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Document Details : Title: Pre-excitation syndrome with a change in terminal QRS vector Author(s): R. Liu , J. Chen Journal: Acta Cardiologica Volume: 68 Issue: 2 Date: 2013 Pages: 219-221 DOI: 10.2143/AC.68.2.2967285 Abstract : Most accessory pathways in pre-excitation syndrome are capable of antegrade conduction from atrium to ventricle, and identified by characteristic ECG abnormalities such as a delta wave (ventricular pre-excitation) and a shortened PR interval. Therefore, the traditional diagnosis method is to detect the initial changes of the QRS complex. Here we report a patient initially mistaken as having atrioventricular re-entrant tachycardia (AVRT) and concealed pre-excitation syndrome. A diagnosis of incomplete latent pre-excitation syndrome was established on the basis of differences between the ECGs during sinus rhythm and AVRT in terminal QRS vectors, demonstrated by intracardiac electrophysiological radiofrequency catheter ablation. |
