Evidence map›Paper›PMID 33479080›Full record

ArticleClinical medicine (London, England)2021

Hub-and-spoke model for thrombectomy service in UK NHS practice.

Liqun Zhang, Ayokunle Ogungbemi, Sarah Trippier, Brian Clarke, Usman Khan, Claire Hall, Qiuhong Ji, Andrew Clifton, Gillian Cluckie

Abstract read
In one paragraph

Article in Clinical medicine (London, England), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

14 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
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  5. Impact of atrial fibrillation on outcomes in stroke patients with tandem occlusions treated with thrombectomy: A multicentre study.International journal of stroke : official journal of the International Stroke Society · 2025
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  6. Observational
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  11. Observational
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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

9 authors.

Liqun ZhangSt George's University Hospital NHS Foundation Trust, London, UK liqun.zhang@stgeorges.nhs.uk.
Ayokunle OgungbemiSt George's University Hospital NHS Foundation Trust, London, UK.
Sarah TrippierSt George's University Hospital NHS Foundation Trust, London, UK.
Brian ClarkeSt George's University Hospital NHS Foundation Trust, London, UK.
Usman KhanSt George's University Hospital NHS Foundation Trust, London, UK.
Claire HallSouth East Coast Ambulance Service NHS Foundation Trust, Crawley, UK.
Qiuhong JiThe Affiliated Hospital of Nantong University, Nantong, China.
Andrew CliftonSt George's University Hospital NHS Foundation Trust, London, UK.
Gillian CluckieSt George's University Hospital NHS Foundation Trust, London, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mechanical thrombectomy is a highly effective but time dependent treatment for acute ischaemic stroke due to large vessel occlusion. In the UK, the national clinical guidelines for stroke and National Institute for Health and Care Excellence guidance endorses thrombectomy as an acute stroke treatment, and NHS England commissioned thrombectomy services. However, there are no UK 'real-world' data to verify the efficacy of the hub-and-spoke model in thrombectomy. There are currently 24 tertiary neuroscience centres in the UK that can provide thrombectomy treatment and many of these operate only within working hours. This study is the first to demonstrate that a hub-and-spoke thrombectomy service in routine UK 24/7 clinical practice is as effective and safe as in the setting of randomised controlled clinical trials. However, there are 9.3% of patients accepted for transfer to the thrombectomy centre who did not proceed to thrombectomy, mostly due to delays. Fifty-three per cent of thrombectomy cases were performed outside of standard working hours when transfer delays were increased. A 24/7 thrombectomy service is needed to maximise the benefit to all suitable patients. Measures, including improving workflow and optimising work forces, are needed to minimise the delays and continue to improve the service.

Indexed as

Brain IschemiaStrokeEnglandHumansState MedicineThrombectomyTreatment OutcomeUnited Kingdomacute strokehub-and-spoke modellarge vessel occlusionthrombectomy

Identifiers

PMID33479080
PMCPMC7850178

What OpenQuestion holds

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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.