer Hospital of the Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, The People's Republic of China. Electronic address: zhouzx2014@gmail.com.
authors.forename: Zhixiang
authors.initials: Z
authors.lastname: Zhou
mesh_terms: D000328:Adult; D000368:Aged; D015992:Body Mass Index; D002681:China / Q000453:epidemiology; D005260:Female; D005743:Gastrectomy / Q000706:statistics & numerical data*; D006801:Humans; D010535:Laparoscopy / Q000706:statistics & numerical data*; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000150:complications*; D012189:Retrospective Studies; D013274:Stomach Neoplasms / Q000150:complications* / Q000401:mortality / Q000601:surgery*
keywords: Body mass index; Gastric cancer; Laparoscopy; Obese; Treatment outcome