title: Short-term outcomes in obese patients after colectomy for adenocarcinoma at a bariatric center.
abstract: BACKGROUND
  Obesity (body mass index ≥30) is associated with worse outcomes after colon cancer surgery. Most research, however, has been performed outside bariatric centers of excellence. We sought to determine the relationship between obesity and outcomes after colon cancer resection when performed at a center with bariatric expertise.
  
  
  METHODS
  We performed a retrospective review of 245 consecutive patients undergoing elective colectomy for adenocarcinoma at a single institution from 2008 to 2009. Body mass index, major and minor postoperative complications, tumor characteristics, lymph node yield, type of resection, and operating times were determined.
  
  
  RESULTS
  Complication rates, operative times, and lymph node counts were all similar between the two weight groups. Obese patients had similar tumor characteristics at all stages when compared with nonobese patients. On multivariate analysis, obesity did not correlate with tumor size, tumor differentiation, or presence of lymphovascular or perineural invasion.
  
  
  CONCLUSIONS
  We conclude that obese patients undergoing colon cancer resection at a bariatric center of excellence have similar tumor characteristics and equivalent short-term outcomes as do nonobese patients.
authors: Massachusetts General Hospital, Division of Gastrointestinal Surgery, Colon and Rectal Surgery Program, Harvard Medical School, 15 Parkman Street, WAC 460, Boston, MA 02114, USA.
authors: Zubin M
authors: ZM
authors: Bamboat
authors: Christine
authors: C
authors: Kinnier
authors: Abdulmetin
authors: A
authors: Dursun
authors: Cristina R
authors: CR
authors: Ferrone
authors: Paul C
authors: PC
authors: Shellito
authors: David L
authors: DL
authors: Berger
authors: Liliana
authors: L
authors: Bordeianou
mesh_terms: D000230:Adenocarcinoma / Q000150:complications / Q000473:pathology / Q000601:surgery*; D000368:Aged; D052938:Bariatric Medicine; D003082:Colectomy; D003110:Colonic Neoplasms / Q000150:complications / Q000473:pathology / Q000601:surgery*; D005260:Female; D006769:Hospitals, General; D006801:Humans; D016015:Logistic Models; D008197:Lymph Node Excision / Q000706:statistics & numerical data; D008297:Male; D008404:Massachusetts; D008875:Middle Aged; D015999:Multivariate Analysis; D009361:Neoplasm Invasiveness; D009765:Obesity / Q000150:complications*; D061646:Operative Time; D011183:Postoperative Complications / Q000453:epidemiology; D012189:Retrospective Studies; D013038:Specialization; D016896:Treatment Outcome