69 year old male patient monitored during resection of bilateral iliac aneurysms. Patient also has a history of coronary artery disease.
Rhythm analysis indicates atrial flutter with likely muscle tremor artifact. Intraventricular conduction defect is also present.
This encounter shows a regular rhythm with no P waves present. Small 'flutter' or sawtooth waves can be seen. These signs are indicative of atrial flutter or AFL. The atria contract rapidly, with most electrical impulses being blocked before reaching the ventricles. This leads to a very high and unproductive atrial rate, but throttled ventricular rate. Atrial flutter can cause an increased risk of blood clots.
Source: PhysioNet MGH025