Spontaneous right bundle branch block during narrow complex tachycardia
Sudipta Mondal1, Nadeem Afroz Muslim1
1Department of Cardiology, The Mission Hospital, Durgapur, West Bengal, India 713212.
Abstract:
A 40-year-old male presented with recurrent episodes of documented narrow complex tachycardia (NCT). Baseline electrocardiogram (ECG) did not reveal any manifest preexcitation. During an electrophysiological (EP) study, he was noted to have spontaneous induction of narrow complex tachycardia during catheter manipulation. The ECG tracings from the EP system showed a spontaneous transition to right bundle branch block in the ongoing tachycardia. What is the likely mechanism of the tachycardia? Clinical trial registration: Not applicable.
More Related Videos
10:17Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System
Published on: April 11, 2025
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
Related Concept Videos
Dysrhythmias IV: Characteristics of Bradyarrhythmias
Disturbances in Heart Rhythm
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
Dysrhythmias III: Characteristics of Dysrhythmias
Dysrhythmias II: Classification of Tachyarrhythmias
Mechanism of Cardiac Arrhythmias
Conduction System of the Heart
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...
