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Pacing artifacts on ECG are commonly encountered in clinical practice. We present a case of an external interference from a chronic retained abdominal generator leading to an ECG manifestation of atria lead malfunction. Careful attention to history and physical examination can identify sources of external pacemaker artifact.Mapping and localizing presystolic Purkinje potentials are crucial for determining the optimal ablation site for fascicular premature ventricular contractions (PVCs). Here we present a case of PVCs originating from t