A 46-year-old African American woman with pulmonary edema is transferred to your hospital. Her heart rate is 105 beats per minute and regular; her blood pressure is 130/70 mm Hg. Her jugular venous...

A 46-year-old African American woman with pulmonary edema is transferred to your hospital. Her heart rate is 105 beats per minute and regular; her blood pressure is 130/70 mm Hg. Her jugular venous pressure is normal. Her lungs are clear. She has a left ventricular lift and a 3/6 pansystolic murmur at the apex. A summation gallop is present. She has no hepatosplenomegaly, ascites, or edema. Chest radiography is consistent with pulmonary congestion and cardiomegaly. Th e electrocardiogram shows sinus rhythm with a left bundle branch block. Th e echocardiogram shows global hypokinesis, ejection fraction 11%, and severe mitral regurgitation. Coronary angiography is normal. Which of the following treatment options would not prolong this patient’s survival? a. ß –Blockers b. Biventricular pacing c. Isosorbide dinitrate in combination with hydralazine d. Spironolactone e. Digoxin