title: Twin-endoscope scissors resection (T-ESR): a new minimally invasive technique for performing colonic mucosectomy.
abstract: BACKGROUND
  Piecemeal resection is currently the safest method for the endoscopic removal of large sessile colonic polyps. However, this method has its limitations, including the quality of the specimen received for histopathology and the need for early follow-up due to the possibility of incomplete resection and recurrence. New methods enabling en bloc resection would be advantageous in these respects.
  
  
  METHODS
  We developed a new technique that uses endoscopic scissors and two endoscopes to perform mucosal resection in a porcine model. So far, the technique has been evaluated in two animals.
  
  
  RESULTS
  The resection of intact mucosal specimens measuring 1.5 x 1 cm and 2.2 x 3.5 cm was achieved, with no procedural or late hemorrhage and no clinical or radiological evidence of perforation.
  
  
  CONCLUSIONS
  After further development and evaluation, this technique should be suitable for the resection of large sessile colonic polyps in humans.
authors.affiliation: Wolfson Unit for Endoscopy, St. Mark's Hospital, Northwick Park, London HA1 3UJ, England.
authors.forename: J C
authors.initials: JC
authors.lastname: Brooker
authors.forename: B P
authors.initials: BP
authors.lastname: Saunders
authors.forename: N
authors.initials: N
authors.lastname: Suzuki
authors.forename: P
authors.initials: P
authors.lastname: Sibbons
mesh_terms: D000818:Animals; D003111:Colonic Polyps / Q000601:surgery; D003113:Colonoscopy / Q000379:methods* / Q000639:trends*; D004195:Disease Models, Animal; D004724:Endoscopy / Q000379:methods* / Q000639:trends*; D005260:Female; D007413:Intestinal Mucosa / Q000601:surgery*; D019060:Minimally Invasive Surgical Procedures / Q000379:methods / Q000639:trends*; D013525:Surgical Instruments; D013552:Swine