
Heart Failure - high yield
Universal Definition and Classification of Heart Failure:
- Heart Failure is a clinical syndrome with current or prior symptoms and/or signs caused by structural and/or functional cardiac abnormality
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Corroborate by at least 1 of the following:
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high natriuretic peptide levels
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objective evidence of cardiogenic pulmonary or systemic congestion
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Heart Failure stages have been revised to emphasize the symptomatic nature of HF as a clinical syndrome
At risk for HF (Stage A):
Patients at risk of HF but w/o current or prior symptoms or signs of HF and w/o structural cardiac changes or high biomarkers of heart disease
Pre‐HF (new) (Stage B):
Patients w/o current or prior symptoms or signs of HF w/ evidence: structural heart disease, abnormal cardiac function, high natriuretic peptide or troponin
Symptomatic HF (Stage C):
Patients with current or prior symptoms or signs of HF caused by a structural and/or functional cardiac abnormality
Advanced HF (Stage D): Severe symptoms and/or signs of HF at rest, recurrent hospitalization despite GDMT, refractory or intolerant to GDMT, requiring advanced therapies, mechanical circulatory support, or palliative care
Classification by Ejection Fraction
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HF w/ reduced EF (HFrEF) is HF with LVEF < 40%
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HF w/ mildly reduced EF (HFmrEF) is HF with LVEF 41-49%
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HF w/ preserved EF (HFpEF) is HF w/ LVEF > 50%
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HF w/ improved EF (HFimpEF) is HF w/ baseline LVEF of <40% , a 10-point increase from baseline LVEF, and a 2nd LVEF of > 40%
Acute decompensated heart failure - key point
What are the three most common loop diuretics for acute decompensated heart failure?
Answer: Furosemide, Torsemide, Bumetanide
Different strategies to monitor short-term responsiveness to IV loop diuretics
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Urine output (goal > 150 ml/hr)
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Urine sodium (goal > 50-70 mEq/L)
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If the goal urine output is < 150 ml/hr or the spot urine sodium is < 50 mEq/L two hours after the initial IV diuretic dose, then the dose should be doubled and the parameters re-checked.
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When the goals are met, the same dose can be administered every 6-12 hours until volume overload resolves.