全英文心衰PPT
Causes
Coronary
aCroterroynary
disaeratesery
disease
What causes heart failure
Heart attack
Cardiomyopathy
Overburdened
Compensation reaction
Compensation
reaction
•Cardiac hypertrophy •Compliance decrease
FrankStarling mechanism
Compensatory mechanism of Neurohumor
Types Of Heart Failure
Systolic dysfunction
EF
• A normal EF is generally between 55% and 75%, which means that over half of the blood volume is pumped out of the heart with each beat. Heart failure may occur as the result of a low EF (called systolic heart failure), or from another cause, such as a valve disorder or from diastolic dysfunction. People with diastolic dysfunction can have a normal EF.
When the heart muscle doesn't contract with enough force, there is less oxygen-