Aortic Valve Flashcards
Diagnosis?
![](https://s3.amazonaws.com/brainscape-prod/system/cm/151/436/229/q_image_thumb.png?1659534579)
Unicuspid AV
most common cusps to fuse in BAV?
R & L
Diagnosis of this descending Ao doppler?
![](https://s3.amazonaws.com/brainscape-prod/system/cm/151/624/383/q_image_thumb.png?1659534704)
Coarctation
is family screening needed for BAV?
yes
Quadricuspid AV leds to more AI or AS?
AI
AVA, Mean Grad, velocity associated with severe AS?
<1cm2
>40
>4m/s
if your peak velocity across AV is 4m/s but your AVA is 1.5cm2, is it mod or sev AS?
severe. Go with velocity>4m/s.
what syndrome is supra-valvular AS associated with?
Williams-Beuren Syndrome (look for hypercalcemia w/ elfin facies)
what is 90% of subvalvular AS caused by?
Discrete fibrous mem
VC width indicating severe AR?
>6mm
RVol, RF, ERO for moderate AS
RVol 30-59 cc
RF 30-49%
ERO .1-.29 cm2
PHT indicating severe AR
<250 ms
if you place PW sample in flow convergence area (too close to AV), what happens to your calculation of AVA?
overestimates AVA
(PW will show super-high velocities, and it’ll be so close to AV that you’ll see the AV opening/closing)
Eq’n for AS dimensionless index and vaue indicating severe AS?
LVOT TVI/AV TVI
<0.25
in a dobutamine study, how much should SV increase by? name 4 other endpoints
20%
AVA<1
MG>30
SV plateaus
dobutamine @ 20