title: Outcomes of repeat colonoscopy in patients with polyps referred for surgery without biopsy-proven cancer.
abstract: BACKGROUND
  Despite advances in endoscopic treatment, many colonic adenomas are still referred for surgical resection. There is a paucity of data on the suitability of these lesions for endoscopic treatment.
  
  
  OBJECTIVE
  To analyze the results of routine repeat colonoscopy in patients referred for surgical resection of colon polyps without biopsy-proven cancer.
  
  
  METHODS
  Retrospective review.
  
  
  METHODS
  University hospital.
  
  
  METHODS
  Patients referred to a colorectal surgeon for surgical resection of a polyp without biopsy-proven cancer.
  
  
  METHODS
  Repeat colonoscopy.
  
  
  METHODS
  The rate of successful endoscopic treatment.
  
  
  RESULTS
  There were 38 lesions in 36 patients; 71% of the lesions were noncancerous and were successfully treated endoscopically. In 26% of the lesions, previous removal was attempted by the referring physician but was unsuccessful. The adenoma recurrence rate was 50%, but all recurrences were treated endoscopically and none were cancerous. Two patients were admitted for overnight observation. There were no major adverse events.
  
  
  CONCLUSIONS
  Single center, retrospective.
  
  
  CONCLUSIONS
  In the absence of biopsy-proven invasive cancer, it is appropriate to reevaluate patients referred for surgical resection by repeat colonoscopy at an expert center.
authors.affiliation: Department of Gastroenterology, Stanford University School of Medicine, Stanford, California, USA; VA Palo Alto Health Care System, Palo Alto, California, USA.
authors.forename: Shai
authors.initials: S
authors.lastname: Friedland
authors.affiliation: Department of Gastroenterology, Stanford University School of Medicine, Stanford, California, USA.
authors.forename: Subhas
authors.initials: S
authors.lastname: Banerjee
authors.affiliation: Department of Gastroenterology, Stanford University School of Medicine, Stanford, California, USA.
authors.forename: Rajan
authors.initials: R
authors.lastname: Kochar
authors.affiliation: Department of Gastroenterology, Stanford University School of Medicine, Stanford, California, USA.
authors.forename: Ann
authors.initials: A
authors.lastname: Chen
authors.affiliation: Department of Surgery, Stanford University School of Medicine, Stanford, California, USA.
authors.forename: Andrew
authors.initials: A
authors.lastname: Shelton
mesh_terms: D018253:Adenoma, Villous / Q000473:pathology* / Q000601:surgery; D000368:Aged; D001706:Biopsy; D003106:Colon / Q000473:pathology*; D003110:Colonic Neoplasms / Q000473:pathology* / Q000601:surgery; D003111:Colonic Polyps / Q000473:pathology* / Q000601:surgery; D003113:Colonoscopy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000473:pathology; D012004:Rectal Neoplasms / Q000473:pathology* / Q000601:surgery; D012017:Referral and Consultation; D012086:Reoperation; D012189:Retrospective Studies; D062606:Tertiary Care Centers; D016896:Treatment Outcome
keywords: APC; ESD; HGD; argon plasma coagulation; endoscopic submucosal dissection; high-grade dysplasia