Review Question - QID 107593

A 45-year-old woman from Mexico comes to your office due to recent shortness of breath. The patient states that she has recently started having trouble breathing when she is working out, but this resolves when she rests for a while. She states that she has no history of diabetes, heart disease, or hypertension, but does state that she had several colds when she was growing up that weren't treated with antibiotics. Furthermore, she has arthritis in one of her knees and both wrists. On exam, her vitals are normal, but there is a mid-diastolic rumble present at the apex. What is the best definitive treatment for this patient?