Effect of Flunarizine on Alternating Hemiplegia of Childhood in a Patient with the p.E815K Mutation in ATP1A3: A Case Report

Alternating hemiplegia of childhood (AHC) (MIM 104290) is characterized by transient repeated attacks of paresis on either or both sides of the body, oculomotor and autonomic abnormalities, movement disorders, and cognitive impairment. Preventing paroxysmal attacks, such as paresis and spasm, in pat...

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Main Authors: Shouichirou Kusunoki, Jun Kido, Ken Momosaki, Takaaki Sawada, Tomoko Kashiki, Shirou Matsumoto, Kimitoshi Nakamura
Format: Article
Language:English
Published: Karger Publishers 2020-09-01
Series:Case Reports in Neurology
Subjects:
Online Access:https://www.karger.com/Article/FullText/509287
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author Shouichirou Kusunoki
Jun Kido
Ken Momosaki
Takaaki Sawada
Tomoko Kashiki
Shirou Matsumoto
Kimitoshi Nakamura
author_facet Shouichirou Kusunoki
Jun Kido
Ken Momosaki
Takaaki Sawada
Tomoko Kashiki
Shirou Matsumoto
Kimitoshi Nakamura
author_sort Shouichirou Kusunoki
collection DOAJ
description Alternating hemiplegia of childhood (AHC) (MIM 104290) is characterized by transient repeated attacks of paresis on either or both sides of the body, oculomotor and autonomic abnormalities, movement disorders, and cognitive impairment. Preventing paroxysmal attacks, such as paresis and spasm, in patients with AHC is often difficult. An 8-month-old girl presented to our institution with intractable epilepsy. She developed AHC, with left-right alternating or bilateral recurrent plegia upon waking, involuntary movements, eye movement abnormalities, and psychomotor retardation. She had a heterozygous de novo p.E815K mutation in the ATP1A3gene. Patients with this mutation develop severe hemiplegic spells and convulsions, have a poor neuromotor developmental outcome, and are particularly difficult to treat. Flunarizine treatment has limited therapeutic effect in such patients; however, it was definitely effective for bulbar palsy in the present case. The present case further highlights the need for the development of other new treatments, such as a ketogenic diet.
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spelling doaj.art-4ba39fbc37914b10b98b37a1d7e77a1c2022-12-21T19:36:21ZengKarger PublishersCase Reports in Neurology1662-680X2020-09-0112329930610.1159/000509287509287Effect of Flunarizine on Alternating Hemiplegia of Childhood in a Patient with the p.E815K Mutation in ATP1A3: A Case ReportShouichirou KusunokiJun KidoKen MomosakiTakaaki SawadaTomoko KashikiShirou MatsumotoKimitoshi NakamuraAlternating hemiplegia of childhood (AHC) (MIM 104290) is characterized by transient repeated attacks of paresis on either or both sides of the body, oculomotor and autonomic abnormalities, movement disorders, and cognitive impairment. Preventing paroxysmal attacks, such as paresis and spasm, in patients with AHC is often difficult. An 8-month-old girl presented to our institution with intractable epilepsy. She developed AHC, with left-right alternating or bilateral recurrent plegia upon waking, involuntary movements, eye movement abnormalities, and psychomotor retardation. She had a heterozygous de novo p.E815K mutation in the ATP1A3gene. Patients with this mutation develop severe hemiplegic spells and convulsions, have a poor neuromotor developmental outcome, and are particularly difficult to treat. Flunarizine treatment has limited therapeutic effect in such patients; however, it was definitely effective for bulbar palsy in the present case. The present case further highlights the need for the development of other new treatments, such as a ketogenic diet.https://www.karger.com/Article/FullText/509287alternating hemiplegia of childhoodatp1a3e815kflunarizine
spellingShingle Shouichirou Kusunoki
Jun Kido
Ken Momosaki
Takaaki Sawada
Tomoko Kashiki
Shirou Matsumoto
Kimitoshi Nakamura
Effect of Flunarizine on Alternating Hemiplegia of Childhood in a Patient with the p.E815K Mutation in ATP1A3: A Case Report
Case Reports in Neurology
alternating hemiplegia of childhood
atp1a3
e815k
flunarizine
title Effect of Flunarizine on Alternating Hemiplegia of Childhood in a Patient with the p.E815K Mutation in ATP1A3: A Case Report
title_full Effect of Flunarizine on Alternating Hemiplegia of Childhood in a Patient with the p.E815K Mutation in ATP1A3: A Case Report
title_fullStr Effect of Flunarizine on Alternating Hemiplegia of Childhood in a Patient with the p.E815K Mutation in ATP1A3: A Case Report
title_full_unstemmed Effect of Flunarizine on Alternating Hemiplegia of Childhood in a Patient with the p.E815K Mutation in ATP1A3: A Case Report
title_short Effect of Flunarizine on Alternating Hemiplegia of Childhood in a Patient with the p.E815K Mutation in ATP1A3: A Case Report
title_sort effect of flunarizine on alternating hemiplegia of childhood in a patient with the p e815k mutation in atp1a3 a case report
topic alternating hemiplegia of childhood
atp1a3
e815k
flunarizine
url https://www.karger.com/Article/FullText/509287
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