Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Electrocardiogram

Electrocardiogram

An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and the T...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Personalized music improves epileptiform activity, REM sleep and quality of life in children with epilepsies.

Epilepsy & behavior : E&B·2026

Same author

"Mood, psychosis and suicidal behavior in epilepsy".

Seizure·2024

Same author

The possible role of oxidative stress marker glutathione in the assessment of cognitive impairment in multiple sclerosis.

Open medicine (Warsaw, Poland)·2024

Same author

Updated Perspectives on Lifestyle Interventions as Secondary Stroke Prevention Measures: A Narrative Review.

Medicina (Kaunas, Lithuania)·2024

Same author

Creative therapy in health and disease: Inner vision.

CNS neuroscience & therapeutics·2023

Same author

Successful Treatment of a Rare Cholesterol Homeostasis Disorder Due to <i>CYP27A1</i> Gene Mutation with Chenodeoxycholic Acid Therapy.

Biomedicines·2023

Search research articles

Related Experiment Video

Updated: Jun 17, 2026

Electromagnetic Source Imaging in Presurgical Evaluation of Children with Drug-Resistant Epilepsy

Electromagnetic Source Imaging in Presurgical Evaluation of Children with Drug-Resistant Epilepsy

Published on: September 20, 2024

Emergency EEG and diagnostic yield.

Hrvoje Hećimović¹, Jelena Bosnjak, Snjezana Miskov

¹Zagreb Epilepsy Center, University Department of Neurology, Reference Center for Neurovascular Disorders, Ministry of Health and Social Welfare of Republic of Croatia, Sestre milosrdnice University Hospital, Zagreb, Croatia. Hecimovic@inet.hr

Acta Clinica Croatica

|January 9, 2010

Summary

Urgent electroencephalography (EEG) is valuable for epilepsy diagnosis. While a clinical epilepsy diagnosis correlates with EEG findings, it doesn't predict epileptiform activity on urgent EEG.

More Related Videos

Equipment Setup and Artifact Removal for Simultaneous Electroencephalogram and Functional Magnetic Resonance Imaging for Clinical Review in Epilepsy

Equipment Setup and Artifact Removal for Simultaneous Electroencephalogram and Functional Magnetic Resonance Imaging for Clinical Review in Epilepsy

Published on: June 23, 2023

Simultaneous Video-EEG-ECG Monitoring to Identify Neurocardiac Dysfunction in Mouse Models of Epilepsy

Simultaneous Video-EEG-ECG Monitoring to Identify Neurocardiac Dysfunction in Mouse Models of Epilepsy

Published on: January 29, 2018

Related Experiment Videos

Last Updated: Jun 17, 2026

Electromagnetic Source Imaging in Presurgical Evaluation of Children with Drug-Resistant Epilepsy

Electromagnetic Source Imaging in Presurgical Evaluation of Children with Drug-Resistant Epilepsy

Published on: September 20, 2024

Equipment Setup and Artifact Removal for Simultaneous Electroencephalogram and Functional Magnetic Resonance Imaging for Clinical Review in Epilepsy

Equipment Setup and Artifact Removal for Simultaneous Electroencephalogram and Functional Magnetic Resonance Imaging for Clinical Review in Epilepsy

Published on: June 23, 2023

Simultaneous Video-EEG-ECG Monitoring to Identify Neurocardiac Dysfunction in Mouse Models of Epilepsy

Simultaneous Video-EEG-ECG Monitoring to Identify Neurocardiac Dysfunction in Mouse Models of Epilepsy

Published on: January 29, 2018

Area of Science:

Neurology
Clinical Neurophysiology

Background:

Acute loss of consciousness and altered mental status are common emergency room presentations.
Differentiating between epilepsy and other causes like syncope or transient ischemic attack (TIA) is clinically important.

Purpose of the Study:

To investigate the correlation between acute neurological symptoms and epileptiform abnormalities on urgent electroencephalography (EEG).
To assess the diagnostic utility of urgent EEG in patients with suspected epilepsy.

Main Methods:

A retrospective analysis of 228 patients undergoing urgent EEG for acute loss of consciousness or brain disorders.
Clinical diagnoses included epilepsy, TIA, syncope, headache, vertigo, and head trauma.
Statistical analysis involved Spearman's rho test and multivariate regression.

Main Results:

Epilepsy was the most frequent clinical diagnosis (44.7%).
Epileptiform abnormalities were detected in 14.9% of patients, with a higher prevalence in those clinically diagnosed with epilepsy.
A significant correlation was found between epilepsy diagnosis and epileptiform EEG, but clinical diagnosis did not predict EEG findings.

Conclusions:

Urgent EEG has a high diagnostic yield in patients presenting with suspected epilepsy.
While clinical suspicion of epilepsy correlates with EEG results, it is not a sole predictor of epileptiform activity.