Evidence map›Paper›PMID 34337521›Full record

ArticleEuropean urology open science2021

Photodynamic Diagnosis-guided Dual Laser Ablation for Upper Urinary Tract Carcinoma: Preoperative Preparation, Surgical Technique, and Clinical Outcomes.

Takashi Yoshida, Takashi Murota, Tomoaki Matsuzaki, Kazuyoshi Nakao, Chisato Ohe, Tadashi Matsuda, Hidefumi Kinoshita

Open access · goldAbstract read
In one paragraph

Article in European urology open science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.5field-weighted citation impact, top 11% 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.

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

17 citing papers in PubMed, 18 citations in OpenAlex.

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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

7 authors at 1 institution in 1 country.

Takashi YoshidaDepartment of Urology and Andrology, Kansai Medical University Hospital, Hirakata, Japan.
Takashi MurotaDepartment of Urology and Andrology, General Medical Center, Kansai Medical University, Osaka, Japan.
Tomoaki MatsuzakiDepartment of Urology and Andrology, Kansai Medical University Hospital, Hirakata, Japan.
Kazuyoshi NakaoDepartment of Urology and Andrology, Kansai Medical University Hospital, Hirakata, Japan.
Chisato OheDepartment of Pathology and Laboratory Medicine, Kansai Medical University, Osaka, Japan.
Tadashi MatsudaDepartment of Urology and Andrology, Kansai Medical University Hospital, Hirakata, Japan.
Hidefumi KinoshitaDepartment of Urology and Andrology, Kansai Medical University Hospital, Hirakata, Japan.
Kansai Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlthough ureteroscopic surgery (URS) is beneficial for low-risk upper urinary tract carcinoma (UTUC), there is no standardized URS technique or navigation system for challenging cases.

objectiveTo present a URS technique for UTUC using thulium (Tm):YAG and holmium (Ho):YAG lasers under photodynamic diagnosis (PDD) guidance, named PDD-guided dual laser ablation (PDD-DLA) and compare its efficacy with that of conventional Ho:YAG laser ablation (HLA; historical control). DESIGN SETTING AND

participantsThe study included ten consecutive UTUC patients who underwent PDD-DLA between 2017 and 2019. The control group comprised 16 consecutive patients who underwent HLA between 2006 and 2016. SURGICAL PROCEDURE: After oral administration of 5-aminolevulinic acid (20 mg/kg), UTUC tumors were endoscopically resected via PDD-DLA. MEASUREMENTS: Clinical data were prospectively collected for our institutional UTUC data set. Disease progression, UTUC recurrence, and clinical outcomes were assessed. RESULTS AND LIMITATIONS: PDD-DLA was successfully performed in all patients. The median tumor size was 23.5 mm (interquartile range [IQR] 12.8-30.0) and there were four cases (40.0%) of high-grade tumor. The median operative time was 120 min (IQR 98.5-142.5). No Clavien-Dindo grade ≥3 complications were observed. There were no differences in most clinical characteristics between the PDD-DLA and HLA groups. The 2-yr progression-free survival rate was 100% in the PDD-DLA group and 58.7% in the HLA group (

conclusionsPDD-DLA seems to be an effective and feasible endoscopic technique for UTUC treatment with favorable oncological outcomes. PATIENT SUMMARY: We investigated a new laser technique for treating cancer of the upper urinary tract called photodynamic diagnosis-guided dual laser ablation. Our strategy was effective in removing tumors and stopping bleeding. Further studies in larger groups of patients are needed to confirm whether this technique improves cancer outcomes.

Indexed as

DiagnosisLaser ablationPhotodynamic diagnosisUpper urinary tract carcinomaUreteroscopy

Identifiers

PMID34337521
PMCPMC8317804
OpenAlexW3159454632

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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.