title: [Risk factors for tumor recurrence after curative resection in patients with Stage IIIa colon and rectosigmoid cancer].
abstract: OBJECTIVE
  The aim of this study was to elucidate the risk factors for recurrence of Stage IIIa colon and rectosigmoid cancer.
  
  
  METHODS
  The subjects were 93 patients with Stage IIIa colon and rectosigmoid cancer who underwent radical colectomy in this department between 2001 and 2011. Various risk factors for recurrence were examined.
  
  
  RESULTS
  The overall recurrence rate was 18% (17/93 cases). Univariate analysis identified a risk factor for recurrence: depth of tumor invasion( ≥serosa exposed[ SE])(hazard ratio[ HR] 10.04, 95% confidence interva[l CI] 3.26-30.89, p<0.0001). The rate of 1, 2, and 3-year relapse-free survival of patients with respect to the depth of tumor invasion( ≥SE) were 76%, 61%, and 56%, respectively.
  
  
  CONCLUSIONS
  Tumor depth SE or serosa infiltrating( SI) was a risk factor for the recurrence of Stage IIIa colon and rectosigmoid cancer.
authors.affiliation: Dept. of Surgery, Sasebo Chuo Hospital.
authors.forename: Yu
authors.initials: Y
authors.lastname: Shigemasa
authors.forename: Shousaburo
authors.initials: S
authors.lastname: Oyama
authors.forename: Yasumasa
authors.initials: Y
authors.lastname: Hashimoto
authors.forename: Takafumi
authors.initials: T
authors.lastname: Kusaba
authors.forename: Keiji
authors.initials: K
authors.lastname: Kajihara
authors.forename: Nobufumi
authors.initials: N
authors.lastname: Sasaki
authors.forename: Hideki
authors.initials: H
authors.lastname: Ikari
authors.forename: Tadaomi
authors.initials: T
authors.lastname: Kunizaki
authors.forename: Nobuhisa
authors.initials: N
authors.lastname: Yonemitsu
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003082:Colectomy; D003110:Colonic Neoplasms / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D009367:Neoplasm Staging; D011379:Prognosis; D012008:Recurrence; D012307:Risk Factors; D012811:Sigmoid Neoplasms / Q000473:pathology* / Q000601:surgery