Evidence map›Paper›PMID 39499350›Full record

ArticleWorld journal of urology2024

Efficacy analysis of tip-flexible suction access sheath during flexible ureteroscopic lithotripsy for unilateral upper urinary tract calculi.

Zhaoxin Ying, Hao Dong, Chao Li, Shuwei Zhang, Yin Chen, Minjie Chen, Yonghan Peng, Xiaofeng Gao

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in World journal of urology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 7 pooled it
–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

18 citing papers in PubMed, 7 syntheses or guidelines pooled it.

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  9. Stone-Event-Free Survival After Ureteroscopic Lithotripsy According to Residual Fragment Size: Zero Residual Fragment Indicates a Good Prognosis.International journal of urology : official journal of the Japanese Urological Association · 2026
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Zhaoxin Ying *Department of Urology, Changhai Hospital, First Affiliated Hospital of Naval Medical University, Shanghai, China.
Hao Dong *Department of Urology, Changhai Hospital, First Affiliated Hospital of Naval Medical University, Shanghai, China.
Chao LiDepartment of Urology, Changhai Hospital, First Affiliated Hospital of Naval Medical University, Shanghai, China.
Shuwei ZhangDepartment of Urology, Changhai Hospital, First Affiliated Hospital of Naval Medical University, Shanghai, China.
Yin ChenDepartment of Urology, Changhai Hospital, First Affiliated Hospital of Naval Medical University, Shanghai, China.
Minjie ChenDepartment of Urology, Changhai Hospital, First Affiliated Hospital of Naval Medical University, Shanghai, China.
Yonghan PengDepartment of Urology, Changhai Hospital, First Affiliated Hospital of Naval Medical University, Shanghai, China. yonghanyhtl@163.com.
Xiaofeng GaoDepartment of Urology, Changhai Hospital, First Affiliated Hospital of Naval Medical University, Shanghai, China. gxfdoc@hotmail.com.

Funding

National Natural Science Foundation of China 82270805
6 · The paper itself

Abstract

purposeThis study aims to evaluate the efficacy of tip-flexible suctioning ureteral access sheath (TFS-UAS) compared to traditional ureteral access sheath (T-UAS) in flexible ureteroscopic lithotripsy (FURL) for unilateral upper urinary tract calculi.

methodsThe study retrospectively compared outcomes from 103 cases using TFS-UAS and 138 using T-UAS treated with FURL for unilateral upper urinary tract calculi from January to October 2023. Assessed parameters included patient demographics, stone characteristics, preoperative urine cultures, ureteral pre-stenting, comorbidities, procedure time, stone-free rate (SFR), utilization of stone retrieval baskets, and postoperative Systemic Inflammatory Response Syndrome (SIRS) rates. The maximum angle of deflection was also measured when the flexible ureteroscope was located in different parts of the TFS-UAS with different diameters in vitro.

resultsThe TFS-UAS group achieved a higher Immediate SFR (76.70% vs. 63.77%, p = 0.031) and final SFR (89.32% vs. 73.91%, p = 0.003) than the T-UAS group, especially in the lower calyx stones (80.00% vs. 41.18%, p = 0.018) and upper urinary tract calculi with a cumulative diameter of 2 cm or larger (68.97% vs. 42.11%, p = 0.029). Notably, TFS-UAS with a 10 French (F) inside diameter size achieved a higher SFR (88.57% vs. 70.59%, p = 0.041) and a greater deflection angle than the 12.5 F inside diameter size. No significant variations were observed in the operative duration, hospitalization duration and the occurrence of SIRS between the compared cohorts.

conclusionTFS-UAS significantly improves SFR in FURL treatment of unilateral upper urinary tract calculi, particularly for stones located in the lower calyx or with a cumulative diameter of 2 cm or greater, compared to T-UAS.

Indexed as

Kidney CalculiLithotripsyUreteral CalculiUreteroscopesUreteroscopyAdultAgedEquipment DesignFemaleHumansMaleMiddle AgedRetrospective StudiesSuctionTreatment OutcomeFlexible ureteroscopic lithotripsyRenal calculiStone-free rateUreteral access sheath

Identifiers

PMID39499350

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Registered trials

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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.