Conditional survival and associated prognostic factors in patients with upper tract urothelial carcinoma after radical nephroureterectomy: A retrospective study at a single institution

Minyong Kang, Hyung Suk Kim, Chang Wook Jeong, Cheol Kwak, Hyeon Hoe Kim, Ja Hyeon Ku

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Purpose The purpose of this study is to evaluate the changes of conditional survival (CS) probabilities and to identify the prognostic parameters that significantly affect CS over time post-surgery in upper tract urothelial carcinoma (UTUC) patients. Materials and Methods A total of 330 patients were examined in the final analysis. Primary end point was conditional cancer-specific survival (CSS), overall survival (OS), and intravesical recurrence-free survival (IVRFS) after surgery. The Kaplan-Meier method was used for calculation of CS. Cox regression hazard ratio model was used to determine the predictors of CS. Results UTUC patients who had already survived 5 years after radical nephroureterectomy had a more favorable CS probability in all given survivorships compared to those with shorter survival times. Patients with unfavorable pathologic features showed a higher increment of 5-year conditional CSS and OS compared to their counterparts. For 5-year conditional CSS, several factors, including high-grade tumor, lymphovascular invasion, and tumor location showed significant association with risk elevation over time. Only age remained as a predictor of 5-year conditional OS with increased risk in all given survivorships. For 5-year IVRFS, no variables remained as significant predictive factors over time after surgery. Conclusion Our study provides valuable information for practical survival estimation and relevant prognostic factors for patients with UTUC after surgery.

Original languageEnglish
Pages (from-to)621-631
Number of pages11
JournalCancer Research and Treatment
Volume48
Issue number2
DOIs
StatePublished - 1 Apr 2016

Keywords

  • Conditional variables
  • Survival
  • Transitional cell carcinoma
  • Urinary tract
  • Urologic surgical procedures

Fingerprint

Dive into the research topics of 'Conditional survival and associated prognostic factors in patients with upper tract urothelial carcinoma after radical nephroureterectomy: A retrospective study at a single institution'. Together they form a unique fingerprint.

Cite this