Saving Hearts (One Stent at a Time. See Angioplasty & Stent Placement)

Brainiac Breakdown

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Transcript

00:00An angioplasty and stent placement opens blocked arteries.

00:05The procedure requires a cardiac catheterization.

00:10Now we're inside a heart artery.

00:13Here's the plaque that's blacking the flow of blood.

00:16And here comes the catheter.

00:18It has a balloon at its dip.

00:21Wrapped around the balloon is a tiny wire mesh cylinder called a stent.

00:27Once the balloon is in place, the doctor inflates it.

00:31As the balloon expands, the stent around it expands two together.

00:35The balloon and stent squash the plaque against the walls of the artery, making more room for

00:40the blood to flow.

00:44Then the balloon is deflated, but notice the stent remains expanded.

00:49It's still holding the artery open.

00:51The catheter and balloon are pulled out of the artery and out of the body, but the stent

00:56remains in place inside the artery, keeping it open.

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