Triggered activity as the proposed mechanism of left atrial tachycardia induced by premature ventricular beats

• Published in: International journal of cardiology Vol. 34; no. 3; pp. 342 - 345
• Main Authors: HLUCHY, J, MILOVSKY, V, UHLKIARIKOVA, H
• Format: Journal Article
• Language: English
• Published: Shannon Elsevier Ireland Ltd 01.03.1992; Elsevier Science
• Subjects: Atrial tachycardia; Biological and medical sciences; Cardiac Complexes, Premature - complications; Cardiac dysrhythmias; Cardiology. Vascular system; Electrocardiography; Female; Heart; Humans; Medical sciences; Middle Aged; Tachycardia, Paroxysmal - etiology; Tachycardia, Paroxysmal - physiopathology; Tachycardia, Supraventricular - etiology; Tachycardia, Supraventricular - physiopathology; Triggered activity; Triggered activity; Atrial tachycardia; Case study; Human; Electrodiagnosis; Trigger; Arrhythmia; Pathophysiology; Electrocardiography; Cardiovascular disease; Female; Paroxysmal atrial tachycardia; Excitability disorder
• ISSN: 0167-5273; 1874-1754
• DOI: 10.1016/0167-5273(92)90034-Z

In a 57-year-old woman with complex ventricular ectopy, a paroxysmal supraventricular tachycardia initiated by premature ventricular beats is presented. She underwent an electrophysiologic study. The tachycardia origin was localised to the left atrium. At the presence of retrograde dual atrioventricular nodal pathway, the atrial tachycardia was induced by programmed ventricular stimulation. Triggered activity was shown to be the likely mechanism of both atrial and ventricular arrhythmias.