Evidence map›Paper›PMID 31919125›Full record

ArticleBMJ open2020

Risk of venous thromboembolism in patients undergoing gastric cancer surgery: protocol for a systematic review and meta-analysis.

Dengfeng Wang, Yang Yu, Pengxian Tao, Dan Wang, Yajing Chen, Hao Chen

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
0.5field-weighted citation impact, top 31% 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, 1 synthesis or guideline pooled it, 6 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. 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

6 authors at 1 institution in 1 country.

Dengfeng Wang *Department of Tumor Surgery, Lanzhou University Second Hospital, Lanzhou, China.
Yang Yu *Department of Tumor Surgery, Lanzhou University Second Hospital, Lanzhou, China.ORCID 0000-0002-2409-3681
Pengxian TaoDepartment of Tumor Surgery, Lanzhou University Second Hospital, Lanzhou, China.
Dan WangDepartment of Tumor Surgery, Lanzhou University Second Hospital, Lanzhou, China.
Yajing ChenDepartment of Tumor Surgery, Lanzhou University Second Hospital, Lanzhou, China.
Hao ChenDepartment of Tumor Surgery, Lanzhou University Second Hospital, Lanzhou, China ery_chenh@lzu.edu.cn.
Lanzhou University Second Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionVenous thromboembolism (VTE) is a serious life-threatening complication in patients with gastric cancer. Abnormal coagulation function and tumour-related treatment may contribute to the occurrence of VTE. Many guidelines considered that surgical treatment would put patients with cancer at high risk of VTE, so positive prevention is needed. However, there are no studies that have systematically reviewed the postoperative risk and distribution of VTE in patients with gastric cancer. We thus conduct this systematic review to determine the risk of VTE in patients with gastric cancer undergoing surgery and provide some evidence for clinical decision-making. METHODS AND ANALYSIS: Studies reporting the incidence of VTE after gastric cancer surgery will be included. Primary studies of randomised controlled trials, cohort studies, population-based surveys and cross-sectional studies are eligible for this review and only studies published in Chinese and English will be included. We will search the Medline, Embase, Web of Science, CBM, CNKI and Wanfang data from their inception to November 2019. Two reviewers will independently select studies and extract data. The quality of each included study will be assessed with tools corresponding to their study design. Meta-analysis will be used to pool the incidence data from included studies. Heterogeneity of the estimates across studies will be assessed, if necessary, a subgroup analysis will be performed to explore the source of heterogeneity. The Grades of Recommendation, Assessment, Development and Evaluation method is applied to assess the level of evidence obtained from this systematic review. ETHICS AND DISSEMINATION: This proposed systematic review and meta-analysis is based on published data, and thus ethical approval is not required. The results of this review will be sought for publication. PROSPERO REGISTRATION NUMBER: CRD42019144562.

Indexed as

AnticoagulantsGastrectomyRisk AssessmentStomach NeoplasmsVenous ThromboembolismHumansMeta-Analysis as TopicSystematic Reviews as TopicAnticoagulantsgastric cancergastrointestinal tumoursincidencesurgeryvenous thromboembolism

Identifiers

PMID31919125
PMCPMC6955495
OpenAlexW3000218715

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.