Auconi M, Serino D, Digilio MC, Gnazzo M, Conti M, Vigevano F, Fusco L. Epilepsy in KBG syndrome.
Dev Med Child Neurol 2022;
65:712-720. [PMID:
36196002 DOI:
10.1111/dmcn.15428]
[Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/25/2022] [Accepted: 09/07/2022] [Indexed: 12/01/2022]
Abstract
AIM
To illustrate the epileptological and electroencephalographic (EEG) characteristics of a cohort of patients with KBG syndrome and epilepsy.
METHOD
Clinical history, age at epilepsy onset, seizure types, EEG findings, duration of epilepsy, and response to therapies were retrospectively reviewed in 11 patients (three females, eight males) with KBG syndrome.
RESULTS
All detected genetic mutations were pathogenic and affected the C-terminal region at exon 9 of ANKRD11. One patient had 16q24.3 microdeletion including the ANKRD11 gene. Mean age at onset was 67 months. Epilepsy type was focal in five patients and generalized in four. Two patients had developmental and epileptic encephalopathies. Seizure freedom was obtained after a period varying between 15 days and 6 years.
INTERPRETATION
In our patients, epilepsy appeared to respond well to treatment and, in some cases, to be self-limiting. The molecular characteristics of our patients' genetic abnormalities did not point towards any specific epilepsy hot spot. Epilepsy should be considered in the diagnostic work-up of patients with KBG syndrome.
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