title: Laparoscopic surgery for submucosal tumors located at the esophagogastric junction and the prepylorus.
abstract: BACKGROUND
  Laparoscopic partial gastric resection is widely accepted as a treatment for gastric submucosal tumors (SMTs). However, SMTs of either end of the stomach are generally managed by subtotal gastrectomies or total gastrectomies. This study was conducted to evaluate surgical techniques for management of SMTs located at the ends of the stomach.
  
  
  METHODS
  Among 63 patients who were diagnosed and underwent laparoscopic surgery for gastric SMTs at Seoul National University Bundang Hospital from May 2003 to May 2007, 11 SMTs located at the ends of the stomach were identified. The clinicopathologic results of these 11 SMTs were analyzed.
  
  
  RESULTS
  Laparoscopic partial wedge resections or tumor excisions were successfully performed on all patients except for those who had prepyloric tumors. Six men and five women had SMTs at the ends of the stomach. The patients ranged in age from 21-63 years (mean 43.4 +/- 13.5 years). Of six esophagogastric junctional tumors that showed low, homogeneous contrast enhancement on computed tomography (CT) scans, five were treated by laparoscopic transgastric enucleation and one by tumor-everting resection. One esophagogastric junctional tumor that leaned toward the fundus and showed a 6-cm-diameter endophytic mass with heterogeneous enhancement on CT scan was resected by laparoscopic wedge resection. The mean operation time was 100 min (range 60-210 min). Three laparoscopy-assisted distal gastrectomies and one laparoscopic wedge resection were performed on SMTs located near the prepyloric antrum. There were no intra- or postoperative complications. Duration of postoperative hospital stay ranged from 4-7 days.
  
  
  CONCLUSIONS
  Laparoscopic local resection is an effective treatment for SMTs located at the esophagogastric junction and can be used instead of a total or proximal gastrectomy. However, gastrectomies should be considered for SMTs located near the pylorus because of the small volume of the lower third of the stomach.
authors.affiliation: Department of Surgery, Seoul National University Bundang Hospital, 300 Gumi-dong, Bundang-gu, Seongnam-si, Gyeonggi, Korea.
authors.forename: Sun-Hwi
authors.initials: SH
authors.lastname: Hwang
authors.forename: Do Joong
authors.initials: DJ
authors.lastname: Park
authors.forename: Young Hoon
authors.initials: YH
authors.lastname: Kim
authors.forename: Kyoung Ho
authors.initials: KH
authors.lastname: Lee
authors.forename: Hye Seung
authors.initials: HS
authors.lastname: Lee
authors.forename: Hyung-Ho
authors.initials: HH
authors.lastname: Kim
authors.forename: Hyuk-Joon
authors.initials: HJ
authors.lastname: Lee
authors.forename: Han-Kwang
authors.initials: HK
authors.lastname: Yang
authors.forename: Kuhn Uk
authors.initials: KU
authors.lastname: Lee
mesh_terms: D000328:Adult; D002828:Choristoma / Q000601:surgery; D004943:Esophagogastric Junction / Q000601:surgery*; D005240:Feasibility Studies; D005260:Female; D005500:Follow-Up Studies; D005743:Gastrectomy / Q000379:methods*; D005753:Gastric Mucosa / Q000601:surgery; D046152:Gastrointestinal Stromal Tumors / Q000601:surgery*; D006801:Humans; D010535:Laparoscopy / Q000379:methods*; D007889:Leiomyoma / Q000601:surgery; D008297:Male; D008875:Middle Aged; D010179:Pancreas; D011708:Pylorus / Q000601:surgery*; D012189:Retrospective Studies; D013274:Stomach Neoplasms / Q000601:surgery*; D016896:Treatment Outcome; D055815:Young Adult