Single vs. Maintenance Intravesical Chemotherapy Outcomes for Distal Ureteral Carcinoma

532 patient records from a multicenter retrospective study in China (2018-2023) compare single versus maintenance intravesical chemotherapy for preventing bladder recurrence after surgery for upper tract urothelial carcinoma. The study, authored by Shengnian Dai, used inverse probability of treatment weighting and Cox regression to analyze intravesical recurrence-free survival. Results suggest maintenance therapy is associated with a lower risk of recurrence, though the authors note the findings are hypothesis-generating.

Use Cases

• Compare recurrence-free survival outcomes between single and maintenance intravesical chemotherapy regimens based on the primary endpoint.
• Identify independent predictors of intravesical recurrence based on tumor size, multifocality, and lymphovascular invasion mentioned in the results.
• Assess the application of inverse probability of treatment weighting (IPTW) for balancing baseline characteristics in a retrospective cohort study.
• Investigate treatment heterogeneity and outcomes specifically for pT2 distal ureteral tumors, a clinically distinct subgroup.

Strengths

• Includes data from 532 patients across multiple centers, providing a substantial clinical cohort.
• Focuses on a specific, clinically relevant patient subgroup (pT2 distal ureteral tumors) to reduce heterogeneity.
• Employs advanced statistical methods like inverse probability of treatment weighting (IPTW) and Cox regression for analysis.

Limitations

• The retrospective, non-randomized study design introduces potential for residual confounding, as noted by the authors.
• Row count and column-level documentation are unknown, limiting detailed assessment of data structure and variables.
• Heterogeneity in maintenance regimens across participating centers may affect generalizability of the findings.

Provenance

Source

figshare, authored by Shengnian Dai.

Collection Method

Retrospective analysis of patient records from multiple medical centers.

Time Range

2018 to 2023

Freshness

Last updated 2026-05-19 04:20:59.

Geography

China