title: Short term results of endoscopic submucosal dissection in superficial esophageal squamous cell neoplasms.
abstract: OBJECTIVE
  To evaluate the efficacy of endoscopic submucosal dissection for superficial esophageal squamous cell neoplasms.
  
  
  METHODS
  Between July 2007 and March 2009, 27 consecutive superficial esophageal squamous cell neoplasms in 25 enrolled patients were treated by endoscopic submucosal dissection. The therapeutic efficacy, complications, and follow-up results were assessed.
  
  
  RESULTS
  The mean size of the lesions was 21 ± 13 mm (range 2-55 mm); the mean size of the resection specimens was 32 ± 12 mm (range 10-70 mm). The en block resection rate was 100% (27/27), and en block resection with tumor-free lateral/basal margins was 88.9% (24/27). Perforation occurred in 1 patient who was managed by conservative medical treatments. None of the patients developed local recurrence or distant metastasis in the follow-up period.
  
  
  CONCLUSIONS
  Endoscopic submucosal dissection is applicable to superficial esophageal squamous cell neoplasms with promising results.
authors.affiliation: Kouichi Nonaka, Shin Arai, Keiko Ishikawa, Masamitsu Nakao, Yousuke Nakai, Osamu Togawa, Hiroto Kita, Department of Gastroenterology, Saitama Medical University International Medical Center, Saitama 350-1298, Japan.
authors.forename: Kouichi
authors.initials: K
authors.lastname: Nonaka
authors.forename: Shin
authors.initials: S
authors.lastname: Arai
authors.forename: Keiko
authors.initials: K
authors.lastname: Ishikawa
authors.forename: Masamitsu
authors.initials: M
authors.lastname: Nakao
authors.forename: Yousuke
authors.initials: Y
authors.lastname: Nakai
authors.forename: Osamu
authors.initials: O
authors.lastname: Togawa
authors.forename: Koji
authors.initials: K
authors.lastname: Nagata
authors.forename: Michio
authors.initials: M
authors.lastname: Shimizu
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Sasaki
authors.forename: Hiroto
authors.initials: H
authors.lastname: Kita