title: Sinus bradycardia complicated by extrasystolic ventricular tachycardia with 2:1 retrograde A-V block.
mesh_terms: D000328:Adult; D001146:Arrhythmia, Sinus / Q000150:complications*; D001919:Bradycardia / Q000150:complications; D005117:Cardiac Complexes, Premature / Q000150:complications; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000150:complications*; D006801:Humans; D013614:Tachycardia, Paroxysmal / Q000150:complications*