When is an MRA recommended for heart failure?

When is an MRA recommended for heart failure?

• A. As first-line therapy for all patients
• B. In patients intolerant to ACE inhibitors
• C. In patients with persisting symptoms while on an ACE inhibitor or ARB
• D. Only when diuretic resistance is present

Answer: (C)

In heart failure with reduced ejection fraction, adding a mineralocorticoid receptor antagonist is recommended when patients still have symptoms despite optimized therapy that includes an ACE inhibitor or ARB, along with beta-blocker and diuretic use. This is because aldosterone promotes sodium retention, inflammation, and myocardial remodeling, and blocking its receptor with an MRA like spironolactone or eplerenone reduces mortality and hospitalizations in these patients. Trials such as RALES and EMPHASIS-HF showed clear benefits in patients with persistent symptoms (usually NYHA class II–IV) who are already on standard therapy, making this the appropriate step for those who remain symptomatic. MRAs are not first-line for every patient, nor are they reserved only for ACE intolerance, and they’re not solely indicated for diuretic resistance. They require monitoring of potassium and kidney function due to hyperkalemia and renal effects.

In heart failure with reduced ejection fraction, adding a mineralocorticoid receptor antagonist is recommended when patients still have symptoms despite optimized therapy that includes an ACE inhibitor or ARB, along with beta-blocker and diuretic use. This is because aldosterone promotes sodium retention, inflammation, and myocardial remodeling, and blocking its receptor with an MRA like spironolactone or eplerenone reduces mortality and hospitalizations in these patients. Trials such as RALES and EMPHASIS-HF showed clear benefits in patients with persistent symptoms (usually NYHA class II–IV) who are already on standard therapy, making this the appropriate step for those who remain symptomatic.

MRAs are not first-line for every patient, nor are they reserved only for ACE intolerance, and they’re not solely indicated for diuretic resistance. They require monitoring of potassium and kidney function due to hyperkalemia and renal effects.