Evidence map›Paper›PMID 39704866›Full record

ArticleWorld journal of urology2024

Assessing flexible ureteroscopy outcomes for lower Pole versus non lower Pole stones using the flexible and navigable suction ureteric access sheath: a prospective multicenter study by EAU Endourology and PEARLS group.

Anil Shrestha, Olivier Traxer, Christian Seitz, Mariela Corrales, Daniele Castellani, Ben Hall Chew, Deepak Ragoori, Udita Mishra, Saeed Bin Hamri, Karl Marvin Tan and 5 more

Abstract readMulticenter StudyComparative 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 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. [Stones in the lower pole and their treatment].Urologie (Heidelberg, Germany) · 2025
    Article
  13. Article
  14. Article
  15. 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

15 authors.

Anil ShresthaDepartment of Urology, National Academy of Medical Sciences, Bir Hospital, Kathmandu, Nepal. anyl77@hotmail.com.ORCID http://orcid.org/0000-0002-2249-5345
Olivier TraxerProgressive Endourological Association for Research and Leading Solutions (PEARLS), Paris, France.ORCID http://orcid.org/0000-0002-2459-3803
Christian SeitzDepartment of Urology, Medical University of Vienna, Vienna, Austria.
Mariela CorralesProgressive Endourological Association for Research and Leading Solutions (PEARLS), Paris, France.
Daniele CastellaniUrology Unit, Azienda Ospedaliero-Universitaria delle Marche, Università Politecnica delle Marche, Ancona, Italy.
Ben Hall ChewDepartment of Urology, University of British Columbia Vancouver, Vancouver, Canada.
Deepak RagooriDepartment of Urology, Asian Institute of Nephrology & Urology Hyderabad, Hyderabad, India.
Udita MishraDepartment of Urology, National Academy of Medical Sciences, Bir Hospital, Kathmandu, Nepal.
Saeed Bin HamriDivision of Urology, Department of Surgery, Ministry of the National Guard Health Affairs, King Saud Bin Abdulaziz University for Health Sciences, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia.
Karl Marvin TanDepartment of Surgery, Section of Urology, Veterans Memorial Medical Center, Quezon City, Philippines.
Steffi Kar Kei YuenSH Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong, Hong Kong, China.
Akash ChitrakarDepartment of Urology, National Academy of Medical Sciences, Bir Hospital, Kathmandu, Nepal.
Etienne Xavier KellerProgressive Endourological Association for Research and Leading Solutions (PEARLS), Paris, France.ORCID http://orcid.org/0000-0003-1667-7609
Bhaskar Kumar SomaniDepartment of Urology, University Hospitals Southampton, NHS Trust Southampton, UK.
Vineet GauharProgressive Endourological Association for Research and Leading Solutions (PEARLS), Paris, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeUse of suction in flexible ureteroscopy is increasing lately. The introduction of flexible and navigable suction access sheath (FANS) has shown improved stone free rate (SFR). However, its efficacy in lower pole stone (LPS) in terms of SFR and complications is yet to be studied.

methodsWe collected data from 25 centers that included 394 adult patients undergoing ureteroscopy using FANS. Non contrast CT (NCCT) scan was done within first 30 days post operatively to access the SFR. Residual fragments were graded as A: 100% SFR; B: single fragment ≤ 2 mm; C: single fragment 2.1-4 mm; D: Single or multiple fragments > 4 mm. Post operative complications were recorded.

resultsOut of 394 patients, non LPS (group1) comprised of 268 patients, rest 126 patients had LPS (group 2). Single stage zero fragment SFR was seen in 58.6% (group 1) vs. 54.8% (group 2) (P = 0.619). Single stage grade A + B SFR was achieved in 96.6% vs. 98.4% in groups 1 and 2 respectively. On multivariate analysis Thulium fiber laser use was significantly associated with higher odds of being grade A stone-free, while stone volume with lower odds. In LPS group only two patients needed reintervention. The highest grade of complication was Clavien 2, which was seen in 3.2% LPS group.

conclusionUse of flexible and navigable suction ureteric access sheath for lower pole stones is effective and safe. The stone free rate of lower pole stones is comparable to non-lower pole locations with very low reintervention rate in both groups.

Indexed as

Kidney CalculiUreteroscopesUreteroscopyAdultAgedEquipment DesignFemaleHumansMaleMiddle AgedProspective StudiesSuctionTreatment OutcomeLower pole stoneRIRSStone free rateUreteral access sheathUreteroscopy

Identifiers

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.