Volume 24, Issue 4 pp. 697-712
Original article

Epilepsy in patients with WWOX-related epileptic encephalopathy (WOREE) syndrome

Raidah Al Baradie

Corresponding Author

Raidah Al Baradie

Department of Pediatric Neurology, King Fahad Specialist Hospital, Dammam, Saudi Arabia

Correspondence: Raidah Al Baradie Department of Pediatric Neurology, Neuroscience Center, King Fahad Specialist Hospital, Ammar Bin Thabit Street, Dammam – 31444, Saudi Arabia <[email protected]>Search for more papers by this author
Ali Mir

Ali Mir

Department of Pediatric Neurology, King Fahad Specialist Hospital, Dammam, Saudi Arabia

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Ali Alsaif

Ali Alsaif

Department of Pediatric Neurology, King Fahad Specialist Hospital, Dammam, Saudi Arabia

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Mona Ali

Mona Ali

Department of Pediatric Neurology, King Fahad Specialist Hospital, Dammam, Saudi Arabia

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Fouad Al Ghamdi

Fouad Al Ghamdi

Department of Pediatric Neurology, King Fahad Specialist Hospital, Dammam, Saudi Arabia

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Shahid Bashir

Shahid Bashir

Department of Pediatric Neurology, King Fahad Specialist Hospital, Dammam, Saudi Arabia

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Yousef Howsawi

Yousef Howsawi

Genetic and metabolic department, King Fahad Specialist Hospital, Dammam, Saudi Arabia

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First published: 25 August 2022
Citations: 2

Abstract

Objective. Epileptic encephalopathy (EE) is difficult to diagnose and manage. It can be caused by a variety of disorders, and its aetiology may guide management and prognosis. The human gene for WW domain-containing oxidoreductase (WWOX) has been associated with epileptic encephalopathy, which presents in infancy with seizures, psychomotor delay, microcephaly, and optic atrophy.

Methods. We report nine patients with WWOX-related EE from six families. We provide detailed descriptions of clinical presentations, imaging findings, neurophysiological manifestations, and related mutations. Whole-exome sequencing (WES) was used to identify the mutations in the WWOX gene.

Results. We established correlations between genotype and phenotype in our cases and previously reported cases.

Significance. Our data support previously reported findings regarding WWOX-related EE, indicating the importance of the human WWOX gene in brain development and the association between WWOX mutations and EE. Our study also highlights the power of WES, particularly in clinically challenging cases.

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