Automated real-time detection of tonic-clonic seizures using a wearable EMG device
- PMID: 29305441
- PMCID: PMC5791791
- DOI: 10.1212/WNL.0000000000004893
Automated real-time detection of tonic-clonic seizures using a wearable EMG device
Abstract
Objective: To determine the accuracy of automated detection of generalized tonic-clonic seizures (GTCS) using a wearable surface EMG device.
Methods: We prospectively tested the technical performance and diagnostic accuracy of real-time seizure detection using a wearable surface EMG device. The seizure detection algorithm and the cutoff values were prespecified. A total of 71 patients, referred to long-term video-EEG monitoring, on suspicion of GTCS, were recruited in 3 centers. Seizure detection was real-time and fully automated. The reference standard was the evaluation of video-EEG recordings by trained experts, who were blinded to data from the device. Reading the seizure logs from the device was done blinded to all other data.
Results: The mean recording time per patient was 53.18 hours. Total recording time was 3735.5 hours, and device deficiency time was 193 hours (4.9% of the total time the device was turned on). No adverse events occurred. The sensitivity of the wearable device was 93.8% (30 out of 32 GTCS were detected). Median seizure detection latency was 9 seconds (range -4 to 48 seconds). False alarm rate was 0.67/d.
Conclusions: The performance of the wearable EMG device fulfilled the requirements of patients: it detected GTCS with a sensitivity exceeding 90% and detection latency within 30 seconds.
Classification of evidence: This study provides Class II evidence that for people with a history of GTCS, a wearable EMG device accurately detects GTCS (sensitivity 93.8%, false alarm rate 0.67/d).
© 2018 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Academy of Neurology.
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Comment in
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Non-EEG seizure detection is here.Neurology. 2018 Jan 30;90(5):207-208. doi: 10.1212/WNL.0000000000004901. Epub 2018 Jan 5. Neurology. 2018. PMID: 29305440 No abstract available.
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Real-Time Non-EEG Convulsive Seizure Detection Devices: They Work; Now What?Epilepsy Curr. 2018 May-Jun;18(3):164-166. doi: 10.5698/1535-7597.18.3.164. Epilepsy Curr. 2018. PMID: 29950939 Free PMC article. No abstract available.
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