Evidence map›Paper›PMID 40044802›Full record

Trial reportWorld journal of urology2025

Impact of peritoneal bladder flap in robot-assisted radical prostatectomy patients on lymphoceles: a prospective randomised trial.

Randi M Pose, S Knipper, B Beyer, L Hohenhorst, A Haese, H Heinzer, G Salomon, T Steuber, L Budäus, D Tilki and 5 more

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in World journal of urology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 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

3 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Article
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

15 authors.

Randi M PoseMartini-Klinik Prostate Cancer Centre, University Hospital Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany. r.pose@uke.de.ORCID http://orcid.org/0000-0002-7818-8125
S KnipperDepartment of Urology, Vivantes Klinikum am Urban, Berlin, Germany.
B BeyerUrological Competence Centre for Rehabilitation, Klinik Wildetal, Kliniken-Hartenstein, Bad Wildungen, Germany.
L HohenhorstMartini-Klinik Prostate Cancer Centre, University Hospital Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.
A HaeseMartini-Klinik Prostate Cancer Centre, University Hospital Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.
H HeinzerMartini-Klinik Prostate Cancer Centre, University Hospital Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.
G SalomonMartini-Klinik Prostate Cancer Centre, University Hospital Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.
T SteuberMartini-Klinik Prostate Cancer Centre, University Hospital Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.
L BudäusMartini-Klinik Prostate Cancer Centre, University Hospital Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.
D TilkiMartini-Klinik Prostate Cancer Centre, University Hospital Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.
H IsbarnDepartment of Urology, Vivantes Klinikum am Urban, Berlin, Germany.
T MaurerMartini-Klinik Prostate Cancer Centre, University Hospital Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.
P TennstedtMartini-Klinik Prostate Cancer Centre, University Hospital Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.
M GraefenMartini-Klinik Prostate Cancer Centre, University Hospital Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.
U MichlMartini-Klinik Prostate Cancer Centre, University Hospital Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo test the impact of fixing a peritoneal flap of the bladder to the plexus Santorini as final step of robot-assisted radical prostatectomy (RARP) to reduce the incidence of symptomatic lymphoceles and postoperative complications. PATIENTS AND

methodsA two-armed prospective randomised, controlled, single-centre trial on 1080 patients with prostate cancer who underwent RARP with bilateral pelvic lymph node dissection was carried out. Patients in the intervention arm received fixation of the peritoneal flap of the bladder to the plexus Santorini at the end of surgery (Michl-technique, MT); in the control group, surgery was performed without this modification. The primary endpoint was the rate of lymphoceles requiring intervention. Secondary endpoints were total lymphocele rate, other complications ≥ grade IIIa according to Clavien-Dindo and continence rates within one year after RARP.

resultsOverall, between June 2017 and October 2019, 531 patients were randomised to the MT and 549 to the control arm. There were no differences in both arms with respect to age at surgery, PSA, BMI, prostate volume, surgical time, blood loss, and time to removal of the catheter. Overall, in median 14 lymph nodes were dissected and 337 (32%) patients had a lymphocele. There was no statistically significant difference in lymphoceles requiring intervention (7.2% in MT-group versus 8.8% in control group, p = 0.4). There was no difference in continence rates and other complications between the two groups after one-year-follow-up.

conclusionsThere was no significant reduction in symptomatic lymphoceles observed when using the Michl-technique. Lymphoceles remain a significant complication post lymph node dissection in RARP patients.

Indexed as

LymphocelePeritoneumPostoperative ComplicationsProstatectomyProstatic NeoplasmsRobotic Surgical ProceduresSurgical FlapsAgedHumansLymph Node ExcisionMaleMiddle AgedProspective StudiesUrinary BladderComplicationLymphocelePelvic lymph node dissectionProstate cancerProstatectomy

Identifiers

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.