Evidence map›Paper›PMID 36517084›Full record

ArticleCancer reports (Hoboken, N.J.)2023

Evaluating the impact of early identification of asymptomatic brain metastases in metastatic renal cell carcinoma.

Ambica Parmar, Sunita Ghosh, Arjun Sahgal, Aly-Khan A Lalani, Aaron R Hansen, M Neil Reaume, Lori Wood, Naveen S Basappa, Daniel Y C Heng, Jeffrey Graham and 7 more

Open access · goldFull text read
In one paragraph

Article in Cancer reports (Hoboken, N.J.), 2023. 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
0.8field-weighted citation impact, top 27% 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, 6 citations in OpenAlex.

  1. Article
  2. Article
  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

17 authors at 11 institutions in 1 country.

Ambica ParmarOdette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.ORCID 0000-0002-0597-3843
Sunita GhoshCross Cancer Institute, University of Alberta, Edmonton, Alberta, Canada.
Arjun SahgalOdette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.
Aly-Khan A LalaniJuravinski Cancer Centre, McMaster University, Hamilton, Ontario, Canada.
Aaron R HansenPrincess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada.
M Neil ReaumeOttawa Hospital Cancer Centre, Ottawa, Ontario, Canada.
Lori WoodDalhousie University, Halifax, Nova Scotia, Canada.
Naveen S BasappaCross Cancer Institute, University of Alberta, Edmonton, Alberta, Canada.
Daniel Y C HengTom Baker Cancer Centre, University of Calgary, Calgary, Alberta, Canada.
Jeffrey GrahamUnversity of Manitoba, Winnipeg, Manitoba, Canada.
Christian KollmannsbergerBC Cancer - Vancouver Centre, Vancouver, British Columbia, Canada.
Denis SoulièresCentre Hospitalier de l'Université de Montréal, Montréal, QC, Canada.
Rodney H BreauOttawa Hospital Cancer Centre, Ottawa, Ontario, Canada.
Simon TanguayMcGill University, Montréal, QC, Canada.
Anil KapoorJuravinski Cancer Centre, McMaster University, Hamilton, Ontario, Canada.
Frédéric PouliotCancer Research Center, Centre Hospitalier Universitaire de Québec - Université Laval, Québec City, QC, Canada.
Georg A BjarnasonOdette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.
Sunnybrook Health Science Centre · CAJuravinski Cancer Centre · CAOttawa Hospital · CAUniversity of Alberta · CACentre Hospitalier de l’Université de Montréal · CACentre hospitalier universitaire de Québec · CADalhousie University · CAMcGill University · CAResearch Manitoba · CAUniversity Health Network · CAUniversity of Calgary · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBrain metastases (BM) in metastatic renal cell carcinoma (mRCC) have been reported to be present in up to 25% of patients diagnosed with mRCC. There is limited published literature evaluating the role of routine intra-cranial imaging for the screening of asymptomatic BM in mRCC.

aimsTo evaluate the potential utility of routine intra-cranial imaging, a retrospective cohort study was conducted to characterize the outcomes of mRCC patients who presented with asymptomatic BM, as compared to symptomatic BM. METHODS AND

resultsThe Canadian Kidney Cancer Information System (CKCis) database was used to identify mRCC patients diagnosed with BM. This cohort was divided into two groups based on the presence or absence of BM symptoms. Details regarding patient demographics, disease characteristics, systemic treatments, BM characteristics and survival outcomes were extracted. Statistical analysis was through chi-square tests, analysis of variance, and Kaplan-Meier method to characterize survival outcomes. A p-value of <0.05 was considered statistically significant for all analyses. A total of 267 mRCC patients with BM were identified of which 106 (40%) presented with asymptomatic disease. The majority of patients presented with multiple (i.e., >1) BM (75%) with no significant differences noted in number of BM or BM-directed therapy received in symptomatic, as compared to asymptomatic BM patients. Median [95% confidence interval (CI)] overall survival (OS) from mRCC diagnosis was 42 months (95% CI: 32-62) for patients with asymptomatic BM, and 39 months (95% CI: 29-48) with symptomatic BM (p = 0.10). OS from time of BM diagnosis was 28 months (95% CI: 18-42) for the asymptomatic BM group, as compared to 13 months (95% CI: 10-21) in the symptomatic BM group (p = 0.04).

conclusionsGiven a substantial proportion of patients may present with asymptomatic BM, limiting intra-cranial imaging to patients with symptomatic BM, may be associated with a missed opportunity for timely diagnosis and treatment. The utility of routine intra-cranial imaging in patients with renal cell carcinoma, warrants further prospective evaluation.

Indexed as

Brain NeoplasmsCarcinoma, Renal CellKidney NeoplasmsCanadaHumansRetrospective Studiesbrain metastasesimagingradiation therapyrenal cell carcinomasurveillance

Identifiers

PMID36517084
PMCPMC10026314
OpenAlexW4311458830

What OpenQuestion holds

Textfull text, public
LicenceCC BY
measurements read47
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.