Premature ventricular contractions with two QRS morphologies originate from one focus in great cardiac vein
نویسندگان
چکیده
It has been demonstrated that catheter ablation may be a reliable technique for curing ventricular arrhythmias originating from the great cardiac vein (GCV), and there are some challenges and risks with this therapeutic method. Although some reports described successful catheter ablation of ventricular tachycardias originating from the GCV, premature ventricular contractions (PVCs) with left bundle branch block (LBBB) and right bundle branch block( RBBB) with a right inferior axis originating from a single focus in the GCV has rarely been reported.
منابع مشابه
Two Different Left Bundle Branch Block Patterns of Premature Ventricular Contraction Originating from Right Coronary Cusp
Premature ventricular contractions (PVCs) or ventricular tachycardia (VT), with QRS morphologies of left bundle branch block (LBBB) and inferior axis can be ablated successfully from the right ventricular outflow tract (RVOT). However, it is not uncommon that PVCs or VT assumed to originate from the RVOT actually arise from the aortic root because of the proximity of the RVOT to the aortic root...
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A 50-year-old man with idiopathic premature ventricular contractions (PVCs; PVC 1, Figure 1A) and ventricular tachycardias (VTs) was referred for catheter ablation. Activation and pace mapping were performed at multiple sites in the right and left ventricular outflow tracts (RVOT and LVOT) (Figure 1). Nonirrigated radiofrequency (RF) applications delivered in the left coronary cusp where pacing...
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