What happens if my stent gets blocked?

What happens if my stent gets blocked?

The stent helps keep the artery open. When a part of an artery with a stent gets blocked, it’s called in-stent restenosis (ISR). When a blood clot, or thrombus, forms in a part of an artery with a stent, it’s called an in-stent thrombosis (IST).

Can a total occlusion be stented?

What is a Coronary Chronic Total Occlusion? Coronary arteries with severe blockages, up to 99%, can often be treated with traditional stenting procedure. Once an artery becomes 100% blocked, it is considered a coronary chronic total occlusion, or CTO.

What happens if a coronary artery is occluded?

When one or more of the coronary arteries suddenly becomes completely blocked, a heart attack (injury to the heart muscle) may occur. If the blockage occurs more slowly, the heart muscle may develop small collateral blood vessels (or detours) for other coronary arteries to reroute the blood flow, and angina occurs.

What would cause a stent to collapse?

Immediate stent collapse can be caused by vascular spasm [5] and elastic recoil of the vessel [6].

What causes occlusion of coronary arteries?

Causes & Symptoms of Occlusions Most occlusions are caused by either a blood clot or the buildup of fatty plaque in the arteries (atherosclerosis). A blood clot can form at the site of occlusion, or it can travel from another area through the bloodstream and block an artery. That runaway clot is called an embolism.

What does it mean when an artery is occluded?

An occlusion is a complete or partial blockage of a blood vessel. While occlusions can happen in both veins and arteries, the more serious ones occur in the arteries. An occlusion can reduce or even stop the flow of oxygen-rich blood to downstream vital tissues like the heart, brain, or extremities.

How would you treat an occlusion?

TREATMENT OF VASCULAR OCCLUSION

1. Immediately stop treatment.
2. Assess capillary refill time (CRT).
3. Firmly massage the area.
4. Apply heat.
5. Tap the area.
6. Inject with hyaluronidase.
7. Aspirin.
8. Antibiotics.

Can stents go wrong?

The nearby blood vessels may also get damaged due to the catheter. Blood clotting – A blood clot is the most serious complication that can occur within the stent. Blood clots can lead to severe complications such as heart attack, stroke, and thromboembolism to another part of the body.

What is the failure rate of stents?

A total of 175 (3.3%) stents in 151 (4.3%) patients failed. Failure to deliver the stent to the lesion site was the main cause in 139 patients (92%) and failure either to expand adequately the stent or premature disengagement of the stent from the balloon in only 12 patients (8%).

What causes stents to collapse?