Evidence map›Paper›PMID 34988412›Full record

ArticleEClinicalMedicine2022

Factors correlated with the postoperative recurrence of chronic subdural hematoma: An umbrella study of systematic reviews and meta-analyses.

Fulei Zhu, Haifeng Wang, Wenchen Li, Shuai Han, Jiangyuan Yuan, Chunyun Zhang, Zean Li, Guangyan Fan, Xuanhui Liu, Meng Nie and 1 more

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in EClinicalMedicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 3 pooled it
4.0field-weighted citation impact, top 5% 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

33 citing papers in PubMed, 3 syntheses or guidelines pooled it, 52 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

11 authors at 3 institutions in 1 country.

Fulei ZhuDepartment of Neurosurgery of the First Clinical Hospital, Jilin University, Changchun, China.
Haifeng WangDepartment of Neurosurgery of the First Clinical Hospital, Jilin University, Changchun, China.
Wenchen LiDepartment of Neurosurgery of the First Clinical Hospital, Jilin University, Changchun, China.
Shuai HanDepartment of Neurosurgery of the First Clinical Hospital, Jilin University, Changchun, China.
Jiangyuan YuanDepartment of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China.
Chunyun ZhangDepartment of Neurosurgery of the First Clinical Hospital, Jilin University, Changchun, China.
Zean LiDepartment of Neurosurgery of the First Clinical Hospital, Jilin University, Changchun, China.
Guangyan FanDepartment of Neurosurgery of the First Clinical Hospital, Jilin University, Changchun, China.
Xuanhui LiuDepartment of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China.
Meng NieDepartment of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China.
Li BieDepartment of Neurosurgery of the First Clinical Hospital, Jilin University, Changchun, China.
First Hospital of Jilin University · CNJilin University · CNTianjin Medical University General Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChronic subdural hematoma (CSDH) is a common neurological disease, and the surgical evacuation of subdural collection remains the primary treatment approach for symptomatic patients. Postoperative recurrence is a serious complication, and several factors are correlated with postoperative recurrence.

methodsWe searched Embase, Web of Science, PubMed, and Cochrane Library from their establishment to September 2020. Reports on randomized, prospective, retrospective, and overall observational studies on the management of surgical patients with CSDH were searched, and an independent reviewer performed research quality assessment. Factors that affect the postoperative recurrence of CSDH were extracted: social demographics, drugs (as the main or auxiliary treatment), surgical management, imaging, and other risk factors. We evaluated the recurrence rate of each risk factor. A random effect model was used to perform a meta-analysis, and each risk factor affecting the postoperative recurrence of CSDH was then evaluated and graded.

findingsIn total, 402 studies were included in this analysis and 32 potential risk factors were evaluated. Among these, 21 were significantly associated with the postoperative recurrence of CSDH. Three risk factors (male, bilateral hematoma, and no drainage) had convincing evidence. The classification of evidence can help clinicians identify significant risk factors for the postoperative recurrence of CSDH.

interpretationOnly few associations were supported by high-quality evidence. Factors with high-quality evidence may be important for treating and preventing CSDH recurrence. Our results can be used as a basis for improving clinical treatment strategies and designing preventive methods.

fundingNo funding was received.

Indexed as

Chronic subdural hematomaMeta-analysesRecurrenceRisk factorsUmbrella review

Identifiers

PMID34988412
PMCPMC8703229
OpenAlexW4200521734

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.