8. Atrial Tachycardia

  1. David H. Bennett MD FRCP

Published Online: 1 NOV 2012

DOI: 10.1002/9781118432389.ch8

Bennett's Cardiac Arrhythmias: Practical Notes on Interpretation and Treatment, Eighth Edition

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

Author Information

  1. Senior Consultant Cardiologist, University Hospital of South Manchester, Manchester, UK

Publication History

  1. Published Online: 1 NOV 2012
  2. Published Print: 14 JAN 2013

ISBN Information

Print ISBN: 9780470674932

Online ISBN: 9781118432389

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Keywords:

  • Atrial tachycardia;
  • AV conduction;
  • ECG characteristics;
  • Multifocal atrial tachycardia;
  • Treatment

Summary

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.