Evidence map›Paper›PMID 33146037›Full record

Observational studyCephalalgia : an international journal of headache2020

Phenotypic characterization of acute headache attributed to SARS-CoV-2: An ICHD-3 validation study on 106 hospitalized patients.

Javier Trigo López, David García-Azorín, Álvaro Planchuelo-Gómez, Cristina García-Iglesias, Carlos Dueñas-Gutiérrez, Ángel L Guerrero

Registry-linked trialAbstract readObservational StudyValidation Study
In one paragraph

Observational study in Cephalalgia : an international journal of headache, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05704335 (INFLUENCEF STUDY), which is not on this map. Cited by 36 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 4 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.

NCT05704335 unknown statusnot on this mapstarted 2022, after this paper: background citation

INFLUENCEF STUDY: Epidemiology, Risk Factors and Clinical Phenotype of Headache Associated With Influenza Infection

TypeobservationalSponsorHospital Clínico Universitario de ValladolidRan2022 to 2024Enrolled100ConditionsHeadache Disorders, Influenza -Like Illness, Head Pain, MigraineArmsQuestionnaire administration
3 · Its place in the literature

Who cites it

36 citing papers in PubMed, 4 syntheses or guidelines pooled it.

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  13. [Subtle and subclinical neurological findings in patients with SARS-CoV-2].Revista medica del Instituto Mexicano del Seguro Social · 2023
    Observational
  14. Headache in COVID-19 and Long COVID: to Know Facts for Clinical Practice.Current neurology and neuroscience reports · 2023
    Review
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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

6 authors.

Javier Trigo LópezHeadache Unit, Department of Neurology, Hospital Clínico Universitario de Valladolid, Valladolid, Spain.ORCID 0000-0003-1310-3386
David García-AzorínHeadache Unit, Department of Neurology, Hospital Clínico Universitario de Valladolid, Valladolid, Spain.ORCID 0000-0002-3132-1064
Álvaro Planchuelo-GómezImaging Processing Laboratory, Universidad de Valladolid, Valladolid, Spain.ORCID 0000-0002-2188-4197
Cristina García-IglesiasImaging Processing Laboratory, Universidad de Valladolid, Valladolid, Spain.
Carlos Dueñas-GutiérrezDepartment of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid, Spain.
Ángel L GuerreroHeadache Unit, Department of Neurology, Hospital Clínico Universitario de Valladolid, Valladolid, Spain.ORCID 0000-0001-7493-6002

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionHeadache is a common symptom of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. In this study, we aimed to characterize the phenotype of headache attributed to SARS-CoV-2 infection and to test the International Classification of Headache Disorders (ICHD-3) phenotypic criteria for migraine and tension-type headache.

methodsThe study design was a cross-sectional study nested in a cohort. We screened all consecutive patients that were hospitalized and had a positive SARS-CoV-2 test. We included patients that described headache if the headache was not better explained by another ICHD-3 diagnosis. Patients were interviewed by two neurologists.

resultsWe screened 580 patients and included 130 (mean age 56 years, 64% female). Headache was the first symptom of the infection in 26% of patients and appeared within 24 hours in 62% of patients. The headache was bilateral in 85%, frontal in 83%, and with pressing quality in 75% of patients. Mean intensity was 7.1, being severe in 64%. Hypersensitivity to stimuli occurred in 57% of patients. ICHD-3 criteria for headache attributed to systemic viral infection were fulfilled by 94% of patients; phenotypic criteria for migraine were fulfilled by 25% of patients, and tension-type headache criteria by 54% of patients.

conclusionHeadache attributed to SARS-CoV-2 infection in hospitalized patients has severe intensity, frontal predominance and oppressive quality. It occurs early in the course of the disease. Most patients fulfilled ICHD-3 criteria for headache attributed to systemic viral infection; however, the phenotype might resemble migraine in a quarter of cases and tension-type headache in half of the patients.

Indexed as

AdultAgedBetacoronavirusCoronavirus InfectionsCOVID-19Cross-Sectional StudiesFemaleHeadacheHumansInternational Classification of DiseasesMaleMiddle AgedPandemicsPhenotypePneumonia, ViralSARS-CoV-2COVID-19headache disordersmigraine disordersnervous system diseasessecondarytension-type headache

Identifiers

PMID33146037
PMCPMC7645601

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Registered trials

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.