Evidence map›Paper›PMID 30059288›Full record

ArticleCanadian Urological Association journal = Journal de l'Association des urologues du Canada2019

Classification tree for the prediction of malignant disease and the prediction of non-diagnostic biopsies in patients with small renal masses.

Michael Organ, Landan P MacDonald, Michael A S Jewett, Henry Ajzenberg, Ashraf Almatar, Mohamed Abdolell, Matthew R Acker, Ricardo Rendon

Open access · diamondAbstract read
In one paragraph

Article in Canadian Urological Association journal = Journal de l'Association des urologues du Canada, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.4field-weighted citation impact, top 35% 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

3 citing papers in PubMed, 4 citations in OpenAlex.

  1. Article
  2. Identification of tumor size as the only factor associated with nondiagnostic biopsies in patients with small renal masses.Canadian Urological Association journal = Journal de l'Association des urologues du Canada · 2020
    Article
  3. Kidney Cancer Research Network of Canada (KCRNC) consensus statement on the role of renal mass biopsy in the management of kidney cancer.Canadian Urological Association journal = Journal de l'Association des urologues du Canada · 2019
    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

8 authors at 5 institutions in 2 countries.

Michael OrganDepartment of Urology, Memorial University, St. John's, NL, Canada.
Landan P MacDonaldSchool of Medicine, Dalhousie University, Saint John, NB, Canada.
Michael A S JewettDepartments of Surgery (Urology) and Surgical Oncology, Princess Margaret Cancer Centre, University Health Network and University of Toronto, Toronto, ON, Canada.
Henry AjzenbergSchool of Medicine, Queen's University, Kingston, ON, Canada.
Ashraf AlmatarDepartment of Urology, King Fahad Specialist Hospital-Dammam, Dammam, Saudi Arabia.
Mohamed AbdolellDepartment of Diagnostic Radiology, Dalhousie University, Halifax, NS, Canada.
Matthew R AckerDepartment of Urology, Dalhousie University, Saint John, NB, Canada.
Ricardo RendonDepartment of Urology, Dalhousie University, Halifax, NS, Canada.
Dalhousie University · CAKing Fahad Specialist Hospital · SAMemorial University of Newfoundland · CAQueen's University · CAUniversity of Toronto · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionPreoperative prediction of benign vs. malignant small renal masses (SRMs) remains a challenge. This study: 1) validates our previously published classification tree (CT) with an external cohort; 2) creates a new CT with the combined cohort; and 3) evaluates the RENAL and PADUA scoring systems for prediction of malignancy.

methodsThis study includes a total of 818 patients with renal masses; 395 underwent surgical resection and 423 underwent biopsy. A CT to predict benign disease was developed using patient and tumour characteristics from the 709 eligible participants. Our CT is based on four parameters: tumour volume, symptoms, gender, and symptomatology. CART modelling was also used to determine if RENAL and PADUA scoring could predict malignancy.

resultsWhen externally validated with the surgical cohort, the predictive accuracy of the old CT dropped. However, by combining the cohorts and creating a new CT, the predictive accuracy increased from 74% to 87% (95% confidence interval 0.84-0.89). RENAL and PADUA score alone were not predictive of malignancy. One limitation was the lack of available histological data from the biopsy series.

conclusionsThe validated old CT and new combined-cohort CT have a predictive value greater than currently published nomograms and single-biopsy cohorts. Overall, RENAL and PADUA scores were not able to predict malignancy.

Identifiers

PMID30059288
PMCPMC6456341
OpenAlexW2883344392

What OpenQuestion holds

Textmetadata
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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.