Evidence map›Paper›PMID 31232977›Full record

SynthesisMedicine2019

Factors associated with postoperative outcomes in patients with intramedullary Grade II ependymomas: A Systematic review and meta-analysis.

Xiang-Yao Sun, Wei Wang, Tong-Tong Zhang, Chao Kong, Si-Yuan Sun, Ma-Chao Guo, Jun-Zhe Ding, Shi-Bao Lu

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.1field-weighted citation impact, top 20% 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

5 citing papers in PubMed, 10 citations in OpenAlex.

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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 3 institutions in 2 countries.

Xiang-Yao SunDepartment of Orthopedics, Xuanwu Hospital Capital Medical University.
Wei WangDepartment of Orthopedics, Xuanwu Hospital Capital Medical University.
Tong-Tong ZhangDepartment of Orthopedics, Xuanwu Hospital Capital Medical University.
Chao KongDepartment of Orthopedics, Xuanwu Hospital Capital Medical University.
Si-Yuan SunDepartment of Orthopedics, Xuanwu Hospital Capital Medical University.
Ma-Chao GuoDepartment of Orthopedics, Xuanwu Hospital Capital Medical University.
Jun-Zhe DingDepartment of Orthopedics, Xuanwu Hospital Capital Medical University.
Shi-Bao LuDepartment of Orthopedics, Xuanwu Hospital Capital Medical University.
Capital Medical University · CNCapital University · USNational Clinical Research · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMost of the previous studies combined all types of intramedullary ependymomas without providing accurate pathological subtypes. In addition, it was very difficult to evaluate the factors associated with postoperative outcomes of patients with different pathological subtypes of intramedullary Grade II ependymomas by traditional meta-analysis. This study evaluated the factors related with postoperative outcomes of patients with intramedullary Grade II ependymomas.

methodsIndividual patient data analysis was performed using PubMed, Embase, and the Cochrane Central Register of Controlled Trials. The search included articles published up to April 2018 with no lower date limit on the search results. The topics were intramedullary Grade II ependymomas. Progression-free survival (PFS) and overall survival (OS) were analyzed by Kaplan-Meier survival analysis (log-rank test). The level of significance was set at P < .05.

resultsA total of 21 studies with 70 patients were included in this article. PFS of patients who underwent total resection was much longer than the PFS of those who received subtotal resection (P < .001). Patients who received adjuvant therapy (P = .005) or radiotherapy and chemotherapy (P < .001) seemed to have shorter PFS than others; PFS of patients who had cerebrospinal fluid disease dissemination (P = .022) or scoliosis (P = .001) were significantly shorter than others. OS of cellular ependymoma patients was less than giant cell ependymoma patients (P < .001).

conclusionsPFS of patients who received total resection was much longer than those who received subtotal resection. Patients treated with adjuvant therapy or radiotherapy and chemotherapy appeared to have shorter PFS than others; PFS of patients with cerebrospinal fluid disease dissemination or scoliosis were significantly shorter than others. Cellular ependymomas would have better OS than giant cell ependymoma. However, giant cell ependymoma patients might have the worst OS.

Indexed as

Treatment OutcomeAdultEpendymomaFemaleHumansMaleMiddle AgedPostoperative ComplicationsSpinal Cord NeoplasmsSurvival Analysis

Identifiers

PMID31232977
PMCPMC6637017
OpenAlexW3003891111

What OpenQuestion holds

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LicenceCC BY
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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.