8. Atrial Tachycardia
Published Online: 1 NOV 2012
Copyright © 2013 John Wiley & Sons, Ltd.
Bennett's Cardiac Arrhythmias: Practical Notes on Interpretation and Treatment, Eighth Edition
How to Cite
Bennett, D. H. (2012) Atrial Tachycardia, in Bennett's Cardiac Arrhythmias: Practical Notes on Interpretation and Treatment, Eighth Edition, John Wiley & Sons, Ltd, Oxford. doi: 10.1002/9781118432389.ch8
- Published Online: 1 NOV 2012
- Published Print: 14 JAN 2013
Print ISBN: 9780470674932
Online ISBN: 9781118432389
- Atrial tachycardia;
- AV conduction;
- ECG characteristics;
- Multifocal atrial tachycardia;
Atrial tachycardia can originate from foci within either the right or left atrium, resulting in abnormally shaped, discrete P waves inscribed at a regular rapid rate, except in multifocal atrial tachycardia, which is characterised by an irregular atrial rate with several P wave morphologies. Causes include myocardial damage, respiratory disease and valvular heart disease. Often, atrial tachycaria is idiopathic.
As with atrial flutter, sometimes the atrioventricular (AV) node can conduct all atrial impulses to the ventricles but frequently there is a degree of AV block. Antiarrhythmic drugs may be effective. Troublesome cases require radiofrequency catheter ablation.