A 78-year-old woman is presented to the cardiologist during routine examination and complains of fatigue and intermittent lightheadedness. Her pulse rate is noted to be slow and an ECG is obtained. Patient history The woman has coronary artery disease and previous coronary artery bypass graft surgery. She has had chronic stable angina of effort and is being treated with an angiotensin-converting enzyme inhibitor, a beta-blocker, and a long-acting nitrate.
What is your diagnosis? *This case is from the Editorial team of Docplexus and is meant for educative purposes only. (The answer is posted in the comment section below!)
