›Metolazone 2.5 to 5 mg PO 30 minutes before loop diuretic
›IV chlorothiazide 250 to 500 mg IV
›Acetazolamide adjunct
›500 mg IV daily for 3 days (ADVOR trial evidence)
›Particularly in metabolic alkalosis
›Continuous infusion vs bolus dosing
›Furosemide infusion 5 to 40 mg/hour
›No significant outcome difference vs bolus in DOSE trial
›Higher doses associated with more diuresis
›IV nitroglycerin
›Indication: hypertensive acute HF (SBP > 140 mmHg)
›Preload and afterload reduction
›Rapid symptom relief in flash pulmonary edema
›Dosing
›Start 10 to 20 mcg/minute IV
›Titrate by 10 to 20 mcg/minute every 5 to 10 minutes
›Maximum 200 mcg/minute
›Target SBP reduction 10 to 15 mmHg
›Contraindications
›SBP < 90 mmHg
›PDE5 inhibitor use within 24 to 48 hours
›Severe aortic stenosis (relative)
›IV nitroprusside
›Indication: refractory hypertensive HF or severe MR/AR
›Potent preload and afterload reduction
›Dosing
›Start 0.3 mcg/kg/min IV
›Titrate by 0.5 mcg/kg/min every 5 to 10 minutes
›Maximum 3 to 5 mcg/kg/min
›Arterial line monitoring recommended
›Toxicity concern
›Cyanide toxicity risk with prolonged high-dose use
›Avoid in severe renal or hepatic failure
›Nesiritide
›Recombinant BNP with vasodilatory effects
›2 mcg/kg IV bolus then 0.01 mcg/kg/min infusion
›Not shown to improve mortality (ASCEND-HF trial)
›Limited routine use
Inotropes and vasopressors
›Dobutamine
›Indication: low-output state, cardiogenic shock
›Positive inotrope and chronotrope
›Reduces filling pressures
›Dosing
›Start 2.5 mcg/kg/min IV
›Titrate by 2.5 mcg/kg/min every 5 to 10 minutes
›Usual range 5 to 15 mcg/kg/min
›Maximum 20 mcg/kg/min
›Cautions
›Tachyarrhythmia risk
›Increased myocardial oxygen demand
›Avoid in ischemic etiology if possible
›Milrinone
›Indication: cardiogenic shock, especially on beta-blocker
›PDE3 inhibitor, positive inotropy plus vasodilation
›Preferred in COPD or reactive airway disease
›Dosing
›0.125 to 0.75 mcg/kg/min IV
›No loading dose recommended in most cases
›Dose reduce in renal impairment
›Cautions
›Hypotension risk from vasodilation
›Tachyarrhythmia risk
›Renal clearance adjustment required
›Norepinephrine for refractory hypotension
›Indication: cardiogenic shock with vasodilation component
›Start 0.05 to 0.1 mcg/kg/min IV
›Titrate to MAP >= 65 mmHg
›Central venous access preferred
Guideline-directed medical therapy (GDMT) for HFrEF
›ARNI or ACE inhibitor or ARB
›Sacubitril/valsartan (ARNI) preferred
›Start 49/51 mg BID when tolerating ACEi/ARB
›Target 97/103 mg BID
›36-hour washout required when switching from ACEi
›Contraindicated with ACEi concurrently (angioedema risk)
›Class I recommendation (PARADIGM-HF trial evidence)
›Ramipril (ACEi) if ARNI not tolerated
›Start 2.5 mg BID, target 5 to 10 mg BID
›Losartan or valsartan (ARB) if ACEi intolerant
›Cough or angioedema as ACEi intolerance criteria
›Evidence-based beta-blocker
›Carvedilol
›Start 3.125 mg BID
›Target 25 mg BID (> 85 kg: 50 mg BID)
›Class I recommendation
›Metoprolol succinate
›Start 12.5 to 25 mg daily
›Target 200 mg daily
›Bisoprolol
›Start 1.25 mg daily
›Target 10 mg daily
›Initiate when euvolemic and hemodynamically stable
›Do not initiate in acute decompensation phase
›Mineralocorticoid receptor antagonist (MRA)
›Spironolactone
›Start 12.5 to 25 mg daily
›Target 50 mg daily
›Class I recommendation (RALES trial)
›Eplerenone
›Start 25 mg daily
›Target 50 mg daily
›Preferred in males (less gynecomastia)
›Contraindications
›Creatinine > 221 mmol/l or eGFR < 30 mL/min
›Potassium > 5.0 mmol/l
›SGLT2 inhibitor
›Dapagliflozin
›10 mg PO daily
›Class I recommendation (DAPA-HF trial)
›Benefit regardless of diabetes status
›Empagliflozin
›10 mg PO daily
›Class I recommendation (EMPEROR-Reduced trial)
›Benefits
›Reduces HF hospitalization and cardiovascular death
›Modest diuretic and natriuretic effect
›Slows CKD progression
›Cautions
›Hold during acute illness or surgery
›Genital mycotic infection risk
›Hydralazine and isosorbide dinitrate
›Indication: intolerance to RAAS blockade (Class I)
›Especially in self-identified Black patients as additional therapy
›A-HeFT trial evidence
›Dosing
›Hydralazine 25 to 75 mg TID
›Isosorbide dinitrate 20 to 40 mg TID
›Ivabradine
›Indication: sinus rhythm, HR >= 70 bpm on maximum beta-blocker
›Start 5 mg BID
›Target 7.5 mg BID
›Class IIa recommendation
›Reduces HF hospitalization (SHIFT trial)
›IV iron replacement
›Ferric carboxymaltose IV
›Iron deficiency: ferritin < 100 mcg/L or TSAT < 20%
›Dose by weight and hemoglobin deficit
›Improves symptoms and quality of life (AFFIRM-AHF trial)
›Class IIa recommendation
›Device therapy
›ICD for primary prevention
›LVEF <= 35% after >= 3 months GDMT
›Class I recommendation
›CRT for cardiac resynchronization
›LBBB with QRS >= 150 ms on maximum GDMT
›Class I recommendation
›Improves EF and reduces mortality