Heart Failure Flashcards
two ways that someone dies from HF
arrhythmia or pump failure
HFrEF impairment on cardiac function
systolic dysfunction, decreased contractility
HFrEF ejection fraction
EF<40% w symptoms
HFrEF main cause
CAD
HFpEF impairment on cardiac function
diastolic dysfunction, impairment on ventricle filling/relaxing
HFpEF ejection fraction
EF >50% w symptoms
HFmrEF
mildly reduced 41-49%
HFimpEF
improved >40% but previously HFrEF
preload
venous return, LV end diastolic volume
afterload
wall stress
drugs to reduce preload
SGLT2, diuretics
drugs to reduce afterload
ACE, ARB, ARNI, SGLT2, vasodilators
drug classes that induce HF
positive inotropes, cardiotoxins, sodium/water retention
positive inotropes that induce HF
beta blockers, antiarrhythmics, CCB (dilt, verap), itraconzole
direct cardiac toxins that induce HF
doxorubicin, epirubicin, daunomycin, -ibs, ethanol, cocaine, amphetamines, blue cohosh
sodium load/water retention drugs that induce HF
glucocorticoids, androgens, estrogens, NSAIDs, cox2 inhibitors, -glitazone, sodium containing drugs
signs / symptoms pulmonary congestion (wet)
exertional dysopnea (DOE), orthopnea, paroxysymal nocturnal dyspnea (PND), bendopnea, rales, pulmonary edema
NYHA Class I
cardiac disease without limitations of physical activity
NYHA Class II
cardiac disease with slight limitations of physical activity
NYHA Class III
cardiac disease with limitations of physical activity
NYHA Class IV
cardiac disease with inability to cary on physical activity without discomfort
AHA Stage A
High risk developing HF (HTN, CAD, DM)
AHA Stage B
structural heart disease but no HF sx (fibrosis, MI hx)
AHA Stage C
HF symptoms or prior
AHA Stage D
advanced structural heart disease and symptoms at rest despite max therapy
Stage A therapy
ACE/ARB
Stage B therapy
ACE/ARB, beta blocker
Stage C therapy
ARNI/ACE/ARB
beta blocker
SGLT2
MRA
loop diuretic for volume overload
do diuretics reduce mortality?
no
who should receive loop diuretics?
if experiencing volume overload, want lowest dose possible
MOA loop diuretics
increase sodium and water excretion by reducing absorption at ascending limb
loop diuretics release ____ which _____
prostaglandins, increase renal blood flow
loop diuretics are blocked by what
NSAIDS