A case of wide complex tachycardia with regular fusion beats

A 90-year-old man was admitted with palpitation and chest tightness for 2 h. He was known to have persistent atrial fibrillation (AF) and had a single chamber pacemaker (VVIR) implantation 9 years ago. His echocardiogram, about a year ago, showed moderate left ventricular dysfunction and moderate aortic stenosis.
Source: Europace - Category: Cardiology Source Type: research