Upcoming Events
Log In
Pricing
Free Trial

Device Infection Case Review

HIDE
PrevNext

0:00

With this case,

0:01

we're gonna review a patient who had a TAVR placed and then ended up getting

0:06

a subsequent infection.

0:08

This person unfortunately had a large vegetation,

0:11

which we're gonna take a look at, so you can see the TAVR device in place.

0:15

And then as we scroll in fairly into the device itself,

0:19

you'll notice immediately that you have really thickened prosthetic valve

0:23

leaflets.

0:25

And then as we go more inferiorly and you see that there's this almost mass like

0:29

thickening centrally.

0:32

And then as you continue inferiorly more,

0:35

actually now getting below the level of the leaflets themselves,

0:38

but there's this more of almost like polypoid mass that's

0:43

hanging off the leaflet itself down below the level of the leaflets into the

0:47

left ventricular outflow tract. And that's pretty typical for a vegetation.

0:52

And I just wanna show you that in the coronal images,

0:55

I think it shows up really nicely here. This is the vegetation, uh,

0:59

sitting in the middle of a valve for this particular patient.

1:02

There's associated, like I said, leaflet, thickening everywhere.

1:07

And this is a really extensive case of prosthetic valve

1:12

infection. If you get cine images, then you can look at the motion

1:17

and you would expect to see that the prosthetic valve motion is

1:23

restricted because of all this leaflet thickening.

1:25

And then usually you'll see that vegetation prolapsing in and out of the

1:30

outflow tract throughout the cardiac cycling and see it kind of moves upward

1:33

there and then moves downward.

1:35

So this is a pretty classic case of valve infection. Fortunately,

1:39

these things are quite rare, but when you do see it,

1:42

it's definitely a emergency for the patient and um,

1:46

it will certainly need some IV antibiotics as soon as possible.

1:50

One other thing to point out in this patient,

1:53

he was actually unlucky enough to also have infection of his mitral valve.

1:59

So if you scroll across on these sagal images,

2:02

you'll see that there's a lot of thickening and nodularity here

2:07

along the anteriorly, the mitral valve as well.

2:10

And so he had both infection of his prosthetic aortic valve and

2:15

his native mitral valve.

2:18

I can show that with the N P R as well. Here.

2:23

I'm just gonna change my orientation parallel to the annulus of

2:28

the mitral valve. And you can see here on this short axis image,

2:32

there's all this mitral annular calcification.

2:34

And then in addition to calcification,

2:35

you have all this really nodular soft tissue.

2:38

So this is all infected material within the mitral valve AMB in this patient.

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