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Arterial Thrombosis Complications Case 2

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We have a case of a patient

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who presents with a stroke.

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She had systemic TPA, sudden onset of

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not responding and right-sided weakness.

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So, she has what we call left MCA

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syndrome that's being suspected.

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She received her systemic TPA, taken Angio,

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and the whole goal in this particular

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setting is for mechanical thrombectomy.

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So what we see here is essentially this large

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defect, which is important to note.

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But again, we talk about landing

0:28

our plane, so let's land

0:30

our plane after a procedure like this.

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So the right common femoral artery was utilized

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for the procedure, so when we get the angiogram in

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preparation for maybe deploying a closure device.

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So what do we see?

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So we'll look at that again.

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So what we see here is actually just some clots

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and filling defects along the course of our sheath.

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So, what are we concerned about?

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Well, we're worried about thrombosis.

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We don't want our sheath, which is essentially

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something that's in the vessel, that's

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taken up space, to have clot formation.

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You know, when there's greater than 50

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percent reduction in the diameter of the

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artery, that's hemodynamic significance.

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Um, that's a reduction of greater

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than 75 percent of the cross-sectional area.

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So, that's a high risk for occlusion.

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So, we want to be mindful of that,

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as that could

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precipitate thrombosis.

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So after a successful procedure, the thrombus

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actually did not spontaneously resolve.

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So, what are we thinking here?

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It's still present, so what do we want to do?

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So, you know, what was thought by the

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neurointerventionalists is like, okay, we're

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going to remove the access sheath.

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We're just going to apply manual compression,

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and that's what they did.

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They applied it, and it ended up being 40 minutes.

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Presumably that clot was still present and

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they pulled out their access, but they held

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pressure for so long, they had a Doppler

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on the foot, they made sure that there

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was nothing compromised in terms

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of the access, the signal at the foot.

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They made sure that they had access

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and felt that they had a strong pulse

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where they were applying manual compression.

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Um, but again, it lasted for 40

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minutes, but ultimately the patient

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suffered no further complications.

Report

Faculty

Mikhail CSS Higgins, MD, MPH

Director, Radiology Medical Student Clerkships; Director, ESIR

Boston University Medical Center

Tags

Vascular Imaging

Vascular

Ultrasound

Interventional

Iatrogenic

Fluoroscopy

Angiography

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