Atonic Seizure with Hypotonia in a Patient with Parietal Lobe Epilepsy
- Author:
Sookyung RYOO
1
;
Jung Woo KANG
;
Jung Hwa LEE
;
Jun Young LEE
;
Dae Lim KOO
Author Information
1. Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. koodaelim@gmail.com
- Publication Type:Case Report
- Keywords:
Atonic seizure;
Electroencephalopathy;
Electromyography
- MeSH:
Brain;
Electromyography;
Epilepsy;
Female;
Head;
Humans;
Malformations of Cortical Development;
Muscle Hypotonia;
Muscles;
Parietal Lobe;
Seizures;
Syncope
- From:Journal of Korean Epilepsy Society
2011;15(1):34-36
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Atonic seizure shows characteristic features such as head drop because postural muscle tone is suddenly lost. Atonia of the seizure means no muscle tone and loss of electromyographic activities were reported. We report a left parietal lobe epilepsy patient with atonic seizure showing hypotonia on electromyography. A 27 year-old woman had intractable head drop seizures since 6 years old. Her brain MRI demonstrated cortical dysplasia in the left parietal lobe. During the video-EEG monitoring, she had 21 epileptic seizures which were atonic seizures. During her atonic seizures, simultaneous EMG recordings showed decreased muscle activities during the head drop attacks, instead of no muscle tone. This is the first case showing transient hypotonia during the atonic seizure, instead of atonia.
