title: A new method for intraluminal gastrointestinal stromal tumor resection using laparoscopic seromuscular dissection technique.
abstract: BACKGROUND
  It is difficult to confirm the location of an intraluminal gastrointestinal stromal tumor (GIST) and to laparoscopically determine the appropriate resection line. We report a new technique for the resection of GISTs using the laparoscopic seromuscular dissection (LSD) technique, which can be preformed regardless of the tumor location.
  
  
  METHODS
  Since 2009, 5 patients have undergone LSD technique for the resection of an intraluminal GIST. The tumor location was confirmed endoscopically, and the exact resection line was marked laparoscopically. After 10% glycerin was injected into the submucosal layer, LSD was performed circumferentially. The tumor was exteriorized into the abdominal cavity and dissected using a linear stapling device.
  
  
  RESULTS
  The average operation time for this procedure was 134.4 ± 18.6 min, and the mean estimated blood loss was 10 ± 8.9 ml. None of the 5 cases required open surgery. There was no tumor rupture or disruption or any other perioperative complications using this technique.
  
  
  CONCLUSIONS
  We conclude that the LSD technique may be a safe and minimally invasive method for the resection of intraluminal GISTs, regardless of the tumor location.
authors.affiliation: Department of Surgery, Division of Frontier Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan. ktanabe2@hiroshima-u.ac.jp
authors.forename: Kazuaki
authors.initials: K
authors.lastname: Tanabe
authors.forename: Yuji
authors.initials: Y
authors.lastname: Urabe
authors.forename: Noriaki
authors.initials: N
authors.lastname: Tokumoto
authors.forename: Takahisa
authors.initials: T
authors.lastname: Suzuki
authors.forename: Hideki
authors.initials: H
authors.lastname: Yamamoto
authors.forename: Shiro
authors.initials: S
authors.lastname: Oka
authors.forename: Shinji
authors.initials: S
authors.lastname: Tanaka
authors.forename: Hideki
authors.initials: H
authors.lastname: Ohdan
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D004210:Dissection / Q000379:methods*; D005260:Female; D046152:Gastrointestinal Stromal Tumors / Q000601:surgery*; D006801:Humans; D010535:Laparoscopy / Q000379:methods*; D008297:Male; D008875:Middle Aged