Acute Decompensated Heart Failure Management

Immediate Triage and Stabilization

The European Society of Cardiology recommends admitting patients to the ICU/CCU immediately based on high-risk criteria, including persistent significant dyspnea, sharp chest pain, and hemodynamic instability risk in Class C heart failure 1, 2, 3
Patients with acute decompensated heart failure and respiratory distress should be monitored for persistent significant dyspnea, with a cough that "takes his breath away" being a cardinal symptom of pulmonary edema 4
Sharp chest pain suggesting possible acute coronary syndrome or pulmonary edema requires immediate evaluation, including ECG and cardiac biomarkers 2

The European Heart Society recommends monitoring transcutaneous oxygen saturation (SpO2) immediately and measuring arterial blood gas, including pH, CO2, and lactate, in patients with acute decompensated heart failure and respiratory distress 1, 2, 3
Oxygen therapy should be initiated if SpO2 <90% or PaO2 <60 mmHg to correct hypoxemia, with a goal of maintaining SpO2 >90% 1, 2, 3
Non-invasive positive pressure ventilation (CPAP or BiPAP) should be considered if respiratory rate >25 breaths/min or SpO2 <90% to decrease respiratory distress and reduce mechanical intubation risk 1, 2, 3

The European Society of Cardiology recommends administering IV furosemide 40-80 mg immediately, with higher doses considered for patients likely on chronic diuretics given Class C heart failure 5
Urine output, renal function, and electrolytes should be monitored closely in patients receiving diuretics, with a goal of maintaining potassium levels between 4.0-5.0 mmol/L 5

The European Journal of Heart Failure recommends ruling out pulmonary edema first in patients with chronic cough, as it is a cardinal symptom of pulmonary edema and must be excluded before considering ACE inhibitor-related cough 6, 4, 7
A chest X-ray should be performed immediately to look for pulmonary venous congestion, cardiomegaly, peri-bronchial cuffing, and pleural effusion, with BNP or NT-proBNP levels obtained to support diagnosis of acute heart failure 9

Blood chemistry (urea, creatinine, K+) should be monitored every 4-6 hours initially in patients receiving ACE inhibitors and diuretics, with acceptable parameters including creatinine increase up to 50% above baseline or 266 μmol/L (3 mg/dL) and potassium 4.0-5.5 mmol/L 6, 4
The European Journal of Heart Failure recommends stopping ACE inhibitors and seeking specialist advice if potassium >5.5 mmol/L, creatinine increases >100% or >310 μmol/L (3.5 mg/dL), or eGFR <20 mL/min/1.73 m² 6, 4, 7