title: [Follow-up results of endoscopic mucosal resection for early colorectal cancer].
abstract: OBJECTIVE
  Recently colonoscopy and screening programs have led to the detection and removal of increasing numbers of early colorectal cancer (ECC), which can reduce its related mortality. We analysed the clinical, endoscopic, and histologic findings, as well as the follow-up data, to evaluate the effectiveness and the long-term results of endoscopic mucosal resection (EMR) for ECC.
  
  
  METHODS
  We analysed, retrospectively, 94 lesions in 92 patients who underwent EMR for ECC from January 2002 to June 2009.
  
  
  RESULTS
  The overage age of patients was 60 years old. The mean follow-up period was 22.1 months (6-80). En bloc resection rate was 64.9%. Submucosal invasion was found in 30 cases (31.9%). De novo cancer rate was 26.6% which had higher submucosal invasion rate (60%, p=0.003). The complete resection rate was 87.2%, and there was no recurrence of cancer during follow-up (p=0.000). Twelve incomplete resection cases had received further surgical treatments. No procedure-related mortality was found and no recurrent malignancy was found except 1 case.
  
  
  CONCLUSIONS
  This study shows that EMR is an effective and safe treatment for ECC. En bloc resection provides precise histologic information and prevention of tumor recurrence.
authors.affiliation: Department of Internal Medicine, Chungnam National Univertisity College of Medicine, Daejeon, Korea.
authors.forename: Hee Jung
authors.initials: HJ
authors.lastname: Lee
authors.forename: Hyun Yong
authors.initials: HY
authors.lastname: Jeong
authors.forename: Nam Hwan
authors.initials: NH
authors.lastname: Park
authors.forename: Sun Chang
authors.initials: SC
authors.lastname: Hong
authors.forename: Gwan Woo
authors.initials: GW
authors.lastname: Nam
authors.forename: Hee Seok
authors.initials: HS
authors.lastname: Moon
authors.forename: Eaum Seok
authors.initials: ES
authors.lastname: Lee
authors.forename: Seok Hyun
authors.initials: SH
authors.lastname: Kim
authors.forename: Jae Kyu
authors.initials: JK
authors.lastname: Sung
authors.forename: Byung Seok
authors.initials: BS
authors.lastname: Lee
mesh_terms: D000236:Adenoma / Q000473:pathology / Q000601:surgery; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015179:Colorectal Neoplasms / Q000453:epidemiology* / Q000473:pathology / Q000601:surgery; D016099:Endoscopy, Gastrointestinal; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007413:Intestinal Mucosa / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D012008:Recurrence; D012189:Retrospective Studies