67 year old male patient monitored during esophagogastrectomy. Patient has a history of sepsis and aspiration.
Rhythm analysis indicates atrial fibrillation which converts into supraventricular tachycardia.
This encounter starts in atrial fibrillation, indicated by an irregular rhythm with no P waves and the presence of 'flutter waves'. AFib then converts into supraventricular tachycardia (SVT) at a rate of ~135 bpm. SVT can be distinguished from sinus tachycardia by its sudden onset and ending.
Source: PhysioNet MGH030