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

ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

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

643
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...
643
Dysrhythmias III: Characteristics of Dysrhythmias01:29

Dysrhythmias III: Characteristics of Dysrhythmias

542
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...
542
Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

545
Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
545
Dysrhythmias II: Classification of Tachyarrhythmias01:28

Dysrhythmias II: Classification of Tachyarrhythmias

664
Tachyarrhythmias are a type of dysrhythmia where the heart rate exceeds 100 beats per minute. Here are some common types of tachyarrhythmias:Sinus TachycardiaSinus tachycardia originates from increased impulses from the sinus node, leading to an elevated heart rate. It is often triggered by stress, fever, or exercise.Patients may experience palpitations, a sensation of a racing heart, dizziness, and chest discomfort.Causes and Risk Factors: Common causes include physical exertion, emotional...
664
Increased pulse rate01:17

Increased pulse rate

1.2K
Tachycardia is a condition marked by an abnormally fast or irregular heart rate, surpassing the typical resting rate. In adults, tachycardia is characterized by a pulse rate ranging from 100 to 180 beats per minute. The increased heart rate can result in inadequate blood flow to various body parts, ultimately diminishing the oxygen supply to organs and tissues.
Many factors can elevate the risk of developing tachycardia. These include advanced age, a family history of arrhythmias, and an...
1.2K
Cardiomyopathy II: Dilated Cardiomyopathy01:30

Cardiomyopathy II: Dilated Cardiomyopathy

622
Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
622

You might also read

Related Articles

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

Sort by
Same author

Physical Activity and the Volume of Different Brain Regions and Structures in Older Adults: A Systematic Review and Meta-Analysis.

Journal of aging and physical activity·2026
Same author

A child with a large ostium secundum atrial septal defect, pulmonary hypertension, and the characteristic Crochetage electro-vectorcardiographic pattern.

Journal of electrocardiology·2026
Same author

Trends in Stroke Mortality Among Adults in Southern Brazil: A Time Series Study (2000-2021).

International journal of preventive medicine·2026
Same author

Transient atypical advanced interatrial block in a pre-adolescent with sequelae of rheumatic fever.

Journal of electrocardiology·2025
Same author

Sleep Duration and Energy Expenditure at Work in Motorcycle Taxi Drivers from Rio Branco City, Western Brazilian Amazon: A Cross-Sectional Study.

Indian journal of occupational and environmental medicine·2025
Same author

De Winter Pattern and Transient Prominent Anterior Forces in a Patient With Left Anterior Descending Coronary Artery Stenosis.

The Canadian journal of cardiology·2025
Same journal

Critical Appraisal of Self-Supervised Contrastive Pretraining for Extreme Few-Shot ECG Classification.

Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc·2026
Same journal

An Unusual Etiology of Bayés' Syndrome: Fabry Disease.

Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc·2026
Same journal

Interpreting ECG-Based Risk Stratification in Women With INOCA: Methodological Considerations From the WISE Cohort.

Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc·2026
Same journal

Electrocardiographic Repolarization Changes Following Orchiectomy: Insights Into QT Interval Prolongation and Clinical Implications.

Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc·2026
Same journal

Critique on Integrated Heart Sound-Electrocardiogram Synchronization System for Early Detecting Left Ventricular Systolic Dysfunction in Pediatric Populations.

Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc·2026
Same journal

Beyond Training Stability: The Need for Clinical Generalizability and Explainability in Self-Supervised ECG Models.

Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc·2026
See all related articles

Related Experiment Video

Updated: Feb 20, 2026

Dual-Dye Optical Mapping of Hearts from RyR2R2474S Knock-In Mice of Catecholaminergic Polymorphic Ventricular Tachycardia
09:36

Dual-Dye Optical Mapping of Hearts from RyR2R2474S Knock-In Mice of Catecholaminergic Polymorphic Ventricular Tachycardia

Published on: December 22, 2023

1.8K

Catecholaminergic polymorphic ventricular tachycardia, an update.

Andrés R Pérez-Riera1, Raimundo Barbosa-Barros2, Marianne P C de Rezende Barbosa1

  • 1Design of Studies and Scientific Writing Laboratory in the ABC Medicine Faculty, Santo André, São Paulo, Brazil.

Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc
|October 20, 2017
PubMed
Summary
This summary is machine-generated.

Catecholaminergic polymorphic ventricular tachycardia (CPVT) is a rare, life-threatening inherited heart rhythm disorder. Early diagnosis and management are crucial to prevent sudden cardiac death in young individuals.

Keywords:
catecholaminergic polymorphic ventricular tachycardiachannelopathiesnormal structural heartsudden cardiac death/arrest

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

15.4K
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

1.9K

Related Experiment Videos

Last Updated: Feb 20, 2026

Dual-Dye Optical Mapping of Hearts from RyR2R2474S Knock-In Mice of Catecholaminergic Polymorphic Ventricular Tachycardia
09:36

Dual-Dye Optical Mapping of Hearts from RyR2R2474S Knock-In Mice of Catecholaminergic Polymorphic Ventricular Tachycardia

Published on: December 22, 2023

1.8K
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

15.4K
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

1.9K

Area of Science:

  • Cardiology
  • Genetics
  • Electrophysiology

Background:

  • Catecholaminergic polymorphic ventricular tachycardia (CPVT) is a rare, lethal inherited cardiac ion channelopathy.
  • It presents as unexplained syncope or sudden cardiac death in young individuals without structural heart disease.
  • Arrhythmias are triggered by adrenergic stimulation, such as exercise or emotional stress.

Purpose of the Study:

  • To provide a comprehensive review of CPVT.
  • To discuss its concept, epidemiology, genetics, clinical presentation, diagnosis, and management.
  • To emphasize the importance of early recognition and suspicion in emergency settings.

Main Methods:

  • This review synthesizes current knowledge on CPVT.
  • It covers genetic background, subtypes, clinical and electrocardiographic features.
  • Diagnostic criteria and differential diagnoses are discussed.

Main Results:

  • CPVT is characterized by adrenergically mediated ventricular arrhythmias.
  • Diagnosis can be challenging due to varied presentations and normal baseline ECG.
  • High index of suspicion and familiarity with characteristic findings are essential.

Conclusions:

  • CPVT requires prompt recognition and management to mitigate the risk of recurrent arrhythmias and sudden cardiac arrest.
  • Understanding genetic factors and clinical manifestations aids in diagnosis.
  • Effective management strategies are vital for improving patient outcomes.