Causes
This type of valve narrowing happens over time due to calcium buildup.
What is age-related calcification?
Severe aortic stenosis is diagnosed when blood velocity through the aortic valve is this high or greater.
What is ≥4 m/s?
After blood passes through a severely narrowed aortic valve, it often becomes this type of flow
What is turbulent/disturbed flow?
A valve problem some people are born with, like a bicuspid aortic valve.
What is a congenital abnormal valve
The average pressure difference across the aortic valve that indicates severe stenosis.
What is ≥40 mmHg?
This principle/equation explains how a faster velocity leads to a higher pressure drop across the valve.
What is the Bernoulli Equation?
Damage from untreated strep infections can cause this type of heart valve disease.
What is rheumatic valve disease
The aortic valve area measurement that defines severe stenosis.
What is ≤1.0 cm²?
The formula used to calculate the pressure gradient across a stenotic valve using velocity.
What is ΔP = 4 × (velocity)²?