Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Dysrhythmias III: Characteristics of Dysrhythmias01:29

Dysrhythmias III: Characteristics of Dysrhythmias

555
Dysrhythmias, also known as arrhythmias, are irregular heart rhythms that result from abnormal electrical activity in the heart, affecting its ability to circulate blood efficiently. Tachyarrhythmias, a subset of dysrhythmias, are characterized by abnormally fast heart rates exceeding 100 beats per minute. Here are some types of tachyarrhythmias with their distinct ECG features:Sinus Tachycardia:Sinus tachycardia presents a regular heart rhythm with an increased rate of 101-180 beats per...
555
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias

665
Arrhythmia is a condition characterized by an irregular heart rhythm, with ECG changes that differ based on its origin and nature. The types of arrhythmias discussed below include atrial, junctional, and ventricular arrhythmias.Atrial ArrhythmiasPremature Atrial Complexes (PACs): PACs are early atrial beats caused by stress, caffeine, alcohol, electrolyte imbalances, hypoxia, hyperthyroidism, or certain medications (e.g., bronchodilators and decongestants). The ECG shows early P waves with an...
665
Cardiopulmonary Resuscitation III: AED Use01:23

Cardiopulmonary Resuscitation III: AED Use

828
Introduction to AEDAn Automated External Defibrillator (AED) is a portable medical device that analyzes the heart's rhythm and, if necessary, delivers an electrical shock to help the heart re-establish an effective rhythm during sudden cardiac arrest (SCA). SCA occurs when the heart suddenly and unexpectedly stops beating, leading to a loss of blood flow to the brain and other vital organs. In such emergencies, time is of the essence, and using an AED, combined with Cardiopulmonary...
828
Cardiopulmonary Resuscitation IV: Pharmacological Management01:25

Cardiopulmonary Resuscitation IV: Pharmacological Management

983
Pharmacologic intervention is crucial in treating cardiac arrest patients during ACLS or Advanced Cardiovascular Life Support. The ACLS algorithms guide the administration of specific drugs based on the patient's cardiac arrest rhythm, which includes pulseless ventricular tachycardia (VT), ventricular fibrillation (VF), asystole, and pulseless electrical activity (PEA).EpinephrineIndication: Epinephrine is the first-line drug for all cardiac arrest rhythms.Mechanism of Action: Epinephrine...
983
Disturbances in Heart Rhythm01:29

Disturbances in Heart Rhythm

3.3K
Arrhythmia or dysrhythmia refers to an abnormal heart rhythm caused by a defect in the heart's conduction system. It can cause the heart to beat irregularly, too quickly, or too slowly, leading to symptoms like chest pain, shortness of breath, and fainting. Factors such as stress, caffeine, alcohol, nicotine, cocaine, certain drugs, congenital defects, diseases, and electrolyte abnormalities can trigger arrhythmias.
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
3.3K
Dysrhythmias VI: Management of Dysrhythmias01:25

Dysrhythmias VI: Management of Dysrhythmias

516
Dysrhythmia management involves a multifaceted approach, incorporating pharmacological treatments, medical procedures, surgical interventions, lifestyle modifications, and patient education.Pharmacological ManagementAntiarrhythmic Drugs:Class I (Sodium Channel Blockers): This class includes quinidine and procainamide, which reduce the speed of impulse conduction in the heart, stabilize the cardiac membrane, and control arrhythmias. Quinidine and procainamide are Class IA agents that prolong the...
516

You might also read

Related Articles

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

Sort by
Same author

Characteristics and outcomes of patients undergoing coronary computed tomography angiography for suspected acute coronary syndrome in the emergency department.

The international journal of cardiovascular imaging·2026
Same author

Efficacy and safety of transcatheter left atrial appendage closure guided by transoesophageal echocardiography using standard and micro TEE probes: a single-center retrospective study.

Frontiers in cardiovascular medicine·2026
Same author

Defibrillation hope and fury.

Resuscitation·2026
Same author

Resuscitation From Out-of-Hospital Cardiac Arrest When Is EtCO<sub>2</sub> Reliably Associated With ROSC?

Circulation·2026
Same author

Left Ventricular Hypertrabeculation and Ventricular Arrhythmias.

Journal of clinical medicine·2026
Same author

Left atrial strain identifies early cardiac involvement in variant transthyretin amyloidosis.

Amyloid : the international journal of experimental and clinical investigation : the official journal of the International Society of Amyloidosis·2026

Related Experiment Video

Updated: Feb 22, 2026

Standardized Model of Ventricular Fibrillation and Advanced Cardiac Life Support in Swine
05:36

Standardized Model of Ventricular Fibrillation and Advanced Cardiac Life Support in Swine

Published on: January 30, 2020

8.5K

Defibrillation for Ventricular Fibrillation: A Shocking Update.

Graham Nichol1, Michael R Sayre2, Federico Guerra3

  • 1University of Washington-Harborview Center for Prehospital Emergency Care, University of Washington, Seattle, Washington.

Journal of the American College of Cardiology
|September 16, 2017
PubMed
Summary
This summary is machine-generated.

Sudden cardiac death (SCD) is often caused by ventricular fibrillation. Defibrillation, using devices like automated external defibrillators (AEDs), is a key treatment to restore normal heart rhythm and improve survival rates.

Keywords:
automated external defibrillatorcardiac arrhythmiascardiopulmonary resuscitationemergency medical servicesout-of-hospital cardiac arrestvolunteers

More Related Videos

A Model of Long-Term Ventricular Fibrillation in Isolated Rat Hearts
07:56

A Model of Long-Term Ventricular Fibrillation in Isolated Rat Hearts

Published on: February 17, 2023

1.4K
A Rat Model of Ventricular Fibrillation and Resuscitation by Conventional Closed-chest Technique
09:47

A Rat Model of Ventricular Fibrillation and Resuscitation by Conventional Closed-chest Technique

Published on: April 26, 2015

16.4K

Related Experiment Videos

Last Updated: Feb 22, 2026

Standardized Model of Ventricular Fibrillation and Advanced Cardiac Life Support in Swine
05:36

Standardized Model of Ventricular Fibrillation and Advanced Cardiac Life Support in Swine

Published on: January 30, 2020

8.5K
A Model of Long-Term Ventricular Fibrillation in Isolated Rat Hearts
07:56

A Model of Long-Term Ventricular Fibrillation in Isolated Rat Hearts

Published on: February 17, 2023

1.4K
A Rat Model of Ventricular Fibrillation and Resuscitation by Conventional Closed-chest Technique
09:47

A Rat Model of Ventricular Fibrillation and Resuscitation by Conventional Closed-chest Technique

Published on: April 26, 2015

16.4K

Area of Science:

  • Cardiology
  • Emergency Medicine
  • Medical Devices

Background:

  • Sudden cardiac arrest (SCA) involves cessation of cardiac activity, leading to loss of consciousness and circulation.
  • Sudden cardiac death (SCD) is frequently linked to underlying coronary artery disease.
  • SCA is potentially reversible with interventions like cardiopulmonary resuscitation and defibrillation.

Purpose of the Study:

  • To review the current state of defibrillation in treating sudden cardiac death (SCD).
  • To discuss the evolution, technology, and accessibility of automated external defibrillators (AEDs).
  • To explore strategies for improving survival rates and the role of implantable cardioverter-defibrillators (ICDs) and wearable cardioverter-defibrillators (WCDs).

Main Methods:

  • Literature review of defibrillation techniques and devices for sudden cardiac death (SCD).
  • Analysis of historical development and technical aspects of automated external defibrillators (AEDs).
  • Examination of strategies to enhance AED accessibility and patient survival.

Main Results:

  • Sudden cardiac death (SCD) is primarily addressed by defibrillation for shockable rhythms like ventricular fibrillation.
  • Modern automated external defibrillators (AEDs) have evolved significantly in technology and usability.
  • Improved AED access and timely intervention are critical for increasing survival rates from sudden cardiac arrest.

Conclusions:

  • Defibrillation remains a cornerstone therapy for sudden cardiac death (SCD) caused by ventricular fibrillation.
  • The effective use of automated external defibrillators (AEDs), implantable cardioverter-defibrillators (ICDs), and wearable cardioverter-defibrillators (WCDs) is crucial.
  • Continued advancements in defibrillation technology and accessibility strategies are vital for improving outcomes in sudden cardiac arrest.