Atrial fibrillation
An ECG at Age 54
ECG from a 54-year-old man. Symptoms and the reason for recording are not supplied.
Look for
- Irregularly irregular R–R intervals.
- No repetitive organized P waves.
Where to look. Follow R–R intervals on the rhythm strip; inspect atrial activity in II and V1.
Disorganized atrial activity reaches the ventricles variably, producing irregular R–R intervals. AF can promote an atrial thrombus and embolism; an ECG alone does not prove a clot.
The source ventricular rate is 90/min: AF is not necessarily very fast.
References & provenance
The ECG Made Easy, 9e, ch. 4, PDF 113–114; Lilly, 6e, ch. 12, p. 296–297.
ECG Atrial Fibrillation 90 bpm.jpg
ECG Atrial Fibrillation 90 bpm.jpg — Ewingdo — Wikimedia Commons — CC BY-SA 4.0 — https://commons.wikimedia.org/wiki/File:ECG_Atrial_Fibrillation_90_bpm.jpg. Indiquer toute modification. CC BY-SA 4.0
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
Fibrillation auriculaire
ECG of a 54-year-old male with atrial fibrillation and controlled ventricular response. Heart rate 90 bpm, QT/QTc 348/425 ms
Âge et sexe documentés; motif et symptômes absents.