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- Title
Diagnostic Approach to Narrow Complex Tachycardia with VA Block.
- Authors
Hamdan, Mohamed H.; Page, Richard L.; Scheinman, Melvin M.
- Abstract
Narrow complex tachycardia with VA block is rare. The differential diagnosis usually consists of (1) junctional tachycardia (JT) with retrograde block; (2) AV nodal reentrant tachycardia (AVNRT) with proximal common pathway block; and finally (3) nodofascicular tachycardia using the His-Purkinje system for antegrade conduction and a nodofascicular pathway for retrograde conduction. Analysis of tachycardia onset and termination, the effect of bundle branch block on tachycardia cycle length, and the response to atrial and ventricular premature depolarization must be carefully done. Making the correct diagnosis is crucial as the success rate in eliminating the tachycardia will depend on tachycardia mechanism.
- Subjects
TACHYCARDIA; ARRHYTHMIA; HEART diseases; DIFFERENTIAL diagnosis; PURKINJE cells; DIAGNOSIS
- Publication
Pacing & Clinical Electrophysiology, 1997, Vol 20, Issue 12, p2984
- ISSN
0147-8389
- Publication type
Article
- DOI
10.1111/j.1540-8159.1997.tb05470.x