title: Comparison of outcomes after single-port laparoscopic cholecystectomy in relation to patient body mass index.
abstract: OBJECTIVE
  Single-port laparoscopic cholecystectomy may contribute to a paradigm shift in the field of laparoscopic cholecystectomy surgery by providing patients with benefits beyond those observed after other surgical procedures. This study was designed to evaluate clinically meaningful differences in operative outcomes between obese and nonobese patients after single-port laparoscopic cholecystectomy.
  
  
  METHODS
  Data were collected retrospectively from 172 patients who had undergone single-port laparoscopic cholecystectomy performed by the same surgeon at a single medical center between January and December 2011. For the outcome analysis, patients were divided into nonobese and obese patient groups according to their body mass index (<25 kg/m2 vs ≥25 kg/m2).
  
  
  RESULTS
  Demographic and clinical data did not differ significantly between obese patients (n=65) and nonobese patients (n=107). In addition, statistically significant differences pertaining to most measured surgical outcomes including postoperative hospital stay, bile spillage, additional port use, and open conversion were not detected between the groups. However, the two groups differed significantly regarding operative time such that nonobese patients had shorter operative times than obese patients (P<.05).
  
  
  CONCLUSIONS
  The results of this study showed that operative time for single-port laparoscopic cholecystectomy was the only difference between obese and nonobese patients. Given this result, body mass index may not be as relevant a factor in patient selection for single-port laparoscopic cholecystectomy as previously thought.
authors.affiliation: Dong-A University College of Medicine, Busan, South Korea.
authors.forename: Eun Jeong
authors.initials: EJ
authors.lastname: Jang
authors.affiliation: Department of Surgery, Dong-A University College of Medicine, Busan, South Korea.
authors.forename: Young Hoon
authors.initials: YH
authors.lastname: Roh
authors.affiliation: Department of Surgery, Dong-A University College of Medicine, Busan, South Korea.
authors.forename: Chan Joong
authors.initials: CJ
authors.lastname: Choi
authors.affiliation: Department of Surgery, Dong-A University College of Medicine, Busan, South Korea.
authors.forename: Min Chan
authors.initials: MC
authors.lastname: Kim
authors.affiliation: Department of Surgery, Dong-A University College of Medicine, Busan, South Korea.
authors.forename: Kwan Woo
authors.initials: KW
authors.lastname: Kim
authors.affiliation: Department of Surgery, Dong-A University College of Medicine, Busan, South Korea.
authors.forename: Hong Jo
authors.initials: HJ
authors.lastname: Choi
mesh_terms: D015992:Body Mass Index; D017081:Cholecystectomy, Laparoscopic / Q000379:methods*; D005260:Female; D005705:Gallbladder Diseases / Q000150:complications / Q000601:surgery*; D006801:Humans; D007902:Length of Stay / Q000639:trends; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000150:complications*; D061646:Operative Time; D012189:Retrospective Studies
keywords: Body mass index (BMI); Laparoscopic cholecystectomy; Single port