Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 8/29/2025

Heart Failure Treatment Guidelines

First-Line Pharmacological Therapy

  • The European Society of Cardiology recommends ACE inhibitors as first-line therapy in patients with reduced left ventricular systolic function, starting with a low dose and gradually titrating up to target maintenance doses shown to be effective in clinical trials 1, 2, 3
  • ACE inhibitors should be administered in combination with diuretics for symptomatic relief, and beta-blockers for all stable patients 1, 2

Diuretic Therapy

  • Diuretics are essential for symptomatic treatment when fluid overload is present, and loop diuretics or thiazides should always be administered in addition to an ACE inhibitor 1, 3, 4
  • For patients with reduced renal function, avoid thiazides except when used synergistically with loop diuretics 1, 2

Beta-Adrenoceptor Antagonists (Beta-Blockers)

  • The European Society of Cardiology recommends beta-blockers for all patients with stable mild, moderate, and severe heart failure with reduced LV ejection fraction, who are already on standard treatment including diuretics and ACE inhibitors 1, 2, 5
  • Beta-blockers reduce hospitalizations, improve functional class, and prevent worsening of heart failure 2

Aldosterone Receptor Antagonists

  • The European Society of Cardiology recommends spironolactone in advanced heart failure in addition to ACE inhibition and diuretics to improve survival and reduce morbidity 1, 5, 6
  • Monitor serum potassium and creatinine carefully when initiating therapy and during dose adjustments 1, 6

Non-Pharmacological Measures

  • Provide patient education about heart failure, symptom recognition, and self-management, and recommend daily physical activity in stable patients to prevent muscle deconditioning 3, 4
  • Control sodium intake when necessary, especially in patients with severe heart failure, and avoid excessive fluid intake in severe heart failure 1, 3

Common Pitfalls and Monitoring

  • When starting ACE inhibitors, avoid excessive diuresis before treatment, and consider reducing or withholding diuretics for 24 hours 1, 2
  • Monitor blood pressure, renal function, and electrolytes 1-2 weeks after each dose increment of ACE inhibitors, at 3 months, and subsequently at 6-month intervals 1, 2