Evidence map›Paper›PMID 26279712›Full record

ArticleCanadian Urological Association journal = Journal de l'Association des urologues du Canada

Prevalence and risk factors of contralateral extraprostatic extension in men undergoing radical prostatectomy for unilateral disease at biopsy: A global multi-institutional experience.

Marc Bienz, Pierre-Alain Hueber, Vincent Trudeau, Abdullah M Alenizi, Roger Valdivieso, Modar Alom, Mevlana Derya Balbay, Abdullah Erdem Canda, Vladimir Mouraviev, David M Albala and 5 more

Abstract read
In one paragraph

Article in Canadian Urological Association journal = Journal de l'Association des urologues du Canada. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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

1 citing paper in PubMed.

  1. 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.

Marc BienzFaculty of Medicine, University of Montreal, Montreal, QC;
Pierre-Alain HueberDepartment of Urology, University of Montreal Hospital Centre (CHUM), Hôpital St. Luc, Montreal, QC;
Vincent TrudeauDepartment of Urology, University of Montreal Hospital Centre (CHUM), Hôpital St. Luc, Montreal, QC;
Abdullah M AleniziDepartment of Urology, University of Montreal Hospital Centre (CHUM), Hôpital St. Luc, Montreal, QC;
Roger ValdiviesoDepartment of Urology, University of Montreal Hospital Centre (CHUM), Hôpital St. Luc, Montreal, QC;
Modar AlomAssociated Medical Professionals of New York, New York, NY;
Mevlana Derya BalbayMemorial Sisli Hospital, Department of Urology, Istanbul, Turkey;
Abdullah Erdem CandaYildirim Beyazit University, School of Medicine, Ankara Ataturk Training and Research Hospital, Department of Urology, Ankara, Turkey;
Vladimir MouravievAssociated Medical Professionals of New York, New York, NY;
David M AlbalaAssociated Medical Professionals of New York, New York, NY;
Assaad El-HakimMemorial Sisli Hospital, Department of Urology, Istanbul, Turkey;
Quoc-Dien TrinhDivision of Urologic Surgery and Center for Surgery and Public Health, Brigham and Women's Hospital/Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA.
Mathieu LatourDepartment of Urology, University of Montreal Hospital Centre (CHUM), Hôpital St. Luc, Montreal, QC;
Fred SaadDepartment of Urology, University of Montreal Hospital Centre (CHUM), Hôpital St. Luc, Montreal, QC;
Kevin C ZornDepartment of Urology, University of Montreal Hospital Centre (CHUM), Hôpital St. Luc, Montreal, QC;

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionWe assessed the incidence of contralateral prostate cancer (cPCa), contralateral EPE (cEPE) and contralateral positive surgical margins (cPSM) in patients diagnosed preoperatively with unilateral prostate cancer and evaluated risk factors predictive of contralateral disease extension.

methodsThe occurrence of cPCa, cEPE and cPSM and the side-specific nerve-sparing technique performed were collected postoperatively from 327 men diagnosed with unilateral prostate cancer at biopsy. Parameters, such as the localization, proportion, and percentage of cancer in positive cores, were prospectively collected.

resultsOverall, 50.5% of patients had bilateral disease, and were at higher risk when associated with a positive biopsy core at the apex (p = 0.016). The overall incidence of ipsilateral EPE and cEPE were 21.4% and 3.4%, respectively (p < 0.001). Compared to cPCa, ipsilateral disease was at an almost 4-fold higher risk of extending out of the prostate (p < 0.001). None of the criteria tested were identified as useful predictors for cEPE. The low incidence of cEPE in our cohort could limit our ability to detect significance. The overall incidence of ipsilateral PSM and cPSM were 15.3% and 5.8%, respectively (p < 0.001). More aggressive nerve-sparing was not associated with a higher incidence of PSM. Prostate sides selected for more aggressive nerve-sparing were associated with younger patients (p < 0.001), a smaller prostate (p = 0.006), and a lower percentage of cancer in biopsy material (p = 0.008).

conclusionAlthough the risk of cPCa is high in patients diagnosed with unilateral prostate cancer at biopsy, the risk of cEPE and cPSM is low, yet not insignificant. Contralateral aggressive nerve-sparing should be used with caution and should not compromise oncological outcome.

Identifiers

PMID26279712
PMCPMC4514488

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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.