This 67-year-old man with a long history of coronary artery disease is admitted to the cardiac ward for investigation of frequent angina:

• Atrial fibrillation with frequent premature ventricular complexes (PVCs)
• Onset of ventricular tachycardia (rate 145/min) – One fusion complex. Ventricular rate 101/min
• Incomplete right bundle branch block (iRBBB)
• Septal myocardial infarction, age undetermined
• Lateral myocardial infarction, age undetermined