Related Experiment Video
Updated: Jul 16, 2025
Optocardiography and Electrophysiology Studies of Ex Vivo Langendorff-perfused Hearts
Published on: November 7, 2019
Diagnostic electrocardiographic trap: A case of conduction system pacing
Ewa Świerżyńska1, Artur Oręziak2, Joanna Zakrzewska-Koperska2
11st Department of Arrhythmia, National Institute of Cardiology, 42 Alpejska Street, 04-628 Warsaw, Poland; Doctoral School, Medical University of Warsaw, 61 Zwirki i Wigury Street, 02-091 Warsaw, Poland.
Insights
His-bundle pacing (HBP) offers benefits but carries risks like lead dislodgement. Careful ECG and pacemaker analysis are crucial for effective cardiac pacing, as subtle ECG differences can indicate issues.
Area of Science:
- Cardiology
- Electrophysiology
- Medical Devices
Background:
- His-bundle pacing (HBP) is an emerging cardiac pacing technique.
- Studies suggest HBP may reduce right ventricular heart failure risk compared to traditional methods.
- However, HBP presents challenges including lead dislodgement and capture issues.
Abstract:
His-bundle pacing (HBP) is a relatively new method of cardiac pacing, with recent studies showing an association between HBP and a lower risk of developing right ventricular heart failure compared to classical pacing methods. However, HBP is also associated with a higher risk of lead dislodgement, undersensing, and loss of capture. As such, a detailed assessment of pacing effectiveness in pacemaker patients is vital. In the presented case, an electrocardiogram (ECG) recording seems to present successful selective His-bundle pacing, while pacemaker follow-up demonstrated the loss of ventricular capture. In conclusion, patients receiving HBP should undergo ECG alongside pacing parameter analysis and pacing electrograms, as differences in successful and unsuccessful pacing ECG can be very subtle.
Related Concept Videos
01:29Electrocardiogram
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
01:30Cardiac Action Potential
The cardiac action potential process involves a series of phases characterized by the movement of ions across the cardiac cell membranes, leading to the depolarization and repolarization of the cardiac myocytes.
Ionic Basis of Cardiac Action Potentials
01:25ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias
01:30Dysrhythmias V: Evaluating Dysrhythmias
01:28Electrocardiogram Fundamentals
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...
01:19Electrophysiology of Normal Cardiac Rhythm