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

Pulse rhythm01:30

Pulse rhythm

Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac muscle...
Dysrhythmias VI: Management of Dysrhythmias01:25

Dysrhythmias VI: Management of Dysrhythmias

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...
Dysrhythmias V: Evaluating Dysrhythmias01:30

Dysrhythmias V: Evaluating Dysrhythmias

Dysrhythmias, also known as arrhythmias, are disturbances in the heart's rhythm that range from benign to life-threatening. A thorough evaluation is crucial for appropriate management and involves a comprehensive medical history, physical examination, and various diagnostic tests.Medical HistorySymptoms: Collect detailed information on palpitations, dizziness, syncope, chest pain, and fatigue. Note their onset, frequency, and triggers.Previous Cardiac Issues: Document any history of heart...
Electrocardiogram Fundamentals01:28

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 to...
Holter Monitor: 24-Hour Monitoring01:23

Holter Monitor: 24-Hour Monitoring

Holter monitoring is a continuous electrocardiography (ECG) recording that tracks the heart's electrical activity over an extended period, generally 24 to 48 hours. This noninvasive diagnostic tool detects irregular heart rhythms that may not be captured during a standard ECG performed in a clinical setting.DeviceThe Holter monitor is a portable, small device connected to several electrodes on the patient's chest. These electrodes detect the heart's electrical signals and transmit them to the...
Mechanism of Cardiac Arrhythmias01:28

Mechanism of Cardiac Arrhythmias

Arrhythmias are irregular heart rhythms occurring when the heart's electrical impulses become abnormal. These disturbances can lead to various symptoms, depending on their severity and the underlying cause. Some common factors contributing to arrhythmias include hypoxia, ischemia, electrolyte imbalances, excessive catecholamine exposure, drug toxicity, and muscle overstretching. Arrhythmias can be classified into two main types based on the rate and site of origin of abnormal heart rhythms.

You might also read

Related Articles

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

Sort by
Same author

Left Atrial Mechanical Function Following Hybrid Epicardial-Endocardial Versus Endocardial Catheter Ablation: A Randomized Mechanistic Trial.

Heart rhythm·2026
Same author

Unravelling the grey zone: submaximal-to-peak stress echocardiography enhances diagnostic accuracy in differentiating early dilated cardiomyopathy from physiological adaptation.

Echo research and practice·2026
Same author

Dysregulated T Cell-Mediated Immunity Underlies Progression of Arrhythmogenic Right Ventricular Cardiomyopathy.

Circulation·2026
Same author

Convergent Hybrid Ablation Versus Catheter Ablation in Patients With Persistent Atrial Fibrillation and Heart Failure: HALT AF Study Protocol and Rationale for a Multicenter Randomized Controlled Trial.

Journal of the American Heart Association·2026
Same author

Prospective use of genomics in the evaluation of sudden cardiac death: results from a national health service population pathway.

EBioMedicine·2026
Same author

Ventricular conduction is a marker for arrhythmic risk in SCN5A-E1784K overlap sodium channel disease.

Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology·2026
Same journal

In-Hospital Cardiac Arrest Detection Performance Analysis and Comparison on Effective Feature Selection.

Clinical cardiology·2026
Same journal

Interpreting the Association Between Diuretic Intensity Score and Mortality: The Potential Roles of Diuretic Responsiveness and Mineralocorticoid Receptor Antagonist Therapy.

Clinical cardiology·2026
Same journal

Heart Failure With Preserved Ejection Fraction-Like Phenotype in Coronary Artery Disease and Obstructive Sleep Apnea: Insights From the RICCADSA Cohort.

Clinical cardiology·2026
Same journal

Ethanol Infusion Into the Vein of Marshall for Atrial Fibrillation: Clinical Efficacy and Technical Limitations.

Clinical cardiology·2026
Same journal

Methodological Considerations Regarding Diuretic Intensity Score and Mortality in Hospitalized Heart Failure Patients.

Clinical cardiology·2026
Same journal

Inpatient Outcomes and Complications After Left Atrial Appendage Occlusion in Rural Versus Urban Hospitals in the United States.

Clinical cardiology·2026
See all related articles

Related Experiment Video

Updated: Jun 16, 2026

Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System
10:17

Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System

Published on: April 11, 2025

Cardiac arrhythmia management using a noncontact mapping multielectrode array.

Andrei Catanchin1, Reginald Liew, Elijah R Behr

  • 1Division of Cardiac and Vascular Sciences, St George's University of London, Cranmer Terrace, London, UK. andrei.catanchin@gmail.com

Clinical Cardiology
|February 16, 2010
PubMed
Summary
This summary is machine-generated.

The multielectrode array (MEA) effectively treats cardiac arrhythmias, especially in the right heart, serving as a safe first-line therapy. Further research is recommended to compare MEA with other mapping techniques.

More Related Videos

Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction
06:57

Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction

Published on: January 31, 2019

Remote Magnetic Navigation for Accurate, Real-time Catheter Positioning and Ablation in Cardiac Electrophysiology Procedures
09:13

Remote Magnetic Navigation for Accurate, Real-time Catheter Positioning and Ablation in Cardiac Electrophysiology Procedures

Published on: April 21, 2013

Related Experiment Videos

Last Updated: Jun 16, 2026

Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System
10:17

Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System

Published on: April 11, 2025

Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction
06:57

Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction

Published on: January 31, 2019

Remote Magnetic Navigation for Accurate, Real-time Catheter Positioning and Ablation in Cardiac Electrophysiology Procedures
09:13

Remote Magnetic Navigation for Accurate, Real-time Catheter Positioning and Ablation in Cardiac Electrophysiology Procedures

Published on: April 21, 2013

Area of Science:

  • Cardiology
  • Electrophysiology
  • Medical Devices

Background:

  • The multielectrode array (MEA) is a technology for noncontact mapping of cardiac arrhythmias.
  • This study reviews institutional experience with MEA for arrhythmia treatment.

Purpose of the Study:

  • To evaluate the role of MEA as a first-line therapy for various cardiac arrhythmias.
  • To assess the safety and efficacy of MEA in a clinical setting.

Main Methods:

  • A 6-year retrospective and prospective analysis of consecutive cases using MEA.
  • Procedures included electrophysiological study and catheter ablation (RF, cryothermal, DC) under general anesthesia in 46% of cases.
  • Analyzed data from 66 procedures on 60 patients with diverse arrhythmias.

Main Results:

  • Successful ablation in 77.4% of cases, with highest success rates for right atrial tachycardia, right ventricular outflow tract ectopy, and typical atrial flutter.
  • Radiofrequency energy was most common (67%), while direct current (DC) ablation showed 100% success.
  • Complications included groin hematomas (2 of 7), with 56% of patients arrhythmia-free at 12.4-month follow-up.

Conclusions:

  • The MEA is an effective and safe option for first-line therapy in multiple cardiac arrhythmias, particularly those originating in the right heart.
  • Further studies are needed to compare MEA with alternative mapping techniques.