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

4.3K
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...
4.3K
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

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

225
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...
225
Dysrhythmias V: Evaluating Dysrhythmias01:30

Dysrhythmias V: Evaluating Dysrhythmias

169
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...
169
Pulse rhythm01:30

Pulse rhythm

1.0K
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
1.0K
ECG Interpretation of Arrhythmias I: Sinus Arrhythmias01:16

ECG Interpretation of Arrhythmias I: Sinus Arrhythmias

514
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,...
514
Electrocardiogram Fundamentals01:28

Electrocardiogram Fundamentals

1.0K
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...
1.0K

You might also read

Related Articles

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

Sort by
Same author

Clinical phenotyping of chronic insomnia in early childhood: family-history-informed vulnerability profiles in a retrospective chart review.

Sleep medicine·2026
Same author

Artificial Intelligence for Sleep Instability and Motor Phenotyping: Clinical Translation Beyond Sleep Staging.

Sleep·2026
Same author

Sympathetic Activation and Sleep-Related Movements: Integrating Autonomic, Dopaminergic, and Iron Deficiency Mechanisms.

Brain sciences·2026
Same author

An Updated Algorithm for the Management of Restless Legs Syndrome.

Mayo Clinic proceedings·2026
Same author

The future of periodic limb movements during sleep: beyond the periodic limb movement index.

Sleep·2026
Same author

Neurostimulation for restless legs syndrome: A systematic review and meta-analysis.

Sleep medicine reviews·2026

Related Experiment Video

Updated: Nov 1, 2025

Through-the-Wall Blood Sampling Method to Minimize Sleep Disruption in Clinical Settings
06:39

Through-the-Wall Blood Sampling Method to Minimize Sleep Disruption in Clinical Settings

Published on: June 13, 2025

206

Incidental electrocardiogram abnormalities in children undergoing polysomnography.

Ankit Amin1, Maria Paola Mogavero2, Raffaele Ferri3

  • 1University of Washington Department of Pediatrics and Seattle Children's Hospital Seattle, Washington, USA.

Journal of Clinical Sleep Medicine : JCSM : Official Publication of the American Academy of Sleep Medicine
|June 25, 2021
PubMed
Summary

Electrocardiogram abnormalities are uncommon during pediatric polysomnography (PSG) and not linked to cardiac issues or sleep disorders. These incidental findings are more prevalent in male children undergoing PSG.

Keywords:
childrenelectrocardiogramfirst-degree atrioventricular blockpolysomnographypremature ventricular contractionssecond-degree atrioventricular block

More Related Videos

Application of an Amplitude-integrated EEG Monitor Cerebral Function Monitor to Neonates
05:58

Application of an Amplitude-integrated EEG Monitor Cerebral Function Monitor to Neonates

Published on: September 6, 2017

39.8K
Interictal High Frequency Oscillations Detected with Simultaneous Magnetoencephalography and Electroencephalography as Biomarker of Pediatric Epilepsy
10:22

Interictal High Frequency Oscillations Detected with Simultaneous Magnetoencephalography and Electroencephalography as Biomarker of Pediatric Epilepsy

Published on: December 6, 2016

20.6K

Related Experiment Videos

Last Updated: Nov 1, 2025

Through-the-Wall Blood Sampling Method to Minimize Sleep Disruption in Clinical Settings
06:39

Through-the-Wall Blood Sampling Method to Minimize Sleep Disruption in Clinical Settings

Published on: June 13, 2025

206
Application of an Amplitude-integrated EEG Monitor Cerebral Function Monitor to Neonates
05:58

Application of an Amplitude-integrated EEG Monitor Cerebral Function Monitor to Neonates

Published on: September 6, 2017

39.8K
Interictal High Frequency Oscillations Detected with Simultaneous Magnetoencephalography and Electroencephalography as Biomarker of Pediatric Epilepsy
10:22

Interictal High Frequency Oscillations Detected with Simultaneous Magnetoencephalography and Electroencephalography as Biomarker of Pediatric Epilepsy

Published on: December 6, 2016

20.6K

Area of Science:

  • Pediatric Sleep Medicine
  • Pediatric Cardiology
  • Clinical Electrocardiography

Background:

  • Electrocardiogram (ECG) monitoring is standard in pediatric polysomnography (PSG).
  • Limited data exist on the prevalence and nature of ECG abnormalities in children during PSG.
  • This study addresses the gap in understanding incidental ECG findings in pediatric sleep studies.

Purpose of the Study:

  • To report on abnormal electrocardiogram findings identified during pediatric polysomnography.
  • To investigate the association of these findings with cardiac disease and sleep disorders.
  • To determine demographic patterns, such as sex, in children with ECG abnormalities during PSG.

Main Methods:

  • Retrospective review of pediatric polysomnography (PSG) records from a single sleep center.
  • Analysis of ECG findings in children with arrhythmias or conduction disturbances.
  • Comparison of findings between children with atrioventricular block and premature ventricular contractions.

Main Results:

  • Out of 1,235 PSGs, 24 children (1.9%) exhibited ECG abnormalities.
  • No significant difference in obstructive apnea-hypopnea index was found between children with abnormalities and the general PSG cohort.
  • ECG abnormalities were more common in males, particularly those with atrioventricular block.

Conclusions:

  • Incidental ECG abnormalities are rare in pediatric PSG.
  • These findings are generally not associated with underlying cardiac disease or sleep disorders.
  • Male sex is a potential risk factor for observing ECG abnormalities during pediatric PSG.