A case of paroxysmal kinesigenic dyskinesia suspected to be reflex epilepsy.

Abstract

An 11-year-old male patient developed weakness or right arm elevation after sudden movement at the age of eight. Reflex epilepsy was initially suspected; however, magnetic resonance imaging and electroencephalography (EEG) revealed no abnormality. Video-EEG monitoring was performed, but no change was noted during attacks of weakness. He was diagnosed with paroxysmal kinesigenic dyskinesia (PKD) and carbamazepine has stopped his attacks. PKD is a rare neurological disorder characterized by brief attacks of involuntary movement triggered by sudden voluntary movements, which may be confused with reflex epilepsy. PKD should be considered as a differential diagnosis of reflex epilepsy.

• Authors: Chie Nakayama-Kamada, Rei Enatsu, Shinobu Fukumura, Tomoyoshi Kuribara, Satoko Ochi, Nobuhiro Mikuni
• Journal: Nagoya journal of medical science (Nagoya J Med Sci) Vol. 83 Issue 2 Pg. 361-365 (May 2021) ISSN: 2186-3326 [Electronic] Japan
• PMID: 34239184 (Publication Type: Case Reports)

Topics

• Child
• Diagnosis, Differential
• Dystonia
• Epilepsy, Reflex
• Humans
• Magnetic Resonance Imaging
• Male