Evidence map›Paper›PMID 41473933›Full record

ArticleNeurology. Genetics2026

Characterization of Sleep in Alternating Hemiplegia of Childhood: An International Survey.

Francesco Fortunato, Umesh Vivekananda, Katherine Elizabeth Behl, Rosaria Vavassori, Ramona Cordani, Michela Stagnaro, Elisa De Grandis, Sanjay M Sisodiya, Simona Balestrini

Abstract read
In one paragraph

Article in Neurology. Genetics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. Article
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.

Francesco FortunatoResearch Department of Epilepsy, UCL Queen Square Institute of Neurology, University College London, United Kingdom.ORCID https://orcid.org/0000-0001-8395-7809
Umesh VivekanandaResearch Department of Epilepsy, UCL Queen Square Institute of Neurology, University College London, United Kingdom.ORCID https://orcid.org/0000-0001-6116-2335
Katherine Elizabeth BehlAlternating Hemiplegia of Childhood UK, London, United Kingdom.ORCID https://orcid.org/0009-0005-9020-0384
Rosaria VavassoriEuro Mediterranean Institute of Science and Technology I.E.ME.S.T., Palermo, Italy.ORCID https://orcid.org/0000-0002-1598-0692
Ramona CordaniChild Neuropsychiatry Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy.ORCID https://orcid.org/0000-0002-7287-4159
Michela StagnaroChild Neuropsychiatry Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy.ORCID https://orcid.org/0000-0002-7041-2858
Elisa De GrandisChild Neuropsychiatry Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy.ORCID https://orcid.org/0000-0002-9733-9216
Sanjay M SisodiyaResearch Department of Epilepsy, UCL Queen Square Institute of Neurology, University College London, United Kingdom.ORCID https://orcid.org/0000-0002-1511-5893
Simona BalestriniResearch Department of Epilepsy, UCL Queen Square Institute of Neurology, University College London, United Kingdom.ORCID https://orcid.org/0000-0001-5639-1969

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background and Objectives: Few studies have investigated sleep features in people with alternating hemiplegia of childhood (AHC). In this study, we present a bespoke survey of individuals with AHC to characterize sleep disturbances in this condition. Methods: A cross-sectional survey was disseminated through the UK and Italian AHC family associations, addressing their registered families with at least 1 child or adult with a confirmed diagnosis of AHC by their national reference centers and who had consented to be contacted by email. The entire questionnaire implemented in the online surveys was organized into 3 main sections and included the Pittsburgh Sleep Quality Index (PSQI) scale. This scale ranges from 0 to 21, with higher scores indicating poorer sleep quality. Internal consistency of the questionnaire was assessed using Cronbach alpha statistic. Results: Forty-eight of 54 families with AHC (88.89%) filled out at least 1 item of the AHC-Sleep Questionnaire, and 36 of 54 (66.67%) completed the whole questionnaire. Eighteen of 44 people (40.91%) from our cohort reported having a problem with sleep, which was persistent for 10 of 44 (22.7%). Twenty-five of 44 people (56.82%) reported multiple arousals during a typical night, and for 9 of 25 (36%), these could be very prolonged. For 16 of 40 (40%) and 19 of 40 (47.5%), plegic spells resolved or improved, respectively, during sleep, whereas 5 of 40 (12.5%) reported no effect of sleep on these spells. The mean global PSQI score in 40 people was 5.40 (SD ± 4.69). Fifteen of 40 individuals (37.5%) had a global PSQI score ≥5. PSQI scores were significantly higher in those individuals who completed the questionnaire during summer (n = 6) compared with those who completed them during winter (n = 33) ( Discussion: We dissected sleep issues and reported sleep disruption, including elevated global PSQI scores, in a significant proportion of individuals with AHC. The main implication of this study is the importance of conducting comprehensive and regular assessments of sleep in both children and adults with AHC.

Identifiers

PMID41473933
PMCPMC12746614

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LicenceCC BY-NC-ND
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Registered trials

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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.