ECG of the Month: 73-Year-Old Male Presents with Increased Frequency of Palpitations
A 73-year-old male presents with a history of hypertension and atrial fibrillation. Coronary artery bypass graft (CABG) was performed three years previously; recent coronary angiography showed all grafts to be patent. He is seen at this time due to an increased frequency of palpitations. An ECG is performed (Figure 1).
The ECG shows which of the following?