Evidence map›Paper›PMID 41635801›Full record

ArticleJIMD reports2026

Epilepsy Phenotype and EEG Finding of Rhythmic High-Amplitude Delta With Superimposed Spikes (RHADS) in Succinate Dehydrogenase Deficiency.

Aaron B Bowen, Chiadika Nwanze, Cesar Alves, Lance Rodan, Anna Lecticia Pinto, Melissa A Walker, Irina Anselm, Phillip L Pearl

Abstract read
In one paragraph

Article in JIMD reports, 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

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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

8 authors.

Aaron B BowenDepartment of Neurology Boston Children's Hospital Boston Massachusetts USA.ORCID https://orcid.org/0000-0002-4465-8627
Chiadika NwanzeDepartment of Neurology Boston Children's Hospital Boston Massachusetts USA.
Cesar AlvesDivision of Neuroradiology, Department of Radiology Boston Children's Hospital Boston Massachusetts USA.
Lance RodanDepartment of Neurology Boston Children's Hospital Boston Massachusetts USA.ORCID https://orcid.org/0000-0002-2392-6688
Anna Lecticia PintoDepartment of Neurology Boston Children's Hospital Boston Massachusetts USA.
Melissa A WalkerDepartment of Neurology, Child Neurology Division Massachusetts General Hospital Boston Massachusetts USA.
Irina AnselmDepartment of Neurology Boston Children's Hospital Boston Massachusetts USA.
Phillip L PearlDepartment of Neurology Boston Children's Hospital Boston Massachusetts USA.ORCID https://orcid.org/0000-0002-6373-1068

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Succinate dehydrogenase (SDH) serves a dual function as complex II of the electron transport chain and an enzyme of the tricarboxylic acid cycle. Pathogenic variants in subunits of SDH result in diverse clinical presentations, including typically autosomal recessive neurodegenerative disorders. Biallelic variants in the SDHA subunit most often cause Leigh syndrome. However, epilepsy phenotypes of these patients are ill-defined and there is only one prior report of epilepsy in a patient with SDHA deficiency. Here we report the seizure and EEG phenotypes of three autosomal recessive SDHA patients with refractory epilepsy, two of whom are siblings. These patients exhibit multiple seizure types and a variety of EEG findings, including a patient with rhythmic high-amplitude delta with superimposed spikes (RHADS), a finding closely associated with polymerase gamma (POLG)-related disorders.

Indexed as

complex II deficiencyepilepsyLeigh syndromeRHADSsuccinate dehydrogenase deficiency

Identifiers

PMID41635801
PMCPMC12861999

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