Fibrillation waves

Fibrillation waves make the baseline irregular. They can be fine or coarse (>1 mm). These waves are caused by Atrial Fibrillation. They can be easily confused with baseline artefact, which can also make the baseline look irregular.

See also: P wave

Can you add to the information on this page?

This ECG Archive is an academic, non-commercial #FOAMed project aiming to crowdsource a free open access database of ECGs and signs. If you include your personal details such as your name you will be attributed for your contribution, unless you tell us that you don't want this to happen. Personal contact details such as email addresses will not be published but may be used to email you in reply. Full project details and participant information available here.

Featured Example


ECG Library (2)

Sort by:
In the ECGquest archives, this ECG has been tagged with: - Syncope 12-Lead Fibrillation waves Normal rate Atrial fibrillation Sick sinus syndrome Dr Smith's ECG Blog CC BY-NC
Syncope and Atrial fibrillation in a Healthy 70-something Male

This ECG is from a man in his 70s presented with syncope for 20 seconds. He had no past medical history. He recovered fully.