Related Experiment Video
Updated: Jan 13, 2026

Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System
Published on: April 11, 2025
A Rare Case of RNRVAS Termination and Re-Initiation Visualized on a 12-Lead ECG
Tomoyoshi Morioku1, Yasuyuki Egami2, Yasuharu Matsunaga-Lee2
1Clinical Engineering Technologist Osaka Rosai Hospital Osaka Japan.
Abstract:
This case illustrates both termination and re-initiation of repetitive non-reentrant ventriculoatrial synchrony (RNRVAS) visualized on a standard 12-lead ECG. It highlights how pacemaker algorithms such as VIP and PVC response, together with abnormal atrial refractoriness, can trigger or terminate RNRVAS.
More Related Videos
06:57Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction
Published on: January 31, 2019
09:13Remote Magnetic Navigation for Accurate, Real-time Catheter Positioning and Ablation in Cardiac Electrophysiology Procedures
Published on: April 21, 2013
Related Concept Videos
Dysrhythmias V: Evaluating Dysrhythmias
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias
Electrocardiogram
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
ECG Interpretation of Rhythms
Components of the Electrocardiogram
The primary components of a normal ECG waveform in Normal sinus rhythm(NSR) include the P wave, PR interval, QRS complex, ST segment, T wave, and occasionally a U wave.
ECG waveforms are divided by vertical and horizontal lines at standard intervals.
The horizontal axis measures time and rate, and the vertical axis measures amplitude or voltage....
Electrocardiogram 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...
Cardiomyopathy IV: Restrictive Cardiomyopathy