Show Summary Details
Page of

Supraventricular (narrow complex) tachycardias 

Supraventricular (narrow complex) tachycardias
Chapter:
Supraventricular (narrow complex) tachycardias
Author(s):

Julio Martí-Almor

DOI:
10.1093/med/9780198759935.003.0012_update_001

Update:

Tables 4.2.2, 4.2.3, and 4.2.4 extensively updated

Further reading added

Updated on 29 July 2020. The previous version of this content can be found here.
Page of

PRINTED FROM OXFORD MEDICINE ONLINE (www.oxfordmedicine.com). © Oxford University Press, 2020. All Rights Reserved. Under the terms of the licence agreement, an individual user may print out a PDF of a single chapter of a title in Oxford Medicine Online for personal use (for details see Privacy Policy and Legal Notice).

date: 25 October 2020

Supraventricular tachycardia (SVT) includes all tachycardia rhythms (more than 100 bpm), of which the mechanism involves the His Bundle or tissues above it. Usually, these tachyarrhythmias present a narrow QRS complex (except in the presence of a bundle branch block or a manifest accessory pathway which conducts anterogradely to cause a ventricular pre-excitation pattern on the electrocardiogram). This chapter only focuses on narrow QRS complex SVT involving the atrial tissue, the atrioventricular node, and accessory pathways. Atrial fibrillation and atrial flutter are excluded because they are specifically covered in other chapters. The role of antiarrhythmic drugs in SVTs is mainly restricted to acute situations because ablative therapy has surrogate pharmacotherapy and ablation is considered the best long-term treatment for most cases. Nevertheless, it is very important to know how to deal with antiarrhythmic drugs in emergency situations.

Access to the complete content on Oxford Medicine Online requires a subscription or purchase. Public users are able to search the site and view the abstracts for each book and chapter without a subscription.

Please subscribe or login to access full text content.

If you have purchased a print title that contains an access token, please see the token for information about how to register your code.

For questions on access or troubleshooting, please check our FAQs, and if you can't find the answer there, please contact us.