Evidence map›Paper›PMID 40042500›Full record

ArticleUrology practice2025

The Effect of Preoperative Tamsulosin on Pediatric Ureteroscopic Access: A Multi-Institutional Experience.

Kayla M Meyer, Kwesi Asantey, Jonathan S Ellison, Aditya Jadcherla, Tori Kostman, Adam Ostergar, Erica J Traxel, Alethea Paradis, Joel Vetter, Douglas W Storm and 5 more

Abstract readMulticenter Study
In one paragraph

Article in Urology practice, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Kayla M MeyerUniversity of Michigan Medical School, Ann Arbor, Michigan.
Kwesi AsanteyDepartment of Urology, Medical College of Wisconsin, Milwaukee, Wisconsin.
Jonathan S EllisonDepartment of Urology, Medical College of Wisconsin, Milwaukee, Wisconsin.
Aditya JadcherlaDepartment of Urology, Medical College of Wisconsin, Milwaukee, Wisconsin.
Tori KostmanDepartment of Urology, Medical College of Wisconsin, Milwaukee, Wisconsin.
Adam OstergarDepartment of Urology, Mayo Clinic, Phoenix, Arizona.
Erica J TraxelDivision of Urologic Surgery, Washington University, St Louis, Missouri.
Alethea ParadisWashington University School of Medicine, St Louis, Missouri.
Joel VetterWashington University School of Medicine, St Louis, Missouri.
Douglas W StormDepartment of Urology, University of Iowa Hospitals and Clinics, Iowa City, Iowa.
Linder WendtInstitute for Clinical and Translational Science, University of Iowa, Iowa City, Iowa.
Patrick Ten EyckInstitute for Clinical and Translational Science, University of Iowa, Iowa City, Iowa.
Erik S DavisDepartment of Urology, University of Iowa Hospitals and Clinics, Iowa City, Iowa.
Lauren McGeeDepartment of Urology, Oregon Health & Science University, Portland, Oregon.
Kate H KraftDepartment of Urology, Michigan Medicine, Ann Arbor, Michigan.

Funding

University of Iowa Institute for Clinical and Translational ScienceUM1TR004403 · NCATS · UNIVERSITY OF IOWA · PI Marlan R Hansen, Patricia Winokur · 2023 to 2026
$16.1M
NCATS NIH HHS UM1 TR004403
6 · The paper itself

Abstract

introductionThe ability to perform flexible ureteroscopy in children may be limited because of a smaller pediatric ureterovesical junction and ureteral diameter. Tamsulosin has been shown to improve success rates of ureteral instrumentation in adults. To date, the efficacy of this medication to facilitate pediatric ureteral access remains unclear.

methodsWe conducted a multi-institutional retrospective review of patients aged 0 to 17 years who underwent ureteroscopy for the treatment of nephrolithiasis from 2013 to 2022. Patients were excluded if they had undergone ureteroscopy or ureteral stent placement within the prior year, underwent semirigid ureteroscopy, or had a known genitourinary abnormality. Study groups included patients prescribed 0.4 mg tamsulosin daily for at least 1 week preoperatively and patients who did not receive tamsulosin.

resultsThere were 382 patients included, with 126 in the tamsulosin group and 256 in the no-tamsulosin group. Although there were no differences in sex, race, and stone characteristics between the 2 groups, the tamsulosin group was significantly older and had a larger BMI. One week of preoperative tamsulosin was associated with a significantly increased success of flexible ureteroscopic access on first attempt ureteroscopy, with a 24% failure in the no-tamsulosin group vs a 13% failure in the tamsulosin group (

conclusionsOur results expand on prior research and suggest that at least 1 week of preoperative tamsulosin facilitates flexible ureteroscopic access in the pediatric population. These results have significant clinical implications, with the potential to reduce multiple procedures and spare children from repeat anesthetic exposures.

Indexed as

Adrenergic alpha-1 Receptor AntagonistsNephrolithiasisPreoperative CareTamsulosinUreteroscopyAdolescentChildChild, PreschoolFemaleHumansInfantMaleRetrospective StudiesAdrenergic alpha-1 Receptor AntagonistsTamsulosinadolescentchildtamsulosinureteroscopyurolithiasis

Identifiers

PMID40042500
PMCPMC13108625

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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.