title: Wenckebach periods with repetitive block: evaluation with His bundle recording.
mesh_terms: D000328:Adult; D002037:Bundle-Branch Block / Q000503:physiopathology; D004562:Electrocardiography; D004594:Electrophysiology; D006327:Heart Block; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male; D012008:Recurrence; D013771:Tetralogy of Fallot / Q000503:physiopathology