Evidence map›Paper›PMID 41783444›Full record

ArticleFrontiers in oncology2026

Comparative analysis of oncologic outcomes: kidney-sparing surgery versus radical nephroureterectomy for localized high-risk upper tract urothelial carcinoma.

Hongyu Zhang, Qi Tan, Yutao He, Tong Zhang, Yunfeng He

Abstract read
In one paragraph

Article in Frontiers in oncology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Hongyu Zhang *Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
Qi Tan *Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
Yutao HeDepartment of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
Tong ZhangDepartment of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
Yunfeng HeDepartment of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: The kidney-sparing surgery (KSS) technique for upper tract urothelial carcinoma (UTUC) shows potential, yet its efficacy in treating high-risk UTUC is a topic of debate. This study seeks to assess and compare the impact of KSS versus radical nephroureterectomy (RNU) on renal function and long-term oncological outcomes in patients with localized high-risk UTUC. Methods: This study retrospectively analyzed 115 patients diagnosed with high-risk UTUC and treated with KSS or RNU in the First Affiliated Hospital of Chongqing Medical University from January 2018 to June 2024. The primary endpoint of this study was overall survival (OS). Secondary endpoints included disease-free survival (DFS), metastasis-free survival (MFS), intravesical recurrence-free survival (IVRFS), and postoperative renal function changes. Additionally, predictors of OS, DFS, MFS, and IVRFS were evaluated through Cox regression models. Results: There were no significant differences in the 3-year OS (88.1% vs 78.5%), DFS (60.3% vs 53.9%), MFS (82.1% vs 71.9%), and IVRFS (80.2% vs 69.3%) rates between the KSS and RNU groups, which included 29 and 86 patients, respectively. 6 months after intervention, renal function decreased significantly in RNU group, but not in KSS group. In univariate Cox regression analysis, the surgical procedure did not exhibit significant associations with OS, DFS, MFS, or IVRFS. Subsequent multivariable Cox regression analysis revealed that preoperative creatinine levels, pathological stage, and intraoperative bleeding emerged as independent predictors of OS. Moreover, pathological stage was also an independent predictor for DFS and MFS. Conclusions: KSS exhibits similar oncological efficacy as RNU in managing localized high-risk UTUC, with less damage to patients and benefit of better preservation of renal function. Adverse factors such as elevated preoperative creatinine levels, advanced pathological stage, and increased intraoperative blood loss may correlate with inferior overall survival. Additional prospective research is necessary to confirm the validity of our findings.

Indexed as

kidney-sparing surgeryradical nephroureterectomyrenal functionsurvivalupper tract urothelial carcinoma

Identifiers

PMID41783444
PMCPMC12953131

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.