title: [Risk factors of postoperative intravesical recurrence of transitional cell carcinoma of the ureter].
abstract: OBJECTIVE
  To define the clinicopathological risk factors of intravesical recurrence of primary transitional cell carcinoma of the ureter after surgical intervention.
  
  
  METHODS
  Patients with primary carcinoma of the ureter treated between January 2000 and December 2010 were retrospectively analyzed. The intravesical recurrence-free survival rate was calculated using Kaplan-Meier method. Multivariate analysis was conducted with Cox's regression.
  
  
  RESULTS
  A total of 104 patients were enrolled, who were followed up for a median of 46 months (13-89 months). Thirty-nine of the patients showed postoperative intravesical recurrence. Urine exfoliative cytology (P=0.000), number of tumors (P=0.006), tumor grade (P=0.039) and co-existence of bladder tumor (P=0.014) were found to independently influence the postoperative intravesical recurrence. Patients with more risk factors had poorer intravesical recurrence-free survival.
  
  
  CONCLUSIONS
  Urine exfoliative cytology, number of tumors, tumor grade and co-existence of bladder tumor are independent risk factors for postoperative intravesical recurrence of primary transitional cell carcinoma of the ureter. Close follow-up and rigorous treatment are essential for patients with high risk factors.
authors.affiliation: Department of Urology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China. yeyunlin2000@yahoo.com.cn
authors.forename: Yunlin
authors.initials: Y
authors.lastname: Ye
authors.forename: Zike
authors.initials: Z
authors.lastname: Qin
authors.forename: Jun
authors.initials: J
authors.lastname: Bian
authors.forename: Mingkun
authors.initials: M
authors.lastname: Chen
authors.forename: Yanping
authors.initials: Y
authors.lastname: Huang
authors.forename: Xiaoxu
authors.initials: X
authors.lastname: Yuan
authors.forename: Xiangzhou
authors.initials: X
authors.lastname: Sun
authors.forename: Yuping
authors.initials: Y
authors.lastname: Dai
mesh_terms: D000328:Adult; D000368:Aged; D002295:Carcinoma, Transitional Cell / Q000473:pathology* / Q000601:surgery; D015984:Causality; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local; D012044:Regression Analysis; D012189:Retrospective Studies; D012307:Risk Factors; D014516:Ureteral Neoplasms / Q000473:pathology* / Q000601:surgery; D001749:Urinary Bladder Neoplasms / Q000473:pathology*