Evidence map›Paper›PMID 35311351›Full record

ArticleThe Journal of urology2022

Fragmentation of Stones by Burst Wave Lithotripsy in the First 19 Humans.

Jonathan D Harper, James E Lingeman, Robert M Sweet, Ian S Metzler, Peter L Sunaryo, James C Williams, Adam D Maxwell, Jeff Thiel, Bryan W Cunitz, Barbrina Dunmire and 2 more

2 registry-linked trialsOpen access · greenAbstract read
In one paragraph

Article in The Journal of urology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
4.4field-weighted citation impact, top 4% of its field
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.

NCT03811171 narecruitingnot on this map

A Study of the SonoMotion Break Wave(TM) System for the Comminution of Urinary Tract Stones

TypeinterventionalSponsorSonoMotionRan2019 to 2027Enrolled70ConditionsRenal Calculi, Urinary CalculiArmsBreak Wave extracorporeal lithotripsy
NCT04796792 narecruitingnot on this mapstarted 2023, after this paper: background citation

Ultrasound Technology to Fragment and Reposition Urinary Stones

TypeinterventionalSponsorUniversity of WashingtonRan2023 to 2028Enrolled140ConditionsUrinary Stone, Urinary CalculiArmsBurst Wave Lithotripsy (BWL) and Ultrasonic Propulsion (UP)
3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 31 citations in OpenAlex.

  1. Trial
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  9. Fracture and Fragmentation of Vascular Calcifications by Focused Ultrasound.Journal of cardiovascular translational research · 2025
    Article
  10. Article
  11. Overview of Therapeutic Ultrasound Applications and Safety Considerations: 2024 Update.Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine · 2025
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 3 institutions in 1 country.

Jonathan D HarperDepartment of Urology, University of Washington School of Medicine, Seattle, Washington.
James E LingemanDepartment of Urology, Indiana University School of Medicine, Indianapolis, Indiana.
Robert M SweetDepartment of Urology, University of Washington School of Medicine, Seattle, Washington.
Ian S MetzlerDepartment of Urology, University of Washington School of Medicine, Seattle, Washington.
Peter L SunaryoDepartment of Urology, University of Washington School of Medicine, Seattle, Washington.
James C WilliamsDepartment of Anatomy, Cell Biology, and Physiology, Indiana University School of Medicine, Indianapolis, Indiana.
Adam D MaxwellDepartment of Urology, University of Washington School of Medicine, Seattle, Washington.
Jeff ThielCenter for Industrial and Medical Ultrasound, Applied Physics Laboratory, University of Washington,Seattle, Washington.
Bryan W CunitzCenter for Industrial and Medical Ultrasound, Applied Physics Laboratory, University of Washington,Seattle, Washington.
Barbrina DunmireCenter for Industrial and Medical Ultrasound, Applied Physics Laboratory, University of Washington,Seattle, Washington.
Michael R BaileyDepartment of Urology, University of Washington School of Medicine, Seattle, Washington.ORCID 0000-0003-0491-6465
Mathew D SorensenDepartment of Urology, University of Washington School of Medicine, Seattle, Washington.
University of Washington · USUniversity of Washington Applied Physics Laboratory · USIndiana University School of Medicine

Funding

SWL AND RENAL INJURY AND STONE COMMINUTIONP01DK043881 · NIDDK · UNIVERSITY OF WASHINGTON · PI BAILEY, MICHAEL R · 1994 to 2023
$33.5M
Noninvasive fragmentation of urinary calculi with focused ultrasound burstsK01DK104854 · NIDDK · UNIVERSITY OF WASHINGTON · PI MAXWELL, ADAM DOUGLAS · 2015 to 2019
$686k
NIDDK NIH HHS K01 DK104854NIDDK NIH HHS P01 DK043881
6 · The paper itself

Abstract

purposeWe report stone comminution in the first 19 human subjects by burst wave lithotripsy (BWL), which is the transcutaneous application of focused, cyclic ultrasound pulses. MATERIALS AND

methodsThis was a prospective multi-institutional feasibility study recruiting subjects undergoing clinical ureteroscopy (URS) for at least 1 stone ≤12 mm as measured on computerized tomography. During the planned URS, either before or after ureteroscope insertion, BWL was administered with a handheld transducer, and any stone fragmentation and tissue injury were observed. Up to 3 stones per subject were targeted, each for a maximum of 10 minutes. The primary effectiveness outcome was the volume percent comminution of the stone into fragments ≤2 mm. The primary safety outcome was the independent, blinded visual scoring of tissue injury from the URS video.

resultsOverall, median stone comminution was 90% (IQR 20, 100) of stone volume with 21 of 23 (91%) stones fragmented. Complete fragmentation (all fragments ≤2 mm) within 10 minutes of BWL occurred in 9 of 23 stones (39%). Of the 6 least comminuted stones, likely causative factors for decreased effectiveness included stones that were larger than the BWL beamwidth, smaller than the BWL wavelength or the introduction of air bubbles from the ureteroscope. Mild reddening of the papilla and hematuria emanating from the papilla were observed ureteroscopically.

conclusionsThe first study of BWL in human subjects resulted in a median of 90% comminution of the total stone volume into fragments ≤2 mm within 10 minutes of BWL exposure with only mild tissue injury.

Indexed as

Kidney CalculiLithotripsyUreteral CalculiHumansProspective StudiesTreatment OutcomeUreteroscopykidney calculilithotripsyultrasonographyureteral calculiureteroscopy

Identifiers

PMID35311351
PMCPMC9078634
OpenAlexW4220880408

What OpenQuestion holds

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Read underepoch 390

Registered trials

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.