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Device Migration Case Review

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This next video,

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I'm gonna go through a case which is an example of device migration.

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In this particular patient while placing the valve,

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they attempted to do a dilation because there was a, a part,

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it was a self-expanding valve and there was a piece of the valve that didn't

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completely expand. And so they went in with a balloon and tried to dilate it in.

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Somehow when they put the balloon in,

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that actually resulted in the valve moving out of position and and migrating.

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What they had to do is then go up with the catheters and retrieve the valve,

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and then they pulled the valve actually closer into the ace aorta into,

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you know what they considered a safe spot below the level of the origins of the

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arch vessels.

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So we can see here as we head down here are the arch vessels in this patient,

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and then here we get into this TAVR device way up high.

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And this is the migrated device, which has been moved into a safe position.

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And then here they went ahead and put in a second valve because obviously the

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first valve wasn't successful,

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so they went ahead again and put in a second valve.

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Now this is not a cardiac aid study, that's why it's a little bit blurry.

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I thought it was a really good example of what can happen with one of these

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valve migrations. I just wanna show you what this looks like on coronal images.

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Here you see on coronal you can see device number one way up

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high.

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So that was the first one that migrated and then was repositioned into a safe

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position of mouse and not how, how sure,

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how far distillate got before the repositioning. But um, nonetheless,

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they put it in the ascending aorta. And then here's the second device,

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which is put in the appropriate location. So not something you see every day.

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This is not a very common complication of tavr, but you know,

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certainly can happen. Very rarely.

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