PP-118 Comparison of Standard and Lewis ECG in Detection of A-V Dissociation in Patients with Wide QRS Tachycardia




Aim


AV disosiation is one of the most specific sign in the differential diagnosis of wide QRS complex tachycardia. However,it has low sensitivity. We aimed to detect visible p wave with high frequency using the Lewis ECG lead during wide QRS complex tachycardia.




Material-Methods


We included 21 patients who do not have inducible aritmia in electophysologic tests. We placed a quadripolar diagnostic catheter in right ventricular apex, then we attempted to find VA wenckebach level afterward. We stimulate at constant rate (300 msn) the RV apex via diagnostic catheter. During the stimulation we recorded both standard 12 lead and Lewis lead ECG.




Material-Methods


We included 21 patients who do not have inducible aritmia in electophysologic tests. We placed a quadripolar diagnostic catheter in right ventricular apex, then we attempted to find VA wenckebach level afterward. We stimulate at constant rate (300 msn) the RV apex via diagnostic catheter. During the stimulation we recorded both standard 12 lead and Lewis lead ECG.

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Nov 30, 2016 | Posted by in CARDIOLOGY | Comments Off on PP-118 Comparison of Standard and Lewis ECG in Detection of A-V Dissociation in Patients with Wide QRS Tachycardia

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