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

Dysrhythmias II: Classification of Tachyarrhythmias01:28

Dysrhythmias II: Classification of Tachyarrhythmias

417
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...
417
Insufficient Sleep and Sleep Deprivation01:13

Insufficient Sleep and Sleep Deprivation

782
Insufficient sleep refers to not getting the recommended amount of sleep for optimal functioning, even if it's just slightly less than needed. Sleep insufficiency may occur due to lifestyle choices, such as staying up late for social events or work, resulting in routinely getting less sleep than required. For example, consistently sleeping 6 hours when the body needs 7-9 hours can lead to cumulative effects on health and well-being.
Sleep deprivation is a more severe form of sleep loss...
782
Disturbances in Heart Rhythm01:29

Disturbances in Heart Rhythm

2.4K
Arrhythmia or dysrhythmia refers to an abnormal heart rhythm caused by a defect in the heart's conduction system. It can cause the heart to beat irregularly, too quickly, or too slowly, leading to symptoms like chest pain, shortness of breath, and fainting. Factors such as stress, caffeine, alcohol, nicotine, cocaine, certain drugs, congenital defects, diseases, and electrolyte abnormalities can trigger arrhythmias.
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
2.4K
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

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

394
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...
394
Increased pulse rate01:17

Increased pulse rate

1.0K
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...
1.0K
Coronary Artery Disease III: Clinical Manifestations01:30

Coronary Artery Disease III: Clinical Manifestations

273
Coronary Artery Disease (CAD) is a primary health risk worldwide, leading to significant morbidity and mortality. The condition arises from the buildup of atherosclerotic plaques within the coronary arteries, resulting in diminished blood supply to the heart muscle.The clinical manifestations of CAD vary widely, from asymptomatic stages to severe, life-threatening conditions. Understanding these manifestations is crucial for early diagnosis and effective management.Angina Pectoris: The Warning...
273

You might also read

Related Articles

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

Sort by
Same author

Impact of White Blood Cell Count After Percutaneous Coronary Intervention on Long-Term Prognosis in Patients with Unstable Angina Pectoris: A Single-Center Retrospective Observational Cohort Study.

Vascular health and risk management·2025
Same author

The metabolic function of cyclin D3-CDK6 kinase in cancer cell survival.

Nature·2017
Same author

SIRT3 prevents angiotensin II-induced renal tubular epithelial-mesenchymal transition by ameliorating oxidative stress and mitochondrial dysfunction.

Molecular and cellular endocrinology·2017
Same author

Discovery and Optimization of HKT288, a Cadherin-6-Targeting ADC for the Treatment of Ovarian and Renal Cancers.

Cancer discovery·2017
Same author

Therapeutic effect of Cryptotanshinone on experimental rheumatoid arthritis through downregulating p300 mediated-STAT3 acetylation.

Biochemical pharmacology·2017
Same author

Safety and efficacy evaluation of pertuzumab in patients with solid tumors.

Medicine·2017

Related Experiment Video

Updated: Jan 2, 2026

Author Spotlight: Unveiling the Connection Between Sleep Disorders and Cognitive Symptoms in Depression
04:33

Author Spotlight: Unveiling the Connection Between Sleep Disorders and Cognitive Symptoms in Depression

Published on: April 26, 2024

1.2K

Poor Sleep Quality Associated With High Risk Of Ventricular Tachycardia After Acute Myocardial Infarction.

Shipeng Wang1,2, Hui Gao3, Zewen Ru1

  • 1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, People's Republic of China.

Nature and Science of Sleep
|December 6, 2019
PubMed
Summary

Sleep disorders increase ventricular tachycardia risk in acute myocardial infarction patients. Improving sleep quality and managing sympathetic activity may prevent arrhythmias post-MI.

Keywords:
acute myocardial infarctioncatecholamineheart rate variabilitysleep disordersventricular tachycardia

More Related Videos

Real-time Pressure-volume Analysis of Acute Myocardial Infarction in Mice
07:28

Real-time Pressure-volume Analysis of Acute Myocardial Infarction in Mice

Published on: July 2, 2018

9.5K
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

24.7K

Related Experiment Videos

Last Updated: Jan 2, 2026

Author Spotlight: Unveiling the Connection Between Sleep Disorders and Cognitive Symptoms in Depression
04:33

Author Spotlight: Unveiling the Connection Between Sleep Disorders and Cognitive Symptoms in Depression

Published on: April 26, 2024

1.2K
Real-time Pressure-volume Analysis of Acute Myocardial Infarction in Mice
07:28

Real-time Pressure-volume Analysis of Acute Myocardial Infarction in Mice

Published on: July 2, 2018

9.5K
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

24.7K

Area of Science:

  • Cardiology
  • Sleep Medicine
  • Autonomic Nervous System

Background:

  • Sleep disorders are linked to increased ventricular tachycardia (VT) frequency.
  • The specific association between sleep disorders and VT prevalence in the first week of acute myocardial infarction (AMI) is not well-defined.
  • This study investigates the relationship between sleep quality and VT in AMI patients.

Purpose of the Study:

  • To evaluate the association between sleep disorders and VT prevalence in patients with AMI.
  • To explore potential underlying mechanisms, including autonomic nerve activity and catecholamine levels.

Main Methods:

  • A cross-sectional study involving 303 AMI patients using the Pittsburgh Sleep Quality Index (PSQI).
  • Ambulatory electrocardiography was used to assess heart rate variability (HRV).
  • Plasma catecholamine levels were measured in a subgroup of 80 patients.

Main Results:

  • Poor sleep quality (higher PSQI scores) was positively associated with VT prevalence in AMI patients, even after adjusting for cardiovascular factors.
  • Significant differences in HRV parameters, reflecting autonomic nerve activity, were observed between patients with varying sleep quality.
  • Sleep quality influenced plasma concentrations of adrenaline and norepinephrine in AMI patients.

Conclusions:

  • Sleep status is significantly associated with VT initiation within the first week of AMI.
  • This association is likely mediated by the impact of sleep disorders on sympathetic nerve activity.
  • Improving sleep quality and managing sympathetic hyperactivity may be a strategy to reduce arrhythmias after AMI.