Ventricular pseudo-bigeminy.
D001145:Arrhythmias, Cardiac / Q000209:etiology*; D002037:Bundle-Branch Block / Q000150:complications; D005117:Cardiac Complexes, Premature / Q000150:complications; D004562:Electrocardiography; D006327:Heart Block / Q000150:complications; D010138:Pacemaker, Artificial / Q000009:adverse effects; D013610:Tachycardia / Q000150:complications; D014927:Wolff-Parkinson-White Syndrome / Q000150:complications