Evidence map›Paper›PMID 35483386›Full record

ReviewThe Lancet. Neurology2022

CDKL5 deficiency disorder: clinical features, diagnosis, and management.

Helen Leonard, Jenny Downs, Tim A Benke, Lindsay Swanson, Heather Olson, Scott Demarest

Open access · greenAbstract readReview
In one paragraph

Review in The Lancet. Neurology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 92 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
92citing papers in PubMed, 1 pooled it
23.4field-weighted citation impact, top 1% 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

92 citing papers in PubMed, 1 synthesis or guideline pooled it, 138 citations in OpenAlex.

  1. Variable expression ofProceedings of the National Academy of Sciences of the United States of America · 2024
    Pooled it
  2. Effects of ganaxolone on non-seizure outcomes in CDKL5 Deficiency Disorder: Double-blind placebo-controlled randomized trial.European journal of paediatric neurology : EJPN : official journal of the European Paediatric Neurology Society · 2024
    Trial
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  7. Sex- and experience-dependent regulation of synaptic protein turnover.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
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  17. From QI-disability to QID-12: creating a brief proxy-report measure of quality of life for children with intellectual disability.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2026
    Article
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32 more citing papers are in PubMed but not listed here.

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 at 4 institutions in 2 countries.

Helen LeonardTelethon Kids Institute, The University of Western Australia, Perth, WA, Australia. Electronic address: helen.leonard@telethonkids.org.au.
Jenny DownsTelethon Kids Institute, The University of Western Australia, Perth, WA, Australia; Curtin School of Allied Health, Curtin University, Perth, WA, Australia.
Tim A BenkeDepartment of Neurology, Children's Hospital Colorado, Aurora, CO, USA; Department of Pediatrics, University of Colorado at Denver, Aurora, CO, USA; Department of Pharmacology, University of Colorado at Denver, Aurora, CO, USA; Department of Neurology, University of Colorado at Denver, Aurora, CO, USA; Department of Otolaryngology, University of Colorado at Denver, Aurora, CO, USA.
Lindsay SwansonDepartment of Neurology, Boston Children's Hospital, Boston, MA, USA.
Heather OlsonDepartment of Neurology, Boston Children's Hospital, Boston, MA, USA.
Scott DemarestDepartment of Neurology, Children's Hospital Colorado, Aurora, CO, USA; Department of Pediatrics, University of Colorado at Denver, Aurora, CO, USA; Department of Neurology, University of Colorado at Denver, Aurora, CO, USA.
Boston Children's Hospital · USChildren's Hospital Colorado · USCurtin University · AUUniversity of Western Australia · AU

Funding

Training and Career Development ComponentU54HD061222 · NICHD · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI PERCY, ALAN KENNETH · 2009 to 2019
$12.4M
Genetic Analysis and Manipulation Core (GAEC)P50HD105351 · NICHD · BOSTON CHILDREN'S HOSPITAL · PI Hisashi Umemori · 2021 to 2026
$9.4M
Multi-Site Validation of Biomarkers and Core Clinical Outcome Measures for Clinical Trials Readiness in CDKL5 Deficiency DisorderU01NS114312 · NINDS · UNIVERSITY OF COLORADO DENVER · PI BENKE, TIMOTHY A, DOWNS, JENNY · 2021 to 2025
$4.7M
Diagnosis and Genotype-Phenotype Correlations in Early Life Epilepsy and CDKL5 DisorderK23NS107646 · NINDS · BOSTON CHILDREN'S HOSPITAL · PI OLSON, HEATHER ELISA · 2018 to 2023
$1.2M
NICHD NIH HHS P50 HD105351NICHD NIH HHS U54 HD061222NINDS NIH HHS K23 NS107646NINDS NIH HHS U01 NS114312
6 · The paper itself

Abstract

CDKL5 deficiency disorder (CDD) was first identified as a cause of human disease in 2004. Although initially considered a variant of Rett syndrome, CDD is now recognised as an independent disorder and classified as a developmental epileptic encephalopathy. It is characterised by early-onset (generally within the first 2 months of life) seizures that are usually refractory to polypharmacy. Development is severely impaired in patients with CDD, with only a quarter of girls and a smaller proportion of boys achieving independent walking; however, there is clinical variability, which is probably genetically determined. Gastrointestinal, sleep, and musculoskeletal problems are common in CDD, as in other developmental epileptic encephalopathies, but the prevalence of cerebral visual impairment appears higher in CDD. Clinicians diagnosing infants with CDD need to be familiar with the complexities of this disorder to provide appropriate counselling to the patients' families. Despite some benefit from ketogenic diets and vagal nerve stimulation, there has been little evidence that conventional antiseizure medications or their combinations are helpful in CDD, but further treatment trials are finally underway.

Indexed as

EpilepsyEpileptic SyndromesSpasms, InfantileHumansInfantProtein Serine-Threonine KinasesCDKL5 protein, humanProtein Serine-Threonine Kinases

Identifiers

PMID35483386
PMCPMC9788833
OpenAlexW4224440073

What Socratic holds

Textmetadata
LicenceTDM
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 Socratic graph.