Evidence map›Paper›PMID 28229211›Full record

ArticleWorld journal of urology2017

Multicenter international experience of 532 nm-laser photo-vaporization with Greenlight XPS in men with large prostates (prostate volume > 100 cc).

Malek Meskawi, Pierre-Alain Hueber, Roger Valdivieso, Franck Bruyere, Vincent Misrai, Georges Fournier, Ravi Munver, Ganesh Sivarajan, Matthew Rutman, Alexis E Te and 6 more

Abstract readMulticenter Study
PubMed Publisher
In one paragraph

Article in World journal of urology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 3 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

22 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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  19. Aquablation among novice users in Canada: A WATER II subpopulation analysis.Canadian Urological Association journal = Journal de l'Association des urologues du Canada · 2019
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

16 authors.

Malek MeskawiDepartment of Urology, University of Montreal Hospital Center (CHUM), Montréal, QC, Canada.
Pierre-Alain HueberDepartment of Urology, University of Montreal Hospital Center (CHUM), Montréal, QC, Canada.
Roger ValdiviesoDepartment of Urology, University of Montreal Hospital Center (CHUM), Montréal, QC, Canada.
Franck BruyereDepartment of Urology, CHU Tours, Tours, France.
Vincent MisraiDepartment of Urology, Clinique Pasteur Toulouse, Toulouse, France.
Georges FournierDepartment of Urology, CHU Brest, Brest, France.
Ravi MunverDepartment of Urology, Hackensack University, Hackensack, USA.
Ganesh SivarajanDepartment of Urology, Hackensack University, Hackensack, USA.
Matthew RutmanDepartment of Urology, Columbia University, New York City, USA.
Alexis E TeDepartment of Urology, Cornell University, New York City, USA.
Bilal ChughtaiDepartment of Urology, Cornell University, New York City, USA.
Dean EltermanDepartment of Urology, University of Toronto, Toronto, Canada.
Tristan MartelDepartment of Urology, University of Montreal Hospital Center (CHUM), Montréal, QC, Canada.
Mounsif AziziDepartment of Urology, University of Montreal Hospital Center (CHUM), Montréal, QC, Canada.
Pierre I KarakiewiczDepartment of Urology, University of Montreal Hospital Center (CHUM), Montréal, QC, Canada.
Kevin C ZornDepartment of Urology, University of Montreal Hospital Center (CHUM), Montréal, QC, Canada. zorn.chumurology@gmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo evaluate the outcomes and durability of photoselective vaporization of the prostate (PVP) using the XPS-180 system in patients with a large prostate volume (PV) > 100 cc at 4 years of follow-up in a large, multicenter experience.

methods438 men with pre-operative transrectal ultrasound (TRUS) PV > 100 cc were treated in eight experienced centers in Canada, USA, and in France with the Greenlight XPS laser using PVP for the treatment of symptomatic BPH. IPSS, Qmax, postvoid residual (PVR), and prostate-specific antigen (PSA) were measured at 6, 12, 24, 36, and 48 months. Durability was evaluated using BPH retreatment rate at 12, 24, and 36 months.

resultsMedian PV and PSA were 121 cc and 6.3 ng/dl. Indwelling catheter at the time of surgery was observed in 37% of men. Median operative, laser time, and energy applied were 90 min, 55 min, and 422 kJ, respectively. Median energy delivery was 3.4 kJ/cc of prostate per case. Outpatient surgery was feasible with median length of stay at 24 h. IPSS, Qmax and PVR were significantly improved at all endpoints including at 48 months. Moreover, surgical BPH retreatment rates were 5.4 and 9.3% at 24 and 36 months. Interestingly, characteristics of retreated men include: energy delivery 2.4 vs. 3.4 kJ/cc of prostate (p = 0.02) and PSA reduction at 12 months 26 vs. 51% (p = 0.02).

conclusionsPVP using Greenlight XPS-180W can potentially provide durable improvements with regard to functional outcomes at 4 years. However, rising retreatment rates after 3 years is of concern. This highlights the imperative need of utilizing a standardized surgical technique (enucleation-like-defect) and an optimal energy density >3KJ/cc.

Indexed as

Laser TherapyPostoperative ComplicationsProstateUrethral ObstructionAgedFollow-Up StudiesHumansLower Urinary Tract SymptomsMaleOrgan SizeOutcome and Process Assessment, Health CareProstatic HyperplasiaRetreatmentSymptom AssessmentUltrasonography>100 ccBenign prostate hyperplasiaGreenlightLarge prostatePhotoselective vaporization of the prostateXPS

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.