Evidence map›Paper›PMID 34477954›Full record

ArticleWorld journal of urology2022

Experimental ex-vivo performance study comparing a novel, pulsed thulium solid-state laser, chopped thulium fibre laser, low and high-power holmium:YAG laser for endoscopic enucleation of the prostate.

Mehmet Yilmaz, Julia Esser, Lea Kraft, Ralf Petzold, August Sigle, Christian Gratzke, Rodrigo Suarez-Ibarrola, Arkadiusz Miernik

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in World journal of urology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 4 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

19 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Pooled it
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  5. Thulium fiber laser versus holmium MOSESProstate cancer and prostatic diseases · 2026
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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

8 authors.

Mehmet Yilmaz *Faculty of Medicine, Department of Urology, University of Freiburg-Medical Centre, Hugstetter Str. 55, 79106, Freiburg, Germany.
Julia Esser *Faculty of Medicine, Department of Urology, University of Freiburg-Medical Centre, Hugstetter Str. 55, 79106, Freiburg, Germany.
Lea KraftFaculty of Medicine, Department of Urology, University of Freiburg-Medical Centre, Hugstetter Str. 55, 79106, Freiburg, Germany.
Ralf PetzoldFaculty of Medicine, Department of Urology, University of Freiburg-Medical Centre, Hugstetter Str. 55, 79106, Freiburg, Germany.
August SigleFaculty of Medicine, Department of Urology, University of Freiburg-Medical Centre, Hugstetter Str. 55, 79106, Freiburg, Germany.
Christian GratzkeFaculty of Medicine, Department of Urology, University of Freiburg-Medical Centre, Hugstetter Str. 55, 79106, Freiburg, Germany.
Rodrigo Suarez-IbarrolaFaculty of Medicine, Department of Urology, University of Freiburg-Medical Centre, Hugstetter Str. 55, 79106, Freiburg, Germany.
Arkadiusz MiernikFaculty of Medicine, Department of Urology, University of Freiburg-Medical Centre, Hugstetter Str. 55, 79106, Freiburg, Germany. arkadiusz.miernik@uniklinik-freiburg.de.ORCID http://orcid.org/0000-0001-5894-9647

Funding

Dornier MedTech Laser GmbH (DE) (ZVK20200072801 (1040185101))
6 · The paper itself

Abstract

purposeThe aim of this study was to compare the enucleation performances of four different types of laser devices in an ex-vivo experiment: a novel, pulsed Tm:YAG solid-state laser evaluation model (p-Tm:YAG), chopped thulium fibre laser (TFL), low-power Ho:YAG laser (LP-Ho:YAG), and a high-power Ho:YAG laser (HP-Ho:YAG).

methodsOur primary aim was to endoscopically separate the fascial layers of a porcine belly using laser fibres within a time period of 60 s. The size of a "tissue pocket" was assessed numerically. The enucleation characteristics reflecting the surgeon's experience were evaluated via the NASA Task Load Index (TLX) questionnaire and a questionnaire based on Likert scale.

resultsHP-Ho:YAG achieved with the available laser settings the largest overall "tissue pocket" (31.5 cm

conclusionWe are the first to compare different laser devices and settings in an ex-vivo study. We found that the surgeons were most satisfied with the HP-Ho:YAG laser device, followed by the p-Tm:YAG. These findings could be highly relevant for future research and for the practical utilisation of laser systems in endourology.

Indexed as

Lasers, Solid-StateLaser TherapyLithotripsy, LaserAnimalsHolmiumMaleProstateSwineThuliumHolmiumThuliumBenign prostatic hyperplasiaHolmium laserPulsed thulium laserThulium fibre laserTransurethral endoscopic enucleation of the prostate

Identifiers

PMID34477954
PMCPMC8921029

What OpenQuestion holds

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LicenceCC BY
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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.