Evidence map›Paper›PMID 40978093›Full record

ArticleAmerican journal of clinical and experimental urology2025

Retrograde intrarenal surgery combined with flexible vacuum-assisted ureteral access sheath versus traditional ureteral access sheath for 1-2 cm lower calyceal renal stones: a prospective, randomized controlled study.

Yi-Qing Liu, Yue Li, Ji-Dong Guo, Meng-Jun Dai, Qing-Lai Tang, Xing-Zhu Zhou, Rong-Zhen Tao

Abstract read
In one paragraph

Article in American journal of clinical and experimental urology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Review
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

7 authors.

Yi-Qing LiuDepartment of Urology, Guanyun People's Hospital Guanyun, Jiangsu, China.
Yue LiDepartment of Anesthesiology, Lianyungang Hospital of Traditional Chinese Medicine Lianyungang, Jiangsu, China.
Ji-Dong GuoDepartment of Anesthesiology, The Affiliated Jiangning Hospital of Nanjing Medical University Nanjing, Jiangsu, China.
Meng-Jun DaiDepartment of Anesthesiology, The Affiliated Jiangning Hospital of Nanjing Medical University Nanjing, Jiangsu, China.
Qing-Lai TangDepartment of Urology, The Affiliated Jiangning Hospital of Nanjing Medical University Nanjing, Jiangsu, China.
Xing-Zhu ZhouDepartment of Urology, The Affiliated Jiangning Hospital of Nanjing Medical University Nanjing, Jiangsu, China.
Rong-Zhen TaoDepartment of Urology, The Affiliated Jiangning Hospital of Nanjing Medical University Nanjing, Jiangsu, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo evaluate the efficacy and safety of retrograde intrarenal surgery (RIRS) combined with a flexible vacuum-assisted ureteral access sheath (FV-UAS) in patients with 1-2 cm lower calyceal renal stones. PATIENTS AND

methodsIn total, 203 patients with calyceal stones were prospectively randomized into two groups (Clinical trial registration number: ChiCTR2200056402). Of them, 101 patients were assigned to the FV-UAS group and 102 to the traditional UAS group (control). The primary outcome was the stone-free rate (SFR) on postoperative day 1 and in the 4th week. Secondary outcomes included operative time, length of postoperative hospital stay, hospitalization costs, and procedure-related complications.

resultsNo significant differences were noted in baseline demographics and preoperative clinical characteristics between the two groups (all

conclusionsOur findings suggest that the combination of FV-UAS and RIRS offers a promising treatment approach for 1-2 cm lower calyceal renal stones. This method results in higher SFRs, lower complication rates, and reduced hospitalization costs, making it a valuable technique for clinical adoption.

Indexed as

flexible vacuum-assisted ureteral access sheathintrarenal pressurelower calyceal renal stoneRetrograde intrarenal surgerystone-free rate

Identifiers

PMID40978093
PMCPMC12444388

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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.