title: [Comparison of postoperative outcomes between hand-assisted laparoscopic and conventional sigmoidectomy: a prospective non-randomized controlled trial].
abstract: OBJECTIVE
  To compare the perioperative safety and efficacy between hand-assisted laparoscopic surgery(HALS) and conventional open sigmoidectomy.
  
  
  METHODS
  A total of 291 patients with sigmoid colon cancer who underwent surgery in our hospital from January 2010 to June 2013 were seperated into (HALS) group (n=200) and conventional open surgery (COS) group (n=91) with a non-randomized method. The perioperative safety and efficacy of two groups and perioperative outcomes were compared.
  
  
  RESULTS
  These two groups were comparable in operative time, lymph node harvest, and postoperative complications. However, HALS group had less intraoperative bleeding [(57.9±28.3) ml vs. (82.5±47.6) ml, P=0.000], shorter time to flatus [(3.0±1.4) d vs. (3.3±0.9) d, P=0.000], and shorter hospital stay [(7.3±4.2) d vs. (8.9±4.4) d, P=0.004]. There werer no significant differences in overall survival time and disease-free survival time between the two groups during 6 months to 3 years follow-up.
  
  
  CONCLUSIONS
  HALS results in similar outcomes of conventional open surgery for sigmoidectomy with the advantage of minimal invasiveness.
authors.affiliation: Department of Colorectal Cancer Surgery, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing 100142, China. zlgujin@126.com.
authors.forename: Xiao
authors.initials: X
authors.lastname: Zhang
authors.forename: Ming
authors.initials: M
authors.lastname: Li
authors.forename: Tiancheng
authors.initials: T
authors.lastname: Zhan
authors.forename: Dakui
authors.initials: D
authors.lastname: Zhang
authors.forename: Zhaoya
authors.initials: Z
authors.lastname: Gao
authors.forename: Yunfeng
authors.initials: Y
authors.lastname: Yao
authors.forename: Yifan
authors.initials: Y
authors.lastname: Peng
authors.forename: Jun
authors.initials: J
authors.lastname: Zhao
authors.forename: Jin
authors.initials: J
authors.lastname: Gu
mesh_terms: D003082:Colectomy; D018572:Disease-Free Survival; D058733:Hand-Assisted Laparoscopy; D006801:Humans; D007902:Length of Stay; D008198:Lymph Nodes; D061646:Operative Time; D011183:Postoperative Complications; D011184:Postoperative Period; D011446:Prospective Studies; D012811:Sigmoid Neoplasms; D016896:Treatment Outcome