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Bicuspid Aortic Valve (2 Sinus) Post TAVR Case Review

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In this case,

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we're gonna review that same bicuspid valve case that we saw before with two

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separate sinuses. And now look at the post TTR results.

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So this patient got a self-expanding aortic valve and you can see those

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really chunky calcifications that we visualized on the, uh,

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previous exam, the pre TAVR exam.

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And they're pressing up against the edge of this TAVR device.

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And so I just want to show you how that looks on the short axis images.

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So again, we're gonna go for the coronal image,

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drop our cross hairs at the level of the valve rotate,

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so we're parallel more or less to the valve plane.

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And then do the same for the other long axis image.

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And that allows us to get this nice short axis view

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through the aortic root and the annulus region.

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And you can see here's the top of the TAVR device.

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And as I scroll downward first you can see that the coronaries are open

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and they're well perfused. And then as we go down inferiorly,

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let's take these distance measurements away.

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You can see this big hunk of calcification,

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which is displacing the edges of the TAVR device towards the center.

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So this is resulting in incomplete opposition of

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the TAVR struts to the aortic annulus. Um,

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and you can see there's actually a little bit of a gap underneath of this. Now,

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whether or not this causes actually results in paravalvular leak is something

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that we will figure out based on echocardiography that does a really good job of

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seeing whether there's any retrograde flow on their Doppler assessment.

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It does look like this patient would probably be at high risk for some degree of

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paravalvular leak. You know,

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usually you can find little areas like this where there's, um,

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a gap around the device at the level of the anulus that's concerning.

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So in this particular case, you can see that there's this big hunk of calcium.

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There's this gap down here.

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So it depends a little bit on where that covered portion of the device is gonna

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end up. But certainly you would wonder about this patient having, um,

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paravalvular leak.

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So this is one of the reasons why when we look at patients with bicuspid valves,

2:19

we often find that they have a higher risk of getting para regurgitation.

Report

Faculty

Stefan Loy Zimmerman, MD

Associate Professor of Radiology and Radiological Science

Johns Hopkins Medicine Department of Radiology and Radiological Science

Tags

Vascular

Idiopathic

Congenital

Cardiac valves

Cardiac CT (SCCT Cat B1 Video Case)

Cardiac

CTA

CT

Acquired/Developmental