Evidence map›Paper›PMID 27267581›Full record

SynthesisUrologic oncology2016

High rates of venous thromboembolic events in patients undergoing systemic therapy for urothelial carcinoma: A systematic review and meta-analysis.

Ajay Gopalakrishna, Thomas A Longo, Joseph J Fantony, Uma Doshi, Michael R Harrison, Megan Van Noord, Brant A Inman

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Urologic oncology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.8field-weighted citation impact, top 25% 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

4 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
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

7 authors at 2 institutions in 1 country.

Ajay GopalakrishnaDivision of Urology, Duke University Medical Center, Durham, NC.
Thomas A LongoDivision of Medical Oncology, Duke University Medical Center, Durham, NC.
Joseph J FantonyDivision of Urology, Duke University Medical Center, Durham, NC.
Uma DoshiDivision of Urology, Duke University Medical Center, Durham, NC.
Michael R HarrisonDivision of Medical Oncology, Duke University Medical Center, Durham, NC.
Megan Van NoordResearch and Education Services, Duke University Medical Center, Durham, NC.
Brant A InmanDivision of Urology, Duke University Medical Center, Durham, NC. Electronic address: brant.inman@duke.edu.
Duke Medical Center · USDuke University · US

Funding

Duke CTSA (Composite)TL1TR001116 · NCATS · DUKE UNIVERSITY · PI BOULWARE, LEIGH E, KRAFT, MONICA · 2013 to 2017
$1.2M
Duke CTSAKL2TR000437 · NCATS · DUKE UNIVERSITY · PI CALIFF, ROBERT M · 2012 to 2012
$180k
NCATS NIH HHS KL2 TR000437NCATS NIH HHS TL1 TR001116
6 · The paper itself

Abstract

backgroundPatients undergoing systemic therapy for urothelial carcinoma (UC) are at increased risk for venous thromboembolic (VTE) events. The objective of the current study was to determine the rate of VTE events in patients undergoing systemic therapy for UC and assess factors affecting this rate.

methodsThis study was registered with the PROSPERO database (CRD42015025774). We searched Pubmed, MEDLINE, EMBASE, The Cochrane Library, CINAHL, and Web of Science libraries through August 2014. As per PRISMA guidelines, 2 reviewers independently reviewed titles and abstracts. Disagreements were arbitrated by a third reviewer. After full text review, data were abstracted and pooled using a random effects model. Authors were contacted for clarification of data. To determine VTE risk factors, subgroup analyses and meta-regression were conducted.

resultsWe identified 3,635 publications in the initial search, of which 410 met inclusion criteria for full text review. Of these, we were able to obtain data on the outcome of interest for 62 publications. A total of 5,082 patients, of which 77% were male, underwent systemic therapy for UC, with 373 VTE events. The proportion of patients who had had prior surgery, chemotherapy, or radiation was 55%, 25%, and 9%, respectively. Fixed effects and random effects models were used to estimate the VTE rate, yielding event rates of 6.7% and 5.4%, respectively.

conclusionsVTE occurs frequently in patients undergoing systemic therapy for UC. The VTE rate was affected by the country of origin, history of radiation, as well as by the systemic treatment class. The study was limited by the incomplete reporting of all variables of interest.

Indexed as

Carcinoma, Transitional CellHumansRisk FactorsUrologic NeoplasmsVenous ThromboembolismVenous ThrombosisBladder cancerChemotherapyDeep venous thrombosisEmbolismPulmonarySystemic therapyUrothelial carcinomaVenous thromboembolism

Identifiers

PMID27267581
PMCPMC4996725
OpenAlexW2414684966

What OpenQuestion holds

Textmetadata
LicenceTDM
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.