title: A new sinker-assisted endoscopic submucosal dissection for colorectal cancer.
abstract: BACKGROUND
  Endoscopic submucosal dissection (ESD) is accepted as a minimally invasive treatment for early gastric cancer, but it is not widely used to treat the colorectum because of its degree of technical difficulty. Thus, a noninvasive tool that facilitates the direct visualization of the submucosal layer is needed.
  
  
  METHODS
  Traction-assisted dissection was performed on 4 superficial lesions. The system consisted of a metallic clip attached by a nylon line to a sinker 6 x 4 x 4 mm in size and weighing 1 g. After partially dissecting the submucosa, the clip was attached to the edge of the exfoliated mucosa and the weight of the sinker pulled down the partly resected lesion.
  
  
  METHODS
  In all 4 cases, the sinker allowed direct visualization of the cutting line, and en bloc resection was successfully accomplished.
  
  
  CONCLUSIONS
  These preliminary results suggest that sinker-assisted ESD is effective for the complete removal of selected superficial early colorectal cancer.
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Saito
authors.forename: Fabian
authors.initials: F
authors.lastname: Emura
authors.forename: Takahisa
authors.initials: T
authors.lastname: Matsuda
authors.forename: Toshio
authors.initials: T
authors.lastname: Uraoka
authors.forename: Takeshi
authors.initials: T
authors.lastname: Nakajima
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Ikematsu
authors.forename: Takuji
authors.initials: T
authors.lastname: Gotoda
authors.forename: Daizo
authors.initials: D
authors.lastname: Saito
authors.forename: Takahiro
authors.initials: T
authors.lastname: Fujii
mesh_terms: D000368:Aged; D003113:Colonoscopy / Q000379:methods*; D015179:Colorectal Neoplasms / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged