CAD (Congestive / Chronic Heart Failure) Flashcards
What is Congestive/Chronic Heart Failure?
inability of the heart to pump adequate blood through the entire system
CHF results from any structure or functional cardiac disorder that impairs the ventricles ability to ____ or _____ blood.
Fill or eject
“Big-Hearted Friends”
Ventricle walls become too thick (impairs filling)
“Old Underwear”
Thin/stretched out ventricle walls (impairs ejection)
Half of the people who develop heart failure die within how many years?
5
Causes of CHF
-Coronary artery disease
-HTN
-pulmonary HTN (cor pulmonale)
What is Left Sided Heart Failure?
Inability of the left ventricle to pump or eject blood enough blood
What are the 2 types of Left Sided Heart Failure?
Systolic Dysfunction
Diastolic Dysfunction
What is Systolic Dysfunction in Left Sided Heat Failure?
Inability to contract or shorten against a load (weakened heart muscle)
What is Diastolic Dysfunction in Left Sided Heart Failure?
Stiff heart muscle during filling of the ventricle/can’t relax normally
What does the delayed relaxation in diastolic dysfunction L sided HF lead to?
-reduction in ejection fraction
-pulmonary congestion
-pulmonary hypertension
What is the %EF that classifies someone as high risk for HF?
≤40%
What is the primary cause of Left Sided Heart Failure?
Previous MI
Long-standing HTN
Signs/symptoms of Left Sided Heart Failure
Fatigue
Dyspnea
Wet cough
Pulmonary crackles
Edema
What causes Right-sided Heart Failure
Left-sided failure
What is Right-sided Heart Failure?
Enlargement of the right ventricle due to high BP in the arteries and lungs