CHF Flashcards
what is the MC cause of CHF
coronary artery disease
left-sided failure
increased pulmonary venous pressure from fluid backing up into lungs
sx for left-sided failure
pulmonary sx - progressive dyspnea MC, cough, rales, pink frothy sputum (surfactant), wheezing, pleural effusion, Cheyne’s stokes breathing
Think L for left sided and lungs
what is cheyne stoke’s breathing
deeper faster breathing w gradual decrease and periods of apnea
right-sided failure
due to increased systemic venous pressure –> signs of systemic fluid retention; causes systemic vascular congestion
sx right-sided failure
peripheral edema
JVD
GI/hepatic congestion
anorexia
N/V due to GI
hepatosplenomegaly
hepatojugular reflex
systolic HF
decreased EF associated w S3 (filling of dilated ventricles)
diastolic HF
normal/increased EF associated w S4 (atrial contraction into stiff ventricle)
Class 1 HF
no limitation to physical activity
ordinary physical activity does not cause undue fatigue, dyspnea, or anginal pain
class 2 HF
slight limitation of physical activity, ordinary physical activity results in symptoms
class 3 HF
marked limitation of physical activity
comfortable at rest
less than ordinary activity causes sx
Class 4 HF
unable to engage in any physical activity without discomfort
sx may be present even at rest
what will you see on CXR for CHF
Kerley b lines
butterfly/bat wing appearance - bilateral perihilar alveolar edema
cephalization of vessels
cardiomegaly
pleural effusions
pulmonary edema (bilateral interstitial markings)
what is the most useful imaging to assess size and function in heart failure
echocardiography
what will echo show for systolic HF
decreased EF
thin ventricular walls
dilated LV chamber
S3
what will echo show for diastolic HF
normal/increased HF
thick ventricular walls
small LV chamber
S4
BNP and N-terminal proBNP levels that indicate HF is likely
BNP > 100
N-terminal proBNP > 125
BNP levels increase with
age
renal insufficiency
may be decreased on chronic tx
what is indicated if atherosclerosis is suspected in the presence of HF
cardiac cath
what are the cornerstone agents in treating coronary disease
Anti-platelet agents (Aspirin)
what valve is MC affected in endocarditis
Mitral valve (M > A > T > P)
what valve is most commonly affected in endocarditis in IV drug users
tricuspid valve