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 Fundamentals

Electrocardiogram Fundamentals

Introduction
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...

You might also read

Related Articles

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

Sort by

Same author

Circumstances and triggering factors for major arrhythmic events in Brugada Syndrome patients without spontaneous type 1 ST elevation.

Heart rhythm·2026

Same author

Corrigendum to "ESKD, Major Cardiovascular Events, and Death Associated With Systemic Inflammation" [<i>Kidney International Reports</i> Volume 11, Issue 4, April 2026, 106364].

Kidney international reports·2026

Same author

Clinical Impact of Guideline-Directed Medical Therapy in Patients with Left Ventricular Assist Device: An International Multicenter Study.

ESC heart failure·2026

Same author

One-Year Outcomes of the First 1000 Patients Implanted With the Medtronic Micra AV Leadless Pacing System in France: The AV-CESAR Cohort Study.

Circulation. Arrhythmia and electrophysiology·2026

Same author

Prediabetes and Atrial Fibrillation: Interpretation in the Context of Associations with Obesity and Cardiometabolic Confounding.

European journal of preventive cardiology·2026

Same author

Duration of heart failure as a determinant of outcomes after left ventricular assist device implantation: an international multicenter study.

Clinical research in cardiology : official journal of the German Cardiac Society·2026

Same journal

Balloon-Assisted Stent Advancement Technique for Stent Delivery Failure in Complex Percutaneous Coronary Intervention.

JACC. Case reports·2026

Same journal

Commissural Alignment During TAVR With a New-Generation Self-Expandable Valve in a Single Coronary Artery.

JACC. Case reports·2026

Same journal

Hydrodynamic Contrast Recanalization for Crossing Challenging Culprit Occlusions in Acute Myocardial Infarction.

JACC. Case reports·2026

Same journal

Recurrent Pulmonary Embolism After Pulmonary Endarterectomy During Rivaroxaban Therapy in a Resource-Limited Setting.

JACC. Case reports·2026

Same journal

Sudden Cardiac Arrest and Takotsubo-Like Cardiomyopathy as the Initial Presentation of Primary Carnitine Deficiency.

JACC. Case reports·2026

Same journal

Secondary Cardiac Lymphoma Presenting as Effusive-Constrictive Pericarditis.

JACC. Case reports·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Jun 11, 2025

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing

Published on: December 11, 2017

First in Human Substernal Lead Extraction.

Alexandre Bodin¹, Mathieu Nasarre¹, Bertrand Pierre¹

¹Cardiology Service, Regional University Hospital Center of Tours, Tours, France.

JACC. Case Reports

|October 3, 2024

Summary

This summary is machine-generated.

This case report details the successful substernal lead removal in a 49-year-old male patient 2.5 years post-implantation. It outlines the procedure

Area of Science:

Cardiology
Medical Device Removal

Background:

Substernal leads can pose removal challenges due to prolonged implantation.
Lead complications necessitate specialized extraction techniques.

Keywords:

EV-ICD extraction substernal lead

More Related Videos

A New Single Chamber Implantable Defibrillator with Atrial Sensing: A Practical Demonstration of Sensing and Ease of Implantation

A New Single Chamber Implantable Defibrillator with Atrial Sensing: A Practical Demonstration of Sensing and Ease of Implantation

Published on: February 28, 2012

Testing the Efficacy of Pharmacological Agents in a Pericardial Target Delivery Model in the Swine

Testing the Efficacy of Pharmacological Agents in a Pericardial Target Delivery Model in the Swine

Published on: July 7, 2016

Related Experiment Videos

Last Updated: Jun 11, 2025

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing

Published on: December 11, 2017

A New Single Chamber Implantable Defibrillator with Atrial Sensing: A Practical Demonstration of Sensing and Ease of Implantation

A New Single Chamber Implantable Defibrillator with Atrial Sensing: A Practical Demonstration of Sensing and Ease of Implantation

Published on: February 28, 2012

Testing the Efficacy of Pharmacological Agents in a Pericardial Target Delivery Model in the Swine

Testing the Efficacy of Pharmacological Agents in a Pericardial Target Delivery Model in the Swine

Published on: July 7, 2016