MSRA-0087

A 78-year-old female comes to the cardiology clinic complaining of persistent shortness of breath that is hindering her daily activities. She has a medical history of dilated cardiomyopathy and is currently taking candesartan, bisoprolol, and furosemide. An echocardiogram reveals a left ventricular ejection fraction of 40%. What would be the most suitable long-term treatment to enhance this patient’s prognosis?