Increasing pace mapping properties in parahissian premature ventricular contraction. Novel insight from HD grid multipolar catheter

Premature extrastimulus pace-mapping to identify the origin of ventricular premature depolarizations☆

Introduction Frequent premature ventricular depolarizations (VPDs) may lead to the development of dilated cardiomyopathy, which is reversible with catheter ablation. Closely coupled VPDs have also been shown to trigger polymorphic ventricular tachycardia. Twelve-lead electrocardiogram morphology and pace-mapping are useful clinical tools for localization of the site of origin of VPDs, particula...

Classification of Premature Ventricular Contraction in ECG

Cardiac arrhythmia is one of the most important indicators of heart disease. Premature ventricular contractions (PVCs) are a common form of cardiac arrhythmia caused by ectopic heartbeats. The detection of PVCs by means of ECG (electrocardiogram) signals is important for the prediction of possible heart failure. This study focuses on the classification of PVC heartbeats from ECG signals and, in...

Functional Pace-Mapping Responses for Identification of Targets for Catheter Ablation of Scar-Mediated Ventricular Tachycardia

Background—Myocardial scars harbor areas of slow conduction and display abnormal electrograms. Pace-mapping at these sites can generate a 12-lead ECG morphological match to a targeted ventricular tachycardia (VT), and in some instances, multiple exit morphologies can result. At times, this can also result in the initiation of VT, termed pace-mapped induction (PMI). We hypothesized that in patie...

Catheter Ablation of Parahisian Premature Ventricular Complex

Catheter ablation is performed in selected patients with a symptomatic premature ventricular complex (PVC) or PVC-induced cardiomyopathy. Ablation of PVC from the His region has a high risk of inducing a complete atrioventricular block. Here we report successful catheter ablation of a parahisian PVC in a 63-year-old man.

Premature ventricular contraction-induced symptomatic slow pathway conduction successfully treated by catheter ablation.