Evidence map›Paper›PMID 23904450›Full record

ArticleJournal of neurointerventional surgery2014

Human placenta as an ex vivo vascular model for neurointerventional research.

John Ching Kwong Kwok, Wei Huang, Wing-Cheong Leung, Siu-Ki Chan, Kwong-Yau Chan, Kar-Ming Leung, Alberto Chi Ho Chu, Alexander Kar Ngai Lam

Open access · bronzeAbstract read
In one paragraph

Article in Journal of neurointerventional surgery, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 19% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. The role of simulation in neurosurgery.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2016
    Pooled it
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  9. A Review of the Advancements in theFrontiers in medical technology · 2022
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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 2 institutions in 2 countries.

John Ching Kwong KwokDepartment of Neurosurgery, Kwong Wah Hospital, Kowloon, Hong Kong.
Wei Huang
Wing-Cheong Leung
Siu-Ki Chan
Kwong-Yau Chan
Kar-Ming Leung
Alberto Chi Ho Chu
Alexander Kar Ngai Lam
Kwong Wah Hospital · CNHong Kong University of Science and Technology · HK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHuman placenta is a convenient resource for biomedical research, and has not yet been used for neurointerventional surgery research.

objectiveOur objective was to explore the feasibility of using human placenta to test various endovascular interventions and for training.

design18 placentas soon after delivery were prepared for six pilot studies. (1) Study on anatomical similarity to human cerebral vessel. (2) Simulation of stent assisted coiling and flow diversion on an aneurysm model. (3) Simulation of intra-arterial thrombolysis. (4) Simulation of embolization of arteriovenous malformation with glues. (5) Simulation of mechanical thrombolysis and comparison of different devices. (6) Vascular model for training of neurointerventionalists.

resultsWhen the chorionic plate vessels were compared with the cerebral cortical vessels, similarities were found in vascular branch patterns, histological cross sections, and angiographic appearances. Due to the semitransparency of its vessel wall, performance of flow diverter and stent assisted coiling of an aneurysm could be visualized under direct microscopic observation. Similarly, timing of clot lysis and glue polymerization could be estimated. Endothelial change after thrombectomy could be assessed by histological methods. From these pilot studies, the placenta model could be adopted to simulate various clinical situations. It is also ideal for interventional radiology training.

conclusionsIt is feasible to adopt the human placenta as an ex vivo vascular model in neurointerventional surgery research due to the fact that its vessels resemble the brain vasculature.

Indexed as

Biomedical ResearchEmbolization, TherapeuticFeasibility StudiesFemaleHumansModels, AnatomicNeurosurgeryPilot ProjectsPlacentaPregnancyThrombectomyAngiographyArteryInterventionThrombectomyThrombolysis

Identifiers

PMID23904450
PMCPMC4033111
OpenAlexW2127619769

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.