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Related Concept Videos

Electrocardiogram Fundamentals01:28

Electrocardiogram Fundamentals

653
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...
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Conduction System of the Heart01:19

Conduction System of the Heart

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Autorhythmicity is a term that refers to the heart's inherent ability to generate electrical signals and instigate muscle contractions. This self-regulating conduction system within the heart consists of two key components: the pacemaker cells and specialized conducting cells.
The pacemaker cells are located in two primary nodes: the sinoatrial (SA) node and the atrioventricular (AV) node. The SA node pacemaker cells can autonomously depolarize, triggering an action potential that leads to the...
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Related Experiment Video

Updated: Jul 29, 2025

Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System
10:17

Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System

Published on: April 11, 2025

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Optimizing conduction system pacing lead placement utilizing the image overlay technique.

Rebabonye B Pharithi1,2, Michael Ayeni3, Manoj Makharia1

  • 1Department of Cardiology, Royal Free Hospital, Foundation Trust, London, UK.

Pacing and Clinical Electrophysiology : PACE
|May 24, 2023
PubMed
Summary
This summary is machine-generated.

Repositioning His-bundle pacing leads can be challenging. A new Image Overlay Technique uses imaging to efficiently guide lead placement for better conduction system pacing.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Biomedical Engineering

Background:

Keywords:
His bundle pacingclinical electrophysiologyfluoroscopyimage overlay techniquenon-selective and biventricular pacingpacingtwo lead technique

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  • Conduction system pacing, specifically His-bundle pacing, offers advantages over traditional right ventricular pacing.
  • Optimal lead placement is crucial for achieving desired pacing parameters like sensing, thresholds, and QRS duration.
  • Current methods for repositioning sub-optimally placed His-bundle pacing leads are limited.