heart failure Flashcards
HFpEF aka?
diastolic HF, PSF
HFpEF caused by
hypertrophic walls (stiffness) - LVH, HCM
HFpEF will result in _____ left atrial pressure bc____
Increase; LV not filling
Causes of HFpEF
- increase afterload/pressure overload
- myocardial thickening
- external compression
HFrEF aka
LVSD, systolic HF
HFrEF caused by
DCM (Dilated), decrease inotropy (to meet demands)
Causes of HFrEF
- heart cell destruction
- Overstressed heart muscle
- Volume overload
SIgns of low flow
decrease perfusion to:
kidney, muscle, cerebral, gut
Signs of high L sided Pressure (increase EDV to increase SV comp)
Increase pulmonary venous pressure: Dyspnea excercise orthopnea paraxysmal noctural dyspnea acute pulmonary edema
Difference between orthopnea/paraxysmal noctural dyspnea
Immediate/delayed (intravascular/intersitital)
Signs of high R sided pressure
increase Central venous presssure peripheral swelling ascites hepatic congestion intestinal congestions
Precipitating factor for HF
high circulating volume and pressure, decrease inotropy, arrhthmia, increase metabolic demands, non-adherence with HF medication
Causes of increase circulating volume
retention of Na/water
renal failure
causes of increase pressure/afterload
HTN
Aortic stenosis
PE
causes of Decrease inotropy
MI
Beta/ca blocker
Causes of Arrhythmias that lead to HF
bradycardia
Afib
Increased metabolic demands include
pregnancy, fever, infection
Describe NYHA functional class
asymptomatic, mod exertion, mild, at rest
Describe ACC/AHA HF stages
High risk, structural/no symp, with symp, need intervention
Signs of low flow
cool extremities, tachycardia, low pulse pressure
signs of elevated L sided filling
rales, hypoxia, tachypnea
Signs of right sidded pressure elevated
edema
JVP = CVP = RA pressure increase
Hepatic congestion/hepatomegaly
S3 caused by
Early in diastole - LV opens fast and stops
HFrEF (dialated heart)
S4 caused by
atrial contraction - stiff hypertrophic LV (HFpEF)
NOT in afib
Test for HF includes
CXR, BNP, EKG, Echo, swan/RH catheterization, CMP/CBC, vitals
what is BNP and importance?
B-type natriuretic - from myocardium due to:
ventricular stretch, hyperadrenergic state/RAAS/activation/Ischemia
Negative predictive value
Diuretics for HF bc
decrease Na/Water excretion (volume overload)
Decrease venous congestions
Decrease dyspnea/edema
Neurohormonal antagonists (for HF_EF) includes:
HFrEF
ACEII, ARB
ACEI effects
direct vasodilation
Decrease aldosterone activation
ARB effects
vasodilation, decrease aldosterone activation
ACEI without cough
Examples of ARB
spironolactone, eplerenone
Beta blockers are class __ and includes
II,
Metoprolol, carvedilol, bisoprolol
Inotrope agents
digoxin (Na/K exchanger)
Dobutamine (beta agonist)
Milrinone (PDE inhibitor)