title: EMR for early gastric cancer in Korea: a multicenter retrospective study.
abstract: BACKGROUND
  EMR has been accepted as a treatment modality for selected cases of early gastric cancer (EGC) in Japan. However, long-term outcomes after EMR for EGC have not been fully documented.
  
  
  OBJECTIVE
  We reviewed the experiences of EMR for EGC in Korea, with emphasis on the long-term outcome.
  
  
  METHODS
  Multicenter, retrospective study.
  
  
  METHODS
  Data were collected retrospectively by use of the on-line database registry system. From January 2000 to December 2002, 514 EGCs in 506 patients were treated by EMR in 13 institutions in Korea. Median age of the patients was 60 years (range 45-83 years). The resection was regarded as incomplete if histopathologic examination revealed a positive resection margin or submucosal invasion or positive lymphovascular invasion or undifferentiated histologic diagnosis.
  
  
  RESULTS
  The most commonly used technique was circumferential precutting followed by snare resection (EMR-P, n = 269, 52.3%). Complete resection and incomplete resection after EMR were confirmed in 399 lesions (77.6%) and 103 lesions (20.0%), respectively. For completely resected mucosal cancers (n = 399), the median duration of follow-up was 23.5 months (range 5-70 months). In this group, local recurrence was detected in 24 cases (6.0%) with a median interval between EMR and recurrence of 17.9 months (range 3.5-51.7 months). There were 3 cases with perforation and 71 cases with bleeding. No deaths were related to recurrence of gastric cancer during the overall median follow-up period of 39 months.
  
  
  CONCLUSIONS
  Multicenter retrospective design, no controls.
  
  
  CONCLUSIONS
  EMR is an effective therapeutic modality for selected cases of EGC in Korea.
authors: Department of Medicine, Sungkyunkwan University School of Medicine, Seoul, Korea.
authors: Jae J
authors: JJ
authors: Kim
authors: Jun Haeng
authors: JH
authors: Lee
authors: Hwoon-Yong
authors: HY
authors: Jung
authors: Gin Hyug
authors: GH
authors: Lee
authors: Joo Yong
authors: JY
authors: Cho
authors: Chang Beom
authors: CB
authors: Ryu
authors: Hoon Jai
authors: HJ
authors: Chun
authors: Jong Jae
authors: JJ
authors: Park
authors: Wan Sik
authors: WS
authors: Lee
authors: Hyun Soo
authors: HS
authors: Kim
authors: Moon Gi
authors: MG
authors: Chung
authors: Jeong Seop
authors: JS
authors: Moon
authors: Seok Reyol
authors: SR
authors: Choi
authors: Geun Am
authors: GA
authors: Song
authors: Hyun Yong
authors: HY
authors: Jeong
authors: Sam Ryong
authors: SR
authors: Jee
authors: Sang Yong
authors: SY
authors: Seol
authors: Yong Bum
authors: YB
authors: Yoon
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D016099:Endoscopy, Gastrointestinal / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D005743:Gastrectomy / Q000379:methods*; D005753:Gastric Mucosa / Q000473:pathology / Q000601:surgery*; D006801:Humans; D015994:Incidence; D007723:Korea / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000453:epidemiology; D009367:Neoplasm Staging / Q000379:methods; D012189:Retrospective Studies; D013274:Stomach Neoplasms / Q000453:epidemiology / Q000473:pathology / Q000601:surgery*; D013997:Time Factors; D016896:Treatment Outcome