ECG of the Month: A 44-Year-Old Woman with History of HTN and Nonischemic Cardiomyopathy Presents to ED
A 44-year-old woman with history of hypertension and nonischemic cardiomyopathy presents to the emergency department (ED) with palpitations consistent of a fluttering sensation in her chest, accompanied by dizziness, lightheadedness and fatigue.
Her echocardiogram shows normal LV size and systolic function with LVEF 55 - 60%. Her exercise treadmill myocardial perfusion stress test is negative for inducible ischemia.
The following is her 12 lead electrocardiogram (ECG) during her clinic visit (Figure 1).
The ECG shows which of the following?