This site is intended for healthcare professionals

Go to /sign-in page

You can view 5 more pages before signing in

Wenkebach phenomenon

Authoring team

The Wenkebach phenomenon is characterised by the progressive lengthening of the PR interval with successive heart beats, culminating in a non-conducted atrial depolarisation. The next beat has a short PR interval and so the cycle continues.

The level of the block is generally at the level of the atrioventricular node, the QRS complexes are of normal duration and junctional automaticity, in general, is unimpaired.

In patients with myocardial infarction this particular type of heart block is usually benign.

In the healthy individual the Wenkebach phenomenon is often due to increased vagal tone and is abolished by exercise and atropine.


Create an account to add page annotations

Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page

The content herein is provided for informational purposes and does not replace the need to apply professional clinical judgement when diagnosing or treating any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions.

Connect

Copyright 2024 Oxbridge Solutions Limited, a subsidiary of OmniaMed Communications Limited. All rights reserved. Any distribution or duplication of the information contained herein is strictly prohibited. Oxbridge Solutions receives funding from advertising but maintains editorial independence.