Congestive Heart Failure Flashcards
Congestive heart failure is not a _______
disease it is a complication of other diseases A SYNDROME
Congestive Heart failure is due to
serious heart disease (endpoint of serious heart disease)
Congestive heart failure results in
cardiac, pulmonary & systemic congestion
Etiology of congestive heart failure (major ones)
- CAD
- uncontrolled hypertension
- cardiomyopathy
- valvular disease
- MI
- excessive cardiac workload
- volume overload
Most important risk factors to target for prevention of congestive heart failure
- Ischemic heart disease
- Hyperlipidemia
- smoking
- low ejection fraction
normal healthy heart can increase CO apporx
5x @ resting level (this is called cardiac reserve)
When in heart failure
cardiac reserve used at rest
Patho of left sided heart failure
- Left ventricle fails to eject sufficient volume
- Residual volume develops in left ventricle
- Left atrium pumps harder to empty blood into left ventricle
- fails to empty full
- residual volume in Left atrium
- Left atrium unable to receive full pulmonary return
- pulmonary congestion & edema
- Right ventricle workload increases
- Right ventricle hypertrophy (to meet demand)
left sided heart failure
- failure to eject into systemic circuit
- results in inadequate cardiac output
- pooling into pulmonary circuit
- leads to pulmonary congestion & pulmonary edema
with left sided heart failure the heart fails to eject into
systemic circuit
left sided heart failure leads to
pulmonary congestion & pulmonary edema
Right sided heart failure
- Failure to eject into pulmonary circuit
- pooling in systemic circuit
- causes peripheral edema & abdominal distention
with right sided heart failure heart fails to eject into
pulmonary circuit
right sided heart failure causes
-peripheral edema & abdominal distention
right sided heart failure normally follows
left sided failure