valvular disease Flashcards
most common valve with disease
AO valve
systolic opening measurement for AO valve
3-5 cm2
most common congenital heart defect and cause of AS in adults
bicuspid AO valve
what can AS cause to happen to the LV
pressure overload
increase in LV mass
what you will find on a physical exam for AS
delay carotid upstroke
hersh systolic ejection murmur that radiates to neck
mild AS VMAX/Mean Gradient/AVA
- 2.0-2.9
- mg <25
- ava >1.5
moderate AS VMAX/Mean Gradient/AVA
- 3.0-3.9
- 25-39
- 1.5 - 1
severe AS VMAX/Mean Gradient/AVA
- > 4.0
- > 40
- <1
continuity equation
AVA x AV VTI = LVOT area x LVOT vti
stroke volume for AS
AVA x AV VTI = LVOT area x LVOT VTI
low flow , low gradient AS DD
severe AS
cardiomyopathy
AI causes
- bicuspid or subao stenosis
- marfan or ao dissection
- endocarditis
- rheumatic heart disease
- degenerative
- prosthetic failure
what can AI do to the LV
cause pressure overload for low cardiac output
symptoms of AI
dyspnea
fatigue
LE edema
chest pain
syncope
AI on physical exam
diastolic blowing murmur
left sternal border with patient sitting upward