Evidence map›Paper›PMID 40954406›Full record

ArticleWorld journal of urology2025

Initial clinical experience with 6.3 Fr single‑use flexible ureteroscope versus 8.5 Fr in retrograde intrarenal surgery with flexible and navigable suction ureteral access sheath of variable diameters: a single‑center comparative study.

Dongfeng Yuan, Yang Xun, Steffi Kar Kei Yuen, Junyi Yang, Yirixiatijiang Amier, Wenlong Wan, Yongqi Wang, Weimin Yao, Xiao Yu

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in World journal of urology, 2025. 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
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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

9 authors.

Dongfeng Yuan *Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Liberalization Ave, No. 1095, Wuhan, 430030, China.
Yang Xun *Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Liberalization Ave, No. 1095, Wuhan, 430030, China.
Steffi Kar Kei Yuen *Department of Surgery, S.H. Ho Urology Centre, The Chinese University of Hong Kong, Hong Kong, China.
Junyi YangDepartment of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Liberalization Ave, No. 1095, Wuhan, 430030, China.
Yirixiatijiang AmierDepartment of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Liberalization Ave, No. 1095, Wuhan, 430030, China.
Wenlong WanDepartment of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Liberalization Ave, No. 1095, Wuhan, 430030, China.
Yongqi WangDepartment of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Liberalization Ave, No. 1095, Wuhan, 430030, China.
Weimin YaoDepartment of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Liberalization Ave, No. 1095, Wuhan, 430030, China. yaoweimin1985@hust.edu.cn.
Xiao YuDepartment of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Liberalization Ave, No. 1095, Wuhan, 430030, China. yujiuhu@163.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study combined flexible and navigable suction ureteral access sheaths (FANS) to compare the efficacy and safety of the newly emerged 6.3Fr flexible ureteroscope (fURS) and 8.5Fr f-URS in the treatment of kidney stones.

methodsThis is a single-center retrospective study aimed at comparing the safety and efficacy of 67 patients who received 6.3Fr or 8.5Fr fURS for upper urinary tract stone management. The two groups were respectively the 6.3Fr group (n = 19) and the 8.5Fr group (n = 48). The primary outcomes were the immediate and one-month stone-free rates (SFR). Secondary outcome included operation time and complications.

resultsBaseline characteristics between two groups were similar. No significant difference was noted in immediate SFR (89.5% vs. 83.3%, p = 0.798) and one-month SFR (89.5% vs. 85.4%%, p = 0.967). 3 cases in 6.3Fr group and 7 cases in 8.5Fr group resulted in failure of 12/14Fr FANS insertion, respectively. In cases where a 12/14Fr FANS could not be inserted, the 11/13Fr and 10/12Fr FANS would be attempted. 10/12Fr FANS inserting rate in 6.3Fr group was higher than in 8.5Fr group (100% vs. 0%, p = 0.036). Operation time in 6.3Fr group was significantly shorter than 8.5Fr group (36.32 ± 19.23 min vs. 48.48 ± 16.34 min, p = 0.011). No severe complications were observed in either group, with only one case of postoperative fever in 8.5 Fr group.

conclusionsRIRS with 6.3Fr fURS yielded comparable SFR compared to those with 8.5Fr fURS and the 6.3Fr group demonstrated shorter operation time, with low complications.

Indexed as

Kidney CalculiUreteral CalculiUreteroscopesUreteroscopyEquipment DesignFemaleHumansMaleMiddle AgedOperative TimeRetrospective StudiesSuctionTreatment OutcomeFlexible ureteroscopeRetrograde intrarenal surgeryStone-free rateUpper urinary tract calculiUreteral access sheath

Identifiers

PMID40954406

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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.