Familial KCNQ2 mutation: a psychiatric perspective

Bibliographic Details
Title: Familial KCNQ2 mutation: a psychiatric perspective
Authors: Iftimovici, Anton, Charmet, Angeline, Desnous, Béatrice, Ory, Ana, Delorme, Richard, Coutton, Charles, Devillard, Françoise, Milh, Mathieu, Maruani, Anna
Source: Psychiatr Genet
Publisher Information: Ovid Technologies (Wolters Kluwer Health), 2023.
Publication Year: 2023
Subject Terms: Male, 0301 basic medicine, 03 medical and health sciences, 0302 clinical medicine, Seizures, Child, Preschool, Mutation, Humans, KCNQ2 Potassium Channel, Brief Reports, Exons
Description: KCNQ2 mutations are a common cause of early-onset epileptic syndromes. They are associated with heterogeneous developmental profiles, from mild to severe cognitive and social impairments that need better characterization. We report a case of an inherited KCNQ2 mutation due to a deletion c.402delC in a heterozygous state, in the exon 3 of the KCNQ2 gene. A 5-year-old boy presented a cluster of sudden-onset generalized tonic-clonic seizures at three months of age, after an unremarkable postnatal period. Multiplex ligation-dependent probe amplification identified a familial mutation after an investigation in the family revealed that this mutation was present on the father’s side. The patient was diagnosed with autism and intellectual deficiency in a context of KCNQ2-encephalopathy. We describe his clinical features in light of current literature. This report highlights the importance of appropriate genetic counseling and psychiatric assessment in planning the medical and social follow-up of a disorder with complex socio-behavioral features.
Document Type: Article
Other literature type
Language: English
ISSN: 0955-8829
DOI: 10.1097/ypg.0000000000000360
Access URL: https://pubmed.ncbi.nlm.nih.gov/38108335
Rights: CC BY NC ND
Accession Number: edsair.doi.dedup.....4eefa3d50955b355347c54cb5a406f89
Database: OpenAIRE
Description
ISSN:09558829
DOI:10.1097/ypg.0000000000000360