Evidence map›Paper›PMID 32709064›Full record

ArticleSensors (Basel, Switzerland)2020

Wearable Epileptic Seizure Prediction System with Machine-Learning-Based Anomaly Detection of Heart Rate Variability.

Toshitaka Yamakawa, Miho Miyajima, Koichi Fujiwara, Manabu Kano, Yoko Suzuki, Yutaka Watanabe, Satsuki Watanabe, Tohru Hoshida, Motoki Inaji, Taketoshi Maehara

Abstract read
In one paragraph

Article in Sensors (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 3 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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  4. Machine-learning methods for epilepsy diagnosis and therapeutic prevention: advances, setbacks, and opportunities.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Toshitaka YamakawaDivision of Informatics and Energy, Faculty of Advanced Science and Technology, Kumamoto University, Kumamoto 860-8555, Japan.
Miho MiyajimaSection of Liaison Psychiatry and Palliative Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8510, Japan.
Koichi FujiwaraGraduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan.ORCID 0000-0002-2929-0561
Manabu KanoGraduate School of Informatics, Kyoto University, Kyoto 606-8501, Japan.ORCID 0000-0002-2325-1043
Yoko SuzukiSection of Liaison Psychiatry and Palliative Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8510, Japan.
Yutaka WatanabeAmekudai Hospital, Naha 900-0005, Japan.
Satsuki WatanabeDepartment of Psychiatry, National Center Hospital of Neurology and Psychiatry, Kodaira 187-8553, Japan.
Tohru HoshidaNational Hospital Organization Nara Medical Center, Nara 619-1124, Japan.ORCID 0000-0003-3535-9497
Motoki InajiDepartment of Neurosurgery, Tokyo Medical and Dental University, Tokyo 113-8510, Japan.
Taketoshi MaeharaDepartment of Neurosurgery, Tokyo Medical and Dental University, Tokyo 113-8510, Japan.

Funding

Japan Agency for Medical Research and Development 171122Japan Society for the Promotion of Science KAKENHI 25282175
6 · The paper itself

Abstract

A warning prior to seizure onset can help improve the quality of life for epilepsy patients. The feasibility of a wearable system for predicting epileptic seizures using anomaly detection based on machine learning is evaluated. An original telemeter is developed for continuous measurement of R-R intervals derived from an electrocardiogram. A bespoke smartphone app calculates the indices of heart rate variability in real time from the R-R intervals, and the indices are monitored using multivariate statistical process control by the smartphone app. The proposed system was evaluated on seven epilepsy patients. The accuracy and reliability of the R-R interval measurement, which was examined in comparison with the reference electrocardiogram, showed sufficient performance for heart rate variability analysis. The results obtained using the proposed system were compared with those obtained using the existing video and electroencephalogram assessments; it was noted that the proposed method has a sensitivity of 85.7% in detecting heart rate variability change prior to seizures. The false positive rate of 0.62 times/h was not significantly different from the healthy controls. The prediction performance and practical advantages of portability and real-time operation are demonstrated in this study.

Indexed as

EpilepsyWearable Electronic DevicesAdolescentAdultChildElectroencephalographyHeart RateHumansMachine LearningQuality of LifeReproducibility of ResultsSeizuresYoung Adultelectrocardiographyepilepsyheart rate variabilitymachine learningmultivariate statistical process controlseizure predictionwearable system

Identifiers

PMID32709064
PMCPMC7411877

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.