Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Electrocardiogram

Electrocardiogram

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 the T...

Holter Monitor: 24-Hour Monitoring

Holter Monitor: 24-Hour Monitoring

Holter monitoring is a continuous electrocardiography (ECG) recording that tracks the heart's electrical activity over an extended period, generally 24 to 48 hours. This noninvasive diagnostic tool detects irregular heart rhythms that may not be captured during a standard ECG performed in a clinical setting.DeviceThe Holter monitor is a portable, small device connected to several electrodes on the patient's chest. These electrodes detect the heart's electrical signals and transmit them to the...

Dysrhythmias V: Evaluating Dysrhythmias

Dysrhythmias V: Evaluating Dysrhythmias

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...

Pulse rhythm

Pulse rhythm

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 muscle...

Sleep Apnea

Sleep Apnea

Sleep apnea is a condition where breathing stops intermittently during sleep, often leading to significant health issues. Each episode can last from 10 to 20 seconds or more and is frequently accompanied by a brief arousal from sleep. This disturbance, largely unnoticed by the individual, can lead to severe daytime fatigue. Commonly, individuals seek help after being informed by their partners about loud snoring and noticeable breathing pauses during sleep.
The condition is more prevalent among...

You might also read

Related Articles

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

Sort by

Same author

Hippocampal GFAP in aging: Associations with AD and LATE-NC pathologies and cognitive decline in older adults.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2026

Same author

Should weight loss be the first-line treatment for obstructive sleep apnoea? A pro-con debate.

European respiratory review : an official journal of the European Respiratory Society·2026

Same author

Procalcitonin kinetics in Gram-negative bloodstream infections and its value for infection management.

Journal of medical microbiology·2026

Same author

Making the case to highlight the burden of respiratory diseases in Europe.

The European respiratory journal·2026

Same author

Comparison of oxygen desaturation area-based methods in predicting cardiovascular disease-related mortality outcomes.

Frontiers in network physiology·2026

Same author

Focal perimyocarditis masquerading as occlusion myocardial infarction: rapidly dynamic and reciprocal ECG changes.

Acta cardiologica·2026

Search research articles

Related Experiment Video

Updated: Jul 4, 2026

Association Between Sleep Quality and Cognitive Symptoms in Patients with Major Depressive Disorder

Association Between Sleep Quality and Cognitive Symptoms in Patients with Major Depressive Disorder

Published on: April 26, 2024

Electrocardiogram recording as a screening tool for sleep disordered breathing.

Conor Heneghan¹, Philip de Chazal, Silke Ryan

¹School of Electrical, Electronic and Mechanical Engineering, Engineering and Material Sciences Centre, University College Dublin, Belfield, Dublin 4, Ireland. conor.heneghan@ucd.ie

Journal of Clinical Sleep Medicine : JCSM : Official Publication of the American Academy of Sleep Medicine

|July 4, 2008

Summary

An automated electrocardiogram (ECG) tool can help screen for sleep disordered breathing (SDB). While correlated with polysomnography, this ECG-based method offers a limited approach for identifying obstructive sleep apnea.

More Related Videos

Patient Directed Recording of a Bipolar Three-Lead Electrocardiogram using a Smartwatch with ECG Function

Patient Directed Recording of a Bipolar Three-Lead Electrocardiogram using a Smartwatch with ECG Function

Published on: December 11, 2019

Polygraphic Recording Procedure for Measuring Sleep in Mice

Polygraphic Recording Procedure for Measuring Sleep in Mice

Published on: January 25, 2016

Related Experiment Videos

Last Updated: Jul 4, 2026

Association Between Sleep Quality and Cognitive Symptoms in Patients with Major Depressive Disorder

Association Between Sleep Quality and Cognitive Symptoms in Patients with Major Depressive Disorder

Published on: April 26, 2024

Patient Directed Recording of a Bipolar Three-Lead Electrocardiogram using a Smartwatch with ECG Function

Patient Directed Recording of a Bipolar Three-Lead Electrocardiogram using a Smartwatch with ECG Function

Published on: December 11, 2019

Polygraphic Recording Procedure for Measuring Sleep in Mice

Polygraphic Recording Procedure for Measuring Sleep in Mice

Published on: January 25, 2016

Area of Science:

Cardiology
Sleep Medicine
Medical Technology

Background:

Obstructive sleep apnea (OSA) is a prevalent condition associated with significant health risks.
Transient heart rate changes during obstructive apneas have been explored as a potential screening method for sleep disordered breathing (SDB).
Current screening methods often require specialized equipment and dedicated sleep studies.

Purpose of the Study:

To prospectively evaluate an automated electrocardiogram (ECG)-based screening tool for sleep disordered breathing (SDB).
To compare the diagnostic performance of the automated ECG tool against simultaneous polysomnography (PSG).

Main Methods:

An automated algorithm was applied to single-channel ECG data from 92 subjects undergoing overnight polysomnography.
The algorithm estimated the apnea-hypopnea index (AHI).
Likelihood ratios were calculated using established AHI thresholds (<5 for absence, >=15 for presence of SDB).

Main Results:

The automated ECG algorithm demonstrated a positive likelihood ratio of 2.16 and a negative likelihood ratio of 0.08.
The estimated AHI from the ECG correlated highly with the reference AHI from PSG (r = 0.88).
Minor arrhythmias did not significantly affect the algorithm's performance.

Conclusions:

ECG-based assessment offers a straightforward, albeit limited, method for screening individuals for obstructive sleep apnea.
This technology shows potential for preliminary SDB screening but requires further validation.
Further research may refine ECG-based algorithms for improved accuracy in SDB detection.