Evidence map›Paper›PMID 36352367›Full record

ArticleBMC neurology2022

Central hypersomnia and chronic insomnia: expanding the spectrum of sleep disorders in long COVID syndrome - a prospective cohort study.

Alissa Elen Formiga Moura, Danilo Nunes Oliveira, Danielle Mesquista Torres, José Wagner Leonel Tavares-Júnior, Paulo Ribeiro Nóbrega, Pedro Braga-Neto, Manoel Alves Sobreira-Neto

Open access · goldAbstract read
In one paragraph

Article in BMC neurology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 3 pooled it
4.6field-weighted citation impact, top 4% 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

27 citing papers in PubMed, 3 syntheses or guidelines pooled it, 39 citations in OpenAlex.

  1. Effect of interventions for the management of sleep disturbances in patients with long COVID: a systematic review and meta-analysis of randomized controlled trials.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2025
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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

7 authors at 2 institutions in 1 country.

Alissa Elen Formiga Moura *Hospital Universitário Walter Cantídio, Neurology Service, Universidade Federal do Ceará, Fortaleza, Brazil.
Danilo Nunes Oliveira *Hospital Universitário Walter Cantídio, Neurology Service, Universidade Federal do Ceará, Fortaleza, Brazil.
Danielle Mesquista TorresHospital Universitário Walter Cantídio, Neurology Service, Universidade Federal do Ceará, Fortaleza, Brazil.
José Wagner Leonel Tavares-JúniorHospital Universitário Walter Cantídio, Neurology Service, Universidade Federal do Ceará, Fortaleza, Brazil.
Paulo Ribeiro NóbregaHospital Universitário Walter Cantídio, Neurology Service, Universidade Federal do Ceará, Fortaleza, Brazil.
Pedro Braga-NetoHospital Universitário Walter Cantídio, Neurology Service, Universidade Federal do Ceará, Fortaleza, Brazil. pbraganeto@ufc.br.
Manoel Alves Sobreira-NetoHospital Universitário Walter Cantídio, Neurology Service, Universidade Federal do Ceará, Fortaleza, Brazil.
Universidade Federal do Ceará · BRHospital Universitário Walter Cantídio · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionLong-onset COVID syndrome has been described in patients with COVID-19 infection with persistence of symptoms or development of sequelae beyond 4 weeks after the onset of acute symptoms, a medium- and long-term consequence of COVID-19. This syndrome can affect up to 32% of affected individuals, with symptoms of fatigue, dyspnea, chest pain, cognitive disorders, insomnia, and psychiatric disorders. The present study aimed to characterize and evaluate the prevalence of sleep symptoms in patients with long COVID syndrome. METHODOLOGY: A total of 207 patients with post-COVID symptoms were evaluated through clinical evaluation with a neurologist and specific exams in the subgroup complaining of excessive sleepiness.

resultsAmong 189 patients included in the long COVID sample, 48 (25.3%) had sleep-related symptoms. Insomnia was reported by 42 patients (22.2%), and excessive sleepiness (ES) was reported by 6 patients (3.17%). Four patients with ES were evaluated with polysomnography and test, multiple sleep latencies test, and actigraphic data. Two patients had a diagnosis of central hypersomnia, and one had narcolepsy. A history of steroid use was related to sleep complaints (insomnia and excessive sleepiness), whereas depression was related to excessive sleepiness. We observed a high prevalence of cognitive complaints in these patients.

conclusionComplaints related to sleep, such as insomnia and excessive sleepiness, seem to be part of the clinical post-acute syndrome (long COVID syndrome), composing part of its clinical spectrum, relating to some clinical data.

Indexed as

COVID-19Disorders of Excessive SomnolenceSleep Initiation and Maintenance DisordersSleep Wake DisordersHumansPost-Acute COVID-19 SyndromeProspective StudiesSleepinessSyndromeHypersomniaLong-COVIDNarcolepsySleep

Identifiers

PMID36352367
PMCPMC9643986
OpenAlexW4308730763

What OpenQuestion holds

Textmetadata
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.