Evidence map›Paper›PMID 35833226›Full record

ArticleCephalalgia : an international journal of headache2022

COVID-19 vaccination-triggered cluster headache episodes with frequent attacks.

Roemer B Brandt, Rosa-Lin H Ouwehand, Michel D Ferrari, Joost Haan, Rolf Fronczek

Open access · hybridAbstract read
In one paragraph

Article in Cephalalgia : an international journal of headache, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.1field-weighted citation impact, top 21% 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

7 citing papers in PubMed, 9 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Health equity, care access and quality in headache - part 1.The journal of headache and pain · 2024
    Review
  5. Article
  6. Article
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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

5 authors at 1 institution in 1 country.

Roemer B BrandtDepartment of Neurology, Leiden University Medical Centre (LUMC), Leiden, The Netherlands.ORCID 0000-0002-2932-4872
Rosa-Lin H OuwehandDepartment of Neurology, Leiden University Medical Centre (LUMC), Leiden, The Netherlands.
Michel D FerrariDepartment of Neurology, Leiden University Medical Centre (LUMC), Leiden, The Netherlands.
Joost HaanDepartment of Neurology, Leiden University Medical Centre (LUMC), Leiden, The Netherlands.
Rolf FronczekDepartment of Neurology, Leiden University Medical Centre (LUMC), Leiden, The Netherlands.
Leiden University Medical Center · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe pathophysiology of cluster headache and how cluster episodes are triggered, are still poorly understood. Recurrent inflammation of the trigeminovascular system has been hypothesized. It was noted that some long-term attack-free cluster headache patients suddenly developed a new cluster episode shortly after COVID-19 vaccination.

methodsCases are described from patients with cluster headache who reported a new cluster episode within days after COVID-19 vaccination. All cases were seen in a tertiary university referral center and a general hospital in the Netherlands between March 2021 and December 2021, when the first COVID-19 vaccinations were carried out in The Netherlands. Clinical characteristics of the previous and new cluster episodes, and time between the onset of a new cluster episode and a previous COVID-19 vaccination were reported.

resultsWe report seven patients with cluster headache, who had been attack-free for a long time, in whom a new cluster episode occurred within a few days after a COVID-19 vaccination.

interpretationCOVID-19 vaccinations may trigger new cluster episodes in patients with cluster headache, possibly by activating a pro-inflammatory state of the trigeminocervical complex. COVID-19 vaccinations may also exacerbate other neuroinflammatory conditions. .

Indexed as

Cluster HeadacheCOVID-19COVID-19 VaccinesHumansNetherlandsVaccinationCOVID-19 VaccinesCluster headacheCOVID-19 vaccinationheadache

Identifiers

PMID35833226
PMCPMC9638705
OpenAlexW4285394517

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.