ECG of the Month: A 77-Year-Old Woman Presents with Increasing Fatigue and Dyspnea
A 77-year-old woman with a history of hypertension, hypothyroidism and leg edema presents with increasing fatigue and dyspnea. An echocardiogram done two years ago demonstrated a left ventricular ejection fraction (LVEF) of 60% with diastolic dysfunction. An electrocardiogram (ECG) is performed (Figure 1).
The ECG shows which of the following?