Key result
An electrophysiology study in a 30-year-old man with wide QRS tachycardia induced a regular wide QRS tachycardia with RBBB morphology and a cycle length of 400 ms to determine its mechanism.
Case Report (n=1)
This case report describes the electrophysiological evaluation of a 30-year-old man with wide QRS tachycardia to determine its underlying mechanism.
Single-case EP mapping of wide QRS tachycardia; leaves open mechanistic generalizability and clinical adoption.
A 30 year old gentleman with no structural heart disease has been evaluated for paroxysmal palpitation with documented regular wide QRS tachycardia that has not responded to IV adenosine. Surface electrocardiogram has not shown any pre-excitation. He has been taken for an EP study after informed consent. Diagnostic catheters were placed at coronary sinus (CS), His bundle region and right ventricle (RV). During catheter manipulation a regular wide QRS tachycardia with right bundle branch block morphology (RBBB) with a tachycardia cycle length (TCL) of 400 ms and normal QRS axis similar to the clinical tachycardia got induced (Fig:1). Atrial and ventricular pacing maneuvers were performed during the tachycardia (Fig:2 & Fig:3) before performing basal pacing protocols during sinus rhythm. What is the mechanism of tachycardia? This article is protected by copyright. All rights reserved.
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Nair et al. (2018) conducted a case report in Wide QRS tachycardia (n=1). Electrophysiology study was evaluated on Mechanism of tachycardia. An electrophysiology study in a 30-year-old man with wide QRS tachycardia induced a regular wide QRS tachycardia with RBBB morphology and a cycle length of 400 ms to determine its mechanism.
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