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

Electrocardiogram01:29

Electrocardiogram

4.5K
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...
4.5K
Electrocardiogram Fundamentals01:28

Electrocardiogram Fundamentals

1.1K
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...
1.1K
Correlation between ECG and Cardiac Cycle01:25

Correlation between ECG and Cardiac Cycle

10.1K
The electrical signals recorded on an electrocardiogram (ECG) occur before the mechanical processes of contraction and relaxation during the cardiac cycle.
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...
10.1K
ECG Interpretation of Rhythms01:24

ECG Interpretation of Rhythms

7.8K
An electrocardiogram (ECG)graphically represents the heart's electrical activity on ECG paper or a monitor.
Components of the Electrocardiogram
The primary components of a normal ECG waveform in Normal sinus rhythm(NSR) include the P wave, PR interval, QRS complex, ST segment, T wave, and occasionally a U wave.
ECG waveforms are divided by vertical and horizontal lines at standard intervals.
The horizontal axis measures time and rate, and the vertical axis measures amplitude or voltage....
7.8K
Cardiac Action Potential01:30

Cardiac Action Potential

4.1K
Cardiac action potentials are essential for proper heart function, enabling the rhythmic contractions needed for adequate blood circulation. Nodal cells and Purkinje fibers, specialized for electrical conduction, generate these action potentials.
The cardiac action potential process involves a series of phases characterized by the movement of ions across the cardiac cell membranes, leading to the depolarization and repolarization of the cardiac myocytes.
Ionic Basis of Cardiac Action Potentials
4.1K
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

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

235
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...
235

You might also read

Related Articles

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

Sort by
Same author

Bridging the theory-practice gap in laboratory medicine: development and application of a standardized case library for fostering clinical reasoning in postgraduate training.

Frontiers in medicine·2026
Same author

Development and Preliminary Evaluation of an OMP16-Targeting Trivalent Nanobody-HRP-Based cELISA for Serological Detection of Bovine Brucellosis.

Animals : an open access journal from MDPI·2026
Same author

Corrigendum to "Alterations in the amino acid profile of follicular fluid of cows following ovarian stimulation and its association with oocyte quality and embryonic development" [Theriogenology 2026; 118017].

Theriogenology·2026
Same author

Alterations in the amino acid profile of follicular fluid of cows following ovarian stimulation and its association with oocyte quality and embryonic development.

Theriogenology·2026
Same author

No Cost of Resistance in Wheat Gene Stack Lines Containing 10 Stem Rust Resistance Transgenes.

Plant biotechnology journal·2026
Same author

Evaluation of Performance of Welding Electrodes Containing Nano-Sized Rare Earth CeO<sub>2</sub> Powder.

Materials (Basel, Switzerland)·2026

Related Experiment Video

Updated: Nov 6, 2025

A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis
18:11

A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis

Published on: December 28, 2012

24.5K

Cognition and progress of de Winter electrocardiogram pattern.

Aihua Wang1, Jing Xu2, Zijun Chen3

  • 1Department of Critical Care Medicine, Chongqing Yongchuan District People's Hospital, Chongqing 402160. 742581419@qq.com.

Zhong Nan Da Xue Xue Bao. Yi Xue Ban = Journal of Central South University. Medical Sciences
|May 10, 2021
PubMed
Summary
This summary is machine-generated.

The de Winter electrocardiogram pattern, an indicator of acute myocardial infarction, is often overlooked. Prompt emergency coronary angiography and reperfusion therapy are crucial for patients with this finding to prevent adverse cardiovascular events.

Keywords:
ST-segment elevation myocardial infarctionde Winter electrocardiogram patternpercutaneous coronary intervention

More Related Videos

Analyzing Long-Term Electrocardiography Recordings to Detect Arrhythmias in Mice
06:07

Analyzing Long-Term Electrocardiography Recordings to Detect Arrhythmias in Mice

Published on: May 23, 2021

4.0K
Real-Time Electrocardiogram Monitoring During Treadmill Training in Mice
04:45

Real-Time Electrocardiogram Monitoring During Treadmill Training in Mice

Published on: May 5, 2022

2.7K

Related Experiment Videos

Last Updated: Nov 6, 2025

A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis
18:11

A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis

Published on: December 28, 2012

24.5K
Analyzing Long-Term Electrocardiography Recordings to Detect Arrhythmias in Mice
06:07

Analyzing Long-Term Electrocardiography Recordings to Detect Arrhythmias in Mice

Published on: May 23, 2021

4.0K
Real-Time Electrocardiogram Monitoring During Treadmill Training in Mice
04:45

Real-Time Electrocardiogram Monitoring During Treadmill Training in Mice

Published on: May 5, 2022

2.7K

Area of Science:

  • Cardiology
  • Emergency Medicine
  • Diagnostic Electrocardiography

Background:

  • The de Winter electrocardiogram pattern is a critical finding in acute chest pain.
  • This pattern is frequently overlooked by clinicians despite its significance.
  • It often signifies proximal left anterior descending artery occlusion.

Purpose of the Study:

  • To highlight the importance of the de Winter electrocardiogram pattern.
  • To emphasize its association with acute myocardial infarction.
  • To advocate for timely intervention in patients presenting with this ECG finding.

Main Methods:

  • Retrospective analysis of electrocardiogram findings in patients with acute chest pain.
  • Correlation of de Winter pattern with coronary angiography results.
  • Review of clinical outcomes following reperfusion therapy.

Main Results:

  • The de Winter pattern indicates sub-complete or complete occlusion of the left anterior descending or diagonal branch.
  • This electrocardiogram change is an equivalent to ST-segment elevation myocardial infarction.
  • Patients with this pattern require immediate coronary angiography.

Conclusions:

  • The de Winter electrocardiogram pattern is a vital sign for acute myocardial infarction.
  • Early recognition and intervention are essential to improve patient prognosis.
  • Prompt reperfusion therapy can significantly reduce adverse cardiovascular events.