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Related Concept Videos

Holter Monitor: 24-Hour Monitoring01:23

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...
Pulse rhythm01:30

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...
Electrocardiogram01:29

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...
Electrocardiogram Fundamentals01:28

Electrocardiogram Fundamentals

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 to...
Dysrhythmias V: Evaluating Dysrhythmias01:30

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...
Imaging Studies for Cardiovascular System I:Echocardiography01:17

Imaging Studies for Cardiovascular System I:Echocardiography

Cardiac imaging studies encompass a wide range of noninvasive and minimally invasive techniques designed to visualize the heart's structure and function in detail. One such technique is echocardiography, which uses high-frequency ultrasound waves to produce detailed images of the heart, known as echocardiograms.
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion, evaluates...

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Related Experiment Video

Updated: May 14, 2026

Ambulatory ECG Recording in Mice
08:00

Ambulatory ECG Recording in Mice

Published on: May 27, 2010

Ambulatory electrocardiology.

Iñaki Romero1

  • 1The Holst Centre/imec, Eindhoven, The Netherlands. inaki.romero@yahoo.com

Cardiology in Review
|February 21, 2013
PubMed
Summary
This summary is machine-generated.

Norman Holter's invention revolutionized cardiac monitoring. Modern ambulatory cardiac monitors are smaller, longer-lasting, and use advanced algorithms for remote, real-time heart activity analysis.

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

Last Updated: May 14, 2026

Ambulatory ECG Recording in Mice
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Patient Directed Recording of a Bipolar Three-Lead Electrocardiogram using a Smartwatch with ECG Function
05:03

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

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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

Area of Science:

  • Cardiology
  • Biomedical Engineering
  • Medical Informatics

Background:

  • The invention of the Holter monitor 50 years ago enabled long-term heart activity recording.
  • Rapid advancements in electronics have transformed cardiac disease diagnosis and management.
  • Ambulatory cardiac monitors have evolved into wearable or implantable devices capable of continuous monitoring for extended periods.

Observation:

  • Modern ambulatory cardiac monitors are significantly reduced in size, allowing for wearable or implantable use.
  • Telecommunication systems enable remote access to cardiac event data, facilitating timely clinical responses.
  • Advances in computing and algorithms are enhancing the automatic interpretation of electrocardiographic signals.

Findings:

  • The evolution of ambulatory cardiac monitoring represents a paradigm shift in cardiac care.
  • Current technologies offer continuous, long-term monitoring with remote data access and sophisticated signal analysis.
  • The integration of computing power and algorithms expands the clinical utility of these devices.

Implications:

  • Wearable and implantable cardiac monitors improve patient outcomes through early detection and intervention.
  • Remote monitoring capabilities enhance healthcare accessibility and efficiency.
  • Future developments promise even more sophisticated diagnostic and management tools for cardiac conditions.