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

Exercise Stress Test01:26

Exercise Stress Test

2.0K
Introduction
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
2.0K
Electrocardiogram01:29

Electrocardiogram

8.4K
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...
8.4K
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

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

1.0K
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...
1.0K
Dysrhythmias III: Characteristics of Dysrhythmias01:29

Dysrhythmias III: Characteristics of Dysrhythmias

702
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...
702
Dysrhythmias II: Classification of Tachyarrhythmias01:28

Dysrhythmias II: Classification of Tachyarrhythmias

788
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...
788
Dysrhythmias V: Evaluating Dysrhythmias01:30

Dysrhythmias V: Evaluating Dysrhythmias

478
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...
478

You might also read

Related Articles

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

Sort by
Same author

Association between interventional cardiologist practice characteristics, CABG use, and clinical outcomes.

European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery·2026
Same author

Scope and Outcome of Early Repolarization Syndrome in Unexplained Cardiac Arrest: Insights From the National HiRO Registry.

Circulation. Arrhythmia and electrophysiology·2026
Same author

Epinephrine Challenge: Long-Term Evaluation of Test Performance for the Evaluation of Unexplained Cardiac Arrest and Familial Sudden Death.

JACC. Clinical electrophysiology·2026
Same author

Pace and Ablate or Pace Then Ablate: Defining the Risk of Concomitant AV Node Ablation and Pacemaker Implantation Using a Probability Based Approach.

Circulation. Arrhythmia and electrophysiology·2026
Same author

2026 HRS/AHA/APHRS/EHRA/IDSA/LAHRS/PACES/STS expert consensus statement update on cardiovascular implantable electronic device lead management and extraction.

Heart rhythm·2026
Same author

RBM20 Truncating Variants and Human Cardiomyopathy.

JAMA cardiology·2026

Related Experiment Video

Updated: Apr 9, 2026

Evaluation of Hydration Status by Bioelectrical Impedance Vector Analysis in Patients with Ischemic Heart Disease Undergoing Exercise Stress Test
10:21

Evaluation of Hydration Status by Bioelectrical Impedance Vector Analysis in Patients with Ischemic Heart Disease Undergoing Exercise Stress Test

Published on: September 22, 2023

1.1K

Burst Exercise Stress Testing in Catecholaminergic Polymorphic Ventricular Tachycardia.

Borna Naderi1,2, Christopher O Y Li1,2, Brianna Davies1,2

  • 1Centre for Cardiovascular Innovation, St Paul's Hospital, The University of British Columbia, Vancouver, British Columbia, Canada.

JAMA Cardiology
|April 8, 2026
PubMed
Summary
This summary is machine-generated.

The Burst exercise stress test protocol is more effective than the Bruce protocol for diagnosing catecholaminergic polymorphic ventricular tachycardia (CPVT). This method frequently leads to intensified treatment for patients with CPVT without safety concerns.

More Related Videos

Integration of Brain Tissue Saturation Monitoring in Cardiopulmonary Exercise Testing in Patients with Heart Failure
04:20

Integration of Brain Tissue Saturation Monitoring in Cardiopulmonary Exercise Testing in Patients with Heart Failure

Published on: October 1, 2019

6.4K
Cardiac Stress Test Induced by Dobutamine and Monitored by Cardiac Catheterization in Mice
15:45

Cardiac Stress Test Induced by Dobutamine and Monitored by Cardiac Catheterization in Mice

Published on: February 10, 2013

18.9K

Related Experiment Videos

Last Updated: Apr 9, 2026

Evaluation of Hydration Status by Bioelectrical Impedance Vector Analysis in Patients with Ischemic Heart Disease Undergoing Exercise Stress Test
10:21

Evaluation of Hydration Status by Bioelectrical Impedance Vector Analysis in Patients with Ischemic Heart Disease Undergoing Exercise Stress Test

Published on: September 22, 2023

1.1K
Integration of Brain Tissue Saturation Monitoring in Cardiopulmonary Exercise Testing in Patients with Heart Failure
04:20

Integration of Brain Tissue Saturation Monitoring in Cardiopulmonary Exercise Testing in Patients with Heart Failure

Published on: October 1, 2019

6.4K
Cardiac Stress Test Induced by Dobutamine and Monitored by Cardiac Catheterization in Mice
15:45

Cardiac Stress Test Induced by Dobutamine and Monitored by Cardiac Catheterization in Mice

Published on: February 10, 2013

18.9K

Area of Science:

  • Cardiology
  • Genetics

Background:

  • Catecholaminergic polymorphic ventricular tachycardia (CPVT) is a rare inherited arrhythmogenic syndrome.
  • Exercise stress testing is crucial for provoking adrenergically mediated ventricular arrhythmias in CPVT patients.
  • Traditional protocols like the Bruce protocol may lack sensitivity, potentially leading to missed diagnoses.

Purpose of the Study:

  • To compare the diagnostic yield and therapeutic impact of the Burst exercise stress testing protocol versus the traditional Bruce protocol in CPVT patients.
  • To evaluate the effectiveness of the Burst protocol in unmasking arrhythmias that may be missed by standard testing.

Main Methods:

  • A retrospective cohort study involving 28 pediatric and adult patients evaluated for CPVT at two tertiary referral centers.
  • Patients underwent consecutive Bruce and Burst exercise stress tests.
  • Arrhythmia severity was quantified using the Ventricular Arrhythmia Score.

Main Results:

  • The Burst protocol provoked more severe arrhythmias in 71% of patients compared to the Bruce protocol (median Ventricular Arrhythmia Score of 3 vs 1, P < .001).
  • The findings led to pharmacologic therapy escalation (e.g., beta-blockers, flecainide) in 65% of patients.
  • No adverse safety events were reported during the Burst protocol testing.

Conclusions:

  • The Burst exercise stress testing protocol is more effective than the Bruce protocol in detecting a greater burden and severity of ventricular arrhythmias in CPVT patients.
  • Incorporating the Burst protocol into routine care for CPVT is low-risk and informative, often prompting necessary treatment escalation.
  • The study highlights the potential of the Burst protocol to improve diagnostic accuracy and therapeutic management in CPVT.