Treatment of Heart Failure-Al-Mehdi Flashcards
what must be present for diagnosis of HF
increase in LA pressure (increase in PCWP)
HF mortality rate=
50% w/in 5 years of diagnosis
ischemia-MI
HTN, stenosis
Arrythmias
cause HFrEF
LV hypertrophy
HTN
myocardial fibrosis
cause HFpEF
binds ______ in hypothalamus that then makes POMC (and alpha-MSH)
leptin; arcuate nucleus
alpha-MSH binds ____ receptor on PVN neurons that inhibit______ causing RVLM stimulation and sympathetic activation
MC4 receptors; NTS receptors
what leads to LV workload increasing and maladaptive remodeling and hypertrophy of LV
renin increasing Ang II leading to vasoconstriction and increase in afterload
myocyte hypertrophy/necrosis and perivascular and interstitial fibrosis
concentric remodeling
this leads to ventricular enlargement and systolic/diastolic dysfunction and changes in wall stress
concentric remodeling
1st hit after concentric remodeling where you can still preserve EF
concentric LVH
2nd hit to the heart from MI/myocarditis can lead to what
eccentric LVH dilatation
force holding aortic valve closed
diastolic pressure
what is the same in HFpEF and HFrEF
LVEDP
pathognomonic sign of HF
orthopnea
most common sign of HF
Dyspnea
what causes dyspnea in HF
interstitial pulmonary edema
another sign of HF in lower extremities
pitting edema
what causes increase in PCWP in HF
congestion (pulmonary edema)
muscle mass loss
cachexia
what causes cachexia and can lead to anorexia
TNFalpha increase in CHF
what cytokines also increase in CHF
IL-6 and CRP
lab that is highly pathognomonic of cardiovascular disease
NT-proBNP
biomarker in CVD for myocyte necrosis
Troponin Ic
biomarker in CVD for inflammation
CRP, IL-6
biomarker in CVD for accelerated atherosclerosis
LDL
HbA1c
BG