Premium
Action Myoclonus and Seizure in Kufor‐Rakeb Syndrome
Author(s) -
Rohani Mohammad,
Lang Anthony E.,
Sina Farzad,
Elahi Elahe,
Fasano Alfonso,
Hardy John,
Bras Jose,
Alavi Afagh
Publication year - 2017
Publication title -
movement disorders clinical practice
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.754
H-Index - 18
ISSN - 2330-1619
DOI - 10.1002/mdc3.12570
Subject(s) - myoclonus , action (physics) , psychology , neuroscience , medicine , epilepsy , quantum mechanics , physics
View Supplementary Video 1 View Supplementary Video 2 View Supplementary Video 3 View Supplementary Video 4 View Supplementary Video 5 Background Kufor‐Rakeb syndrome ( KRS ) is a rare autosomal recessive neurologic disease with diverse phenotypic features. Herein we report an Iranian KRS family with seizure and action myoclonus in addition to other typical manifestations of this syndrome. Method All family members underwent careful neurologic examination. Exome sequencing was performed and ATP 13A2 variation genotyped in all family members. Results Cognitive deficits, hypokinesia, rigidity, spasticity, brisk deep tendon reflexes, upward gaze palsy, tremor, and facial‐faucial‐finger mini‐myoclonus were the common manifestations of all affected siblings. Two cases had seizure and the most severely affected sibling demonstrated severe action myoclonus. Exome sequencing identified a homozygous nonsense mutation c.2455C>T;p.Arg819* in ATP 13A2 gene. Conclusions We reported five KRS affected siblings who manifested myoclonus and seizure. The most severely affected one demonstrated action myoclonus, which has not been reported so far.