title: New endoscopic treatment for intramucosal gastric tumors using an insulated-tip diathermic knife.
abstract: OBJECTIVE
  For one-piece resection the conventional technique of endoscopic mucosal resection (EMR) is limited to gastric mucosal tumors of 10 mm or less in size. In this retrospective study, we investigated the efficacy and complications associated with a new EMR method, using an insulated-tip diathermic knife (IT-EMR).
  
  
  METHODS
  In a total of 41 patients gastric mucosal tumors were resected using IT-EMR.
  
  
  RESULTS
  One-piece resection rates were 82% (14/17) for lesions of 10 mm or less, 75% (12/16) for those between 11 and 20 mm, and 14% (1/7) for those of over 20 mm. Complication rates for severe bleeding and perforation were 22% and 5%, respectively. With a median follow-up period of 32 months, no recurrence was observed after these procedures.
  
  
  CONCLUSIONS
  Compared with conventional EMR, this new method may have significant benefits, particularly regarding one-piece resection of lesions between 11 and 20 mm in size, and may also have a lower recurrence rate.
authors: Division of Digestive Endoscopy and Gastrointestinal Oncology, National Cancer Center Hospital East, Chiba, Japan.
authors: M
authors: M
authors: Ohkuwa
authors: K
authors: K
authors: Hosokawa
authors: N
authors: N
authors: Boku
authors: A
authors: A
authors: Ohtu
authors: H
authors: H
authors: Tajiri
authors: S
authors: S
authors: Yoshida
mesh_terms: D000230:Adenocarcinoma / Q000601:surgery; D000236:Adenoma / Q000601:surgery; D004564:Electrocoagulation / Q000009:adverse effects / Q000295:instrumentation*; D005753:Gastric Mucosa / Q000601:surgery*; D005773:Gastroscopy; D006801:Humans; D009364:Neoplasm Recurrence, Local; D012189:Retrospective Studies; D013274:Stomach Neoplasms / Q000601:surgery*; D013525:Surgical Instruments