Evidence map›Paper›PMID 39158747›Full record

ArticleWorld journal of urology2024

Steady-state versus burst lasing techniques for thulium fiber laser.

Alba Sierra, Catalina Solano, Mariela Corrales, Eugenio Ventimiglia, Frederic Panthier, Jia-Lun Kwok, Marie Chicaud, Etienne Xavier Keller, Olivier Traxer

Abstract readComparative Study
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 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

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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

9 authors.

Alba SierraUrology Department, Hospital Clínic de Barcelona, Universitat de Barcelona, Villarroel 170, 08036, Barcelona, Spain. asierradelrio@gmail.com.ORCID http://orcid.org/0000-0003-2474-8067
Catalina SolanoSorbonne University GRC Urolithiasis No. 20 Tenon Hospital, 75020, Paris, France.
Mariela CorralesSorbonne University GRC Urolithiasis No. 20 Tenon Hospital, 75020, Paris, France.
Eugenio VentimigliaSorbonne University GRC Urolithiasis No. 20 Tenon Hospital, 75020, Paris, France.
Frederic PanthierSorbonne University GRC Urolithiasis No. 20 Tenon Hospital, 75020, Paris, France.
Jia-Lun KwokSorbonne University GRC Urolithiasis No. 20 Tenon Hospital, 75020, Paris, France.
Marie ChicaudDepartment of Urology, Limoges University Hospital, 2 Avenue Martin Luther King, 87000, Limoges, France.
Etienne Xavier KellerProgressive Endourological Association for Research and Leading Solutions (PEARLS Group), Paris, France.
Olivier TraxerSorbonne University GRC Urolithiasis No. 20 Tenon Hospital, 75020, Paris, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo evaluate the stone ablation rate and direct thermal damage from thulium fiber laser (TFL) lithotripsy using continuous (C) and burst (B) lasing techniques on an in vitro ureteral model.

methodsThe TFL Drive (Coloplast, Humlebaek, Denmark) was used in an in vitro saline-submerged ureteral model. Ten participants, including five junior and five experienced urologists, conducted the experimental setup with 7 different settings comparing two lasing techniques: steady-state lasing (0.5 J/10 Hz = 5W for 300 s and 0.5 J/20 Hz = 10W for 150 s) and burst, intermittent 5 s on/off lasing (0.5 J/20 Hz, 0.5 J/30 Hz, 0.5 J/60 Hz, 0.1 J/200 Hz, and 0.05 J/400 Hz) with a target cumulative energy of 1500 J using cubic 125 mm

resultsThe were no significant differences in stone ablation mass neither between C and B lasing techniques, nor between expertise levels. At C lasing technique had only mild ureteral lesions with no significant differences between expertise levels (p: 0.97) or laser settings (p: 0.71). At B lasing technique, different types of thermal lesions were found with no expertise (p: 0.11) or setting (p: 0.83) differences. However, B laser setting had higher grade direct thermal lesions than C (p: 0.048).

conclusionRegarding efficacy, C and B lasing techniques achieve comparable stone ablation rates. Safety-wise, B lasing mode showed higher grade of direct thermal lesions. These results should be further investigated to verify which of the lasing mode is the safest in vivo. Until then and unless proven otherwise, a C mode with low frequency should be recommended to avoid ureteral wall lesions.

Indexed as

Lithotripsy, LaserThuliumHumansIn Vitro TechniquesLasers, Solid-StateUreterUreteral CalculiThuliumBurstContinuousLaser efficacyLaser settingsThermal damageThulium fiber laserUrinary stones

Identifiers

PMID39158747
PMCPMC11333515

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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.