Evidence map›Paper›PMID 32578332›Full record

Trial reportBJU international2020

Transurethral en bloc submucosal hydrodissection vs conventional resection for resection of non-muscle-invasive bladder cancer (HYBRIDBLUE): a randomised, multicentre trial.

Georgios Gakis, Alexander Karl, Simone Bertz, Maximillian Burger, Hans-Martin Fritsche, Arndt Hartmann, Friedrich Jokisch, Carsten Kempkensteffen, Kurt Miller, Jens Mundhenk and 5 more

Open access · hybridAbstract readMulticenter StudyRandomized Controlled TrialEquivalence Trial
PubMed Publisher
In one paragraph

Trial report in BJU international, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 3 pooled it
5.5field-weighted citation impact, top 3% 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

27 citing papers in PubMed, 3 syntheses or guidelines pooled it, 42 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Trial
  6. Article
  7. Review
  8. Article
  9. Article
  10. Translational andrology and urology · 2025
    Article
  11. Review
  12. Observational
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. Review
  20. En bloc transurethral resection of bladder tumors: A review of current techniques.Canadian Urological Association journal = Journal de l'Association des urologues du Canada · 2022
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

15 authors at 6 institutions in 1 country.

Georgios GakisDepartment of Urology and Pediatric Urology, University Hospital of Würzburg, Würzburg, Germany.ORCID 0000-0003-0995-2406
Alexander KarlDepartment of Urology, University Hospital of Munich-Grosshadern, Munich, Germany.
Simone BertzDepartment of Pathology, University Hospital of Erlangen-Nürnberg, Erlangen, Germany.
Maximillian BurgerDepartment of Urology, Caritas St. Josef Hospital, University of Regensburg, Regensburg, Germany.
Hans-Martin FritscheDepartment of Urology, Caritas St. Josef Hospital, University of Regensburg, Regensburg, Germany.
Arndt HartmannDepartment of Pathology, University Hospital of Erlangen-Nürnberg, Erlangen, Germany.
Friedrich JokischDepartment of Urology, University Hospital of Munich-Grosshadern, Munich, Germany.ORCID 0000-0003-0339-2655
Carsten KempkensteffenDepartment of Urology, Charite, University Hospital of Berlin, Berlin, Germany.
Kurt MillerDepartment of Urology, Charite, University Hospital of Berlin, Berlin, Germany.
Jens MundhenkDepartment of Urology, Diakonie-Klinikum Stuttgart, Stuttgart, Germany.
Birte-Swantje SchneevoigtDepartment of Urology, University Hospital of Munich-Grosshadern, Munich, Germany.
Tina SchubertDepartment of Urology and Pediatric Urology, University Hospital of Würzburg, Würzburg, Germany.
Christian SchwentnerDepartment of Urology, Diakonie-Klinikum Stuttgart, Stuttgart, Germany.
Bernd WullichDepartment of Urology and Pediatric Urology, University Hospital Erlangen, Erlangen, Germany.
Arnulf StenzlDepartment of Urology, University Hospital of Tübingen, Tübingen, Germany.
München Klinik · DEUniversity Children's Hospital Tübingen · DECharité - Universitätsmedizin Berlin · DEDiakonie-Klinikum Stuttgart · DESt. Josef-Hospital · DEUniversitätsklinikum Erlangen · DE

Funding

Erbe Elektromedizin GmbHIpsen Pharma GmbH
6 · The paper itself

Abstract

objectiveTo determine whether transurethral en bloc submucosal hydrodissection of bladder tumours (TUEB) improves the quality of the resection compared to conventional transurethral resection of bladder tumour (TURBT) in patients with non-muscle-invasive bladder cancer (NMIBC). PATIENTS AND

methodsA randomised, multicentre trial (HYBRIDBLUE) was conducted with a superiority design. Six German academic centres participated between September 2012 and August 2015. Based on literature analysis, a sample size for accurate histopathological assessment concerning muscle invasion was assumed to be feasible in 50% (P

resultsA total of 115 patients (TUEB 56; TURBT 59) were eligible for final analysis. Adequate histopathological assessment, which included muscularis propria content and tumour margins (R0 vs R1), was present in 48/56 (86%) TUEB patients compared to 37/59 (63%; P = 0.006) in the TURBT group. R0 was confirmed in 30/56 TUEB patients (57%) and five of 59 TURBT patients (9%; P < 0.001). No complications of Grade ≥III were observed in both arms. At 3 and 12 months, three and 19 patients recurred in the TUEB group vs seven and 11 patients in the TURBT group, respectively (P = 0.33 and P = 0.08).

conclusionsIn this randomised study, TUEB was shown to be clinically safe regarding perioperative endpoints. An adequate histopathological assessment concerning muscle invasion was significantly better assessable in the TUEB arm compared to standard TURBT. This finding indicates the clinical potential for reducing the rate of early re-resections. Yet, a larger study with recurrence-free survival as the primary endpoint is needed to assess the oncological efficacy between both techniques.

Indexed as

AgedAged, 80 and overCarcinomaCystectomyDissectionFemaleGermanyHumansMaleMiddle AgedNeoplasm InvasivenessNeoplasm StagingPostoperative ComplicationsUrinary Bladder Neoplasmsbladder cancer#BladderCancer#blcsmen blochexaminolevulinatehydrodissectionphotodynamic diagnosistransurethraltrial

Identifiers

PMID32578332
OpenAlexW3037012150

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.