Atrial flutter
A Regular Tracing Worth a Closer Look
Age, sex, symptoms, and the reason for recording are not supplied.
Look for
- Regular repetitive atrial activity: flutter waves.
- Continuous undulations between QRS complexes.
Where to look. Compare II, III, aVF, and V1; look for flutter waves hidden within T waves or QRS complexes.
A reentry circuit rapidly activates the atria. Only some impulses reach the ventricles, so the ventricular rate can be much slower.
The conduction ratio must be verified on the image before any numerical question.
References & provenance
The ECG Made Easy, 9e, ch. 4, PDF 105–107; Lilly, 6e, ch. 12, p. 295–296.
AtrialFlutter12.JPG — James Heilman, MD — Wikimedia Commons — CC BY-SA 3.0 — https://commons.wikimedia.org/wiki/File:AtrialFlutter12.JPG. Indiquer toute modification. CC BY-SA 3.0
Adaptation: cropping and removal of headers/annotations outside the tracing where applicable; metadata removed. Waveforms have not been redrawn.
Compared with the published source; no independent clinical validation is claimed.
Original annotations & limitations
Flutter auriculaire
A 12 lead ECG showing atrial flutter( OMER FAROOQ )
Pas d’âge, de sexe ou de motif; ne pas attribuer «OMER FAROOQ» au patient. Crédit auteur: James Heilman, MD, selon la fiche.