Sunday, 6 November 2022

Drugs in Acute Heart Failure

DRUGS FOR ACUTE HEART FAILURE: 
REF: Braunwald12th ed.


VASODILATORS: INITIAL DOSE EFFECTIVE DOSE RANGE
1.Nitroglycerin 20 μg/min 40 - 400 μg/min
2.Nitroprusside 0.3 μg /kg/min 0.3 - 5 μg /kg/min
3.Nesiritide 2 μg /kg bolus 0.010 - 0.030 μg /kg/min
IONOTROPES:
1.Dopamine 4 - 5 μg /kg/min 5 - 20 μg /kg/min
2.Dobutamine 1 - 2 μg /kg/min 2 - 20 μg /kg/min
3.Norepinephrine 0.2 - 1 μg /kg/min
4.Epinephrine 0.05 - 0.5 μg /kg/min
5.Milrinone 25-75 μg /kg bolus over
10 – 20 mins, f/b infusion
0.10 - 0.75 μg /kg/min
6.Levosimendan 12-24 μg /kg bolus over
10 min, f/b infusion
0.5 - 2 μg /kg/min
7.Digoxin 0.5 mg IV 0.25 mg IV or Oral 12 hours after initial dose and continue if needed
DIURETICS:
SEVERITY OF VOLUME OVERLOAD DIURETIC DOSE (mg)
1.Moderate Furosemide 20-40 mg IV or up to 2.5 times oral dose (outpatient dose) IV
Bumetanide 0.5 - 1 mg
Torsemide 10 - 20 mg
2.severe Furosemide 40-160 mg or up to 2.5 times Oral dose
5-40 mg/hr infusion
Bumetanide 0.5-2 mg/hr (Max 2-4 mg/hr)
Torsemide 5-20 mg/hr
Ultrafiltration 200-500 mL/hr
3.Refractory to Loop diuretics Add HCTZ 25-50 mg twice daily
Metolazone 2.5-10mg once daily
Chlorothiazide 250-500 mg IV
500-1000 mg PO
Spironolactone 25-50 mg once daily
4.If alkalosis present Acetazolamide 0.5 mg IV
5.Refractory to Loop & Thiazides Add Dopamine (1-4 μg/kg/min - renal vasodilation)

Dobutamine or Milrinone
Ultrafiltration or Hemodialysis (if associated renal failure present)