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Published on: July 12, 2021
Diaper changing-induced reflex seizures in CDKL5-related epilepsy
Roberta Solazzi1, Elena Fiorini1, Elena Parrini2
1Child Neuropsychiatry, Department of Surgical Sciences, Dentistry, Gynecology and Pediatrics, University of Verona.
Abstract:
Mutations in the CDKL5 (cyclin-dependent kinase-like-5) gene are known to determine early-onset drug resistant epilepsies and severe cognitive impairment with absent language, hand stereotypies, and deceleration of head growth. Reflex seizures are epileptic events triggered by specific stimuli and diaper changing is a very rare triggering event, previously described in individual cases of both focal and unclassified epilepsy, as well as in Dravet syndrome. Our aim was to describe diaper changing-induced reflex seizures as one of the presenting features in a case of CDKL5-related epilepsy, providing video-EEG documentation and focusing discussion on hyperexcitability determined by the disease. [Published with video sequence on www.epilepticdisorders.com].
Insights
Diaper changing can trigger reflex seizures in children with CDKL5 gene mutations, a rare cause of early-onset epilepsy. This study documents this unusual seizure reflex in a CDKL5-related epilepsy case.
Area of Science:
- Genetics and Neurology
- Epilepsy Research
- Pediatric Neurology
Background:
- Cyclin-dependent kinase-like-5 (CDKL5) gene mutations are linked to severe early-onset epilepsy and cognitive impairment.
- Reflex seizures, triggered by specific stimuli, are documented, with diaper changing being an exceptionally rare trigger.
- Previous reports of diaper changing-induced seizures include focal, unclassified epilepsies, and Dravet syndrome.
Purpose of the Study:
- To document diaper changing-induced reflex seizures as a presenting feature in CDKL5-related epilepsy.
- To provide video-electroencephalogram (EEG) evidence of this rare reflex seizure type.
- To discuss the underlying neuronal hyperexcitability associated with CDKL5 gene mutations.
Main Methods:
- Case study of a patient with CDKL5-related epilepsy.
- Video-electroencephalogram (EEG) recording during a diaper changing event.
- Clinical observation and analysis of seizure characteristics.
Main Results:
- Diaper changing was identified as a specific trigger for reflex seizures in the described case.
- Video-EEG confirmed the epileptic nature of the events induced by diaper changing.
- The findings highlight a rare but distinct reflex seizure pattern in CDKL5 epilepsy.
Conclusions:
- Diaper changing-induced reflex seizures can be a presenting feature of CDKL5-related epilepsy.
- This case underscores the diverse clinical manifestations and potential triggers in CDKL5 encephalopathy.
- Understanding these specific triggers is crucial for managing hyperexcitability in CDKL5-related epilepsies.
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