Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Electrocardiogram01:29

Electrocardiogram

2.5K
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...
2.5K
Electrocardiogram Fundamentals01:28

Electrocardiogram Fundamentals

642
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...
642
ECG Interpretation of Rhythms01:24

ECG Interpretation of Rhythms

1.3K
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....
1.3K
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

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

42
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...
42
Correlation between ECG and Cardiac Cycle01:25

Correlation between ECG and Cardiac Cycle

6.6K
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...
6.6K
ECG Interpretation of Arrhythmias I: Sinus Arrhythmias01:16

ECG Interpretation of Arrhythmias I: Sinus Arrhythmias

253
Arrhythmias are disturbances in the heart's rhythm that lead to abnormal heartbeats. These irregularities can originate from different parts of the heart and are classified based on their origin and nature.
Types of Arrhythmias
Sinus Node Arrhythmias
Sinus Bradycardia: Originating from the sinoatrial (SA) node, sinus bradycardia involves slower impulses, resulting in a heart rate of less than 60 beats per minute (bpm). Causes include sleep, vagal stimulation, beta-blockers, hypothyroidism,...
253

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Selpercatinib in Early-Stage <i>RET</i> Fusion-Positive Non-Small-Cell Lung Cancer.

The New England journal of medicine·2026
Same author

Nuclear export as a therapeutic vulnerability in ZFTA-RELA ependymoma.

Neuro-oncology·2026
Same author

Tiragolumab Plus Atezolizumab and Chemotherapy for Advanced Nonsquamous Non-Small Cell Lung Cancer: The Phase 3 SKYSCRAPER-06 Randomized Clinical Trial.

JAMA oncology·2026
Same author

Data-driven Learning: From Dashboard Data to Changes in Studying.

Medical science educator·2026
Same author

Preceptor Retention: Impact of Curriculum Reform and Competency-Based Assessment on Preceptor Reward and Burden.

The clinical teacher·2026
Same author

Improving Time to First Parental Positive Touch and Skin-to-Skin Hold for Preterm Infants: A Quality Improvement Initiative.

Advances in neonatal care : official journal of the National Association of Neonatal Nurses·2026
Same journal

'We All Try to Imagine What It's Like for Someone to Be Dependent': Attitudes Towards Drug Users Among Medical Students in the United Kingdom and Its Impact on Their Professional Identity Formation.

The clinical teacher·2026
Same journal

Is It My Responsibility? Professional Organizations' Perspectives on Disability Inclusion in Health Professions Education and Practice.

The clinical teacher·2026
Same journal

Integrated Team-Based Learning in a UK Undergraduate Medical Programme.

The clinical teacher·2026
Same journal

Women's Conferences in Medicine: Advancing Gender Equity in Medical Education.

The clinical teacher·2026
Same journal

Entrusting Attention: An Additional lens on Entrustable Professional Activity Assessment.

The clinical teacher·2026
Same journal

Students as Teachers (SAT) and Educators: An Online Elective in Medical Education.

The clinical teacher·2026
查看所有相关文章

相关实验视频

Updated: Jul 17, 2025

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

3.8K

间隔效应:改善心电图解读能力

John M Cunningham1, Melissa Johnson2, Troy Kincaid3

  • 1Department of Internal Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.

The clinical teacher
|August 30, 2023
PubMed
概括
此摘要是机器生成的。

使用心电图 (ECG) 试题实施间隔重复和检索实践显著提高了医学学生的心电图解释技能. 这种方法可以对抗忘记曲线,确保在心电图分析中保持持续的能力.

更多相关视频

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

24.3K
Optocardiography and Electrophysiology Studies of Ex Vivo Langendorff-perfused Hearts
09:52

Optocardiography and Electrophysiology Studies of Ex Vivo Langendorff-perfused Hearts

Published on: November 7, 2019

13.0K

相关实验视频

Last Updated: Jul 17, 2025

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

3.8K
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

24.3K
Optocardiography and Electrophysiology Studies of Ex Vivo Langendorff-perfused Hearts
09:52

Optocardiography and Electrophysiology Studies of Ex Vivo Langendorff-perfused Hearts

Published on: November 7, 2019

13.0K

科学领域:

  • 医学教育 医学教育
  • 认知科学 认知科学
  • 心脏病学 心脏病学

背景情况:

  • 准确的心电图 (ECG) 解释是患者护理的关键医疗技能,也是毕业的要求.
  • 成人学习科学强调,反复接触材料可以增强长期记忆的保留能力.

研究的目的:

  • 通过ECG测试来评估间隔重复和检索实践是否可以提高医学学生的ECG解释技能.
  • 评估这个课程创新的有效性,在一个纵向综合职务 (LIC).

主要方法:

  • 该研究应用了间隔重复和检索实践原则.
  • 干预组的医学学生在整个临床实习一年中定期接受心电图测验.
  • 认知科学的原则支持通过努力回忆和间隔暴露来增强记忆的保留.

主要成果:

  • 对140名学生进行17项后期测试的分析显示,两组之间存在显著差异 (ANOVA,p < 0.001).
  • 在LIC干预组的得分明显高于LIC对照组和区块对照组 (Games-Howell post hoc,p < 0.001).
  • 在LIC对照组和块对照组之间没有发现显著差异 (p = 0.59).

结论:

  • 通过测验,对心电图材料进行间隔重复,可以提高心电图解释能力.
  • 这种教育方法有效地减轻了忘记曲线,保持学生在ECG解释方面的能力.