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Acute heart failure

US recognition, stabilization, congestion treatment, precipitant assessment and transition priorities for acute heart failure.

JurisdictionUnited States
Source check2026-08-20
Clinical reviewiatroX editorial team 路 Clinical editorial review 路 reviewed 2026-08-20 路 due 2027-08-20
AudienceUnited States healthcare professionals
This is an iatroX educational summary of named United States sources, not an official guideline. It does not replace the complete source documents, local policy, specialist advice or clinical judgement. Use the named authority, current FDA labeling, applicable state law, payer rules and local protocol where relevant.

Scope of this summary

Adults with new or worsening heart-failure symptoms requiring urgent or hospital assessment. This page distinguishes congestion with preserved perfusion from respiratory failure, hypotension and cardiogenic shock. It does not provide a stand-alone intensive-care drug or mechanical-circulatory-support protocol.
sources for this section:AHA/ACC/HFSA 2022

The Bottom Line

  • Stabilize airway, breathing and circulation, identify congestion and perfusion, and determine whether cardiogenic shock or another time-critical cause is present.
  • Search for and treat precipitants such as ACS, severe hypertension, arrhythmia, infection, medication or dietary factors, kidney dysfunction and acute valve disease.
  • Use intravenous loop diuretic therapy promptly for significant fluid overload and monitor clinical response, kidney function and electrolytes.
  • Continue or re-establish evidence-based chronic heart-failure therapy when clinically safe; hospitalization is an opportunity to initiate and optimize foundational treatment.
  • Before discharge, resolve the reason for decompensation, confirm euvolemia and a safe oral plan, arrange early follow-up and communicate explicit return precautions.
sources for this section:AHA/ACC/HFSA 2022

Practical clinical workflow

1
Assess oxygenation, blood pressure, mental status, perfusion and respiratory work immediately; obtain ECG, chest imaging and targeted laboratory and cardiac testing.
2
Classify congestion and perfusion, evaluate ejection fraction and review prior heart-failure phenotype, medicines, adherence, weight trend and comorbidity.
3
Treat congestion and the precipitating condition while tracking urine output, symptoms, weight, vital signs, kidney function and electrolytes.
4
Escalate shock, refractory respiratory failure, ischemia, dangerous arrhythmia or mechanical complication to advanced critical-care and heart-failure teams.
5
Transition to an evidence-based oral regimen, education, follow-up laboratory testing and early post-discharge review before leaving hospital.
sources for this section:AHA/ACC/HFSA 2022

Safety boundaries and escalation

  • Hypotension with hypoperfusion, rising lactate, cool extremities, oliguria or altered mental status suggests cardiogenic shock and needs immediate escalation.
  • Severe hypoxemia, frothy pulmonary edema, ACS, sustained ventricular arrhythmia or acute valve catastrophe is not suitable for outpatient diuresis.
  • Monitor kidney function, potassium, magnesium, blood pressure and volume closely; both inadequate and excessive decongestion can cause harm.
  • Do not discharge on an unverified medication list without reconciliation, access assessment, a follow-up plan and clear instructions for recurrent symptoms.
sources for this section:AHA/ACC/HFSA 2022

Localization

Use the 2022 AHA/ACC/HFSA framework together with local US emergency, shock-team and hospital protocols. Access to follow-up, medicines, home monitoring and cardiac rehabilitation must be addressed before discharge.
sources for this section:AHA/ACC/HFSA 2022

Source documents

Use the linked source documents for complete recommendations, evidence grading, exclusions and implementation detail.

  1. American Heart Association, American College of Cardiology, and Heart Failure Society of America2022 AHA/ACC/HFSA Guideline for the Management of Heart FailureDOI 10.1161/CIR.0000000000001063 路 published 2022-04-01 路 accessed 2026-08-20
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