Tachyarrhythmia Tachyarrhythmia: Arrhythmia (abnormal rhythm) with a fast heart rate. Examples are sinus tachycardia, supraventricular tachycardia and ventricular tachycardia.
Primary angioplasty Primary angioplasty: Angioplasty done as primary modality of opening of occluded coronary artery in acute myocardial infarction, without resorting to thrombolytic therapy.