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. 2020 Aug;52(8):1465-1469.
doi: 10.1007/s11255-020-02439-5. Epub 2020 Mar 11.

Importance of long-term follow-up after endoscopic management for upper tract urothelial carcinoma and factors leading to surgical management

Anand Mohapatra  1 , Seth A Strope  2 , Nick Liu  3 , Andrew Winer  4 , Nicole E Benfante  5 , Jonathan A Coleman  5   6 , Joel Vetter  2 , Katie S Murray  7
Affiliations

Importance of long-term follow-up after endoscopic management for upper tract urothelial carcinoma and factors leading to surgical management

Anand Mohapatra et al. Int Urol Nephrol. 2020 Aug.

Abstract

Purpose: Patients undergoing endoscopic management for upper tract urothelial carcinoma often progress to definitive therapy with radical nephroureterectomy. This study examined the rate of progression as well as risk factors for transitions in treatment over time.

Methods: Retrospective review at two institutions identified patients undergoing endoscopic management for upper tract urothelial carcinoma. Patients were assessed for progression to radical nephroureterectomy. Baseline characteristics were compared using Chi square analysis. Kaplan-Meier method analyzed the probability of patients not progressing to radical nephroureterectomy. Cox proportional hazards identified factors associated with progression to radical nephroureterectomy.

Results: Eighty-one patients had endoscopic management alone and 89 progressed to radical nephroureterectomy. The two groups had similar age, histories of bladder cancer, and Charlson comorbidity index. Positive urinary cytology, ureteroscopic visualization, and biopsy grade were higher in those progressing to RNU (p < 0.001). Hazard modeling demonstrated higher rates of progression to radical nephroureterectomy with positive biopsy (HR 11.8, 95% CI 2.4-59.5, p = 0.003) or visible lesion on ureteroscopy (HR 8.4, 95% CI 3.0-23.9, p < 0.001). Patients with a higher Charlson comorbidity index were less likely to have radical nephroureterectomy. On Kaplan-Meier modeling, the probability of not undergoing radical nephroureterectomy at 2 years and 5 years was 50% and 20%, respectively.

Conclusions: Patients who progress to radical nephroureterectomy after endoscopic management have fewer comorbid conditions and changes in disease status including visible lesions on ureteroscopy and positive biopsies. The high rate of progression to radical nephroureterectomy reinforces the need for long-term follow-up of these patients.

Keywords: Disease progression; Endoscopy; Ureteral neoplasms; Urothelial carcinoma.

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Figures

Fig. 1
Fig. 1
Kaplan Meier probability of not progressing to RNU after EM for UTUC. The dashed lines correspond to 95% confidence intervals
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