Stenting is a medical procedure used to treat narrowed or blocked blood vessels, typically arteries, to restore normal blood flow. The procedure involves the placement of a small, mesh-like tube called a stent into the affected vessel.
Here’s how the process generally works:
Preparation: The patient is typically given local anesthesia at the insertion site, often in the groin or wrist, where the catheter will be inserted. In some cases, general anesthesia may be used.
Insertion of Catheter: A thin, flexible tube called a catheter is inserted into a blood vessel and guided to the site of the blockage using imaging techniques such as fluoroscopy or angiography.
Placement of Stent: Once the catheter reaches the narrowed or blocked area of the blood vessel, a deflated balloon attached to the catheter is positioned within the blockage. The balloon is then inflated, expanding the stent and pressing it against the vessel walls. This expansion opens up the narrowed area, allowing improved blood flow.
Stent Deployment: After the stent is expanded, the balloon is deflated and removed, leaving the stent in place to hold the artery open. Some stents are designed to gradually release medication to help prevent re-narrowing of the artery, a process known as drug-eluting stenting.
Monitoring and Recovery: Throughout the procedure, the patient’s vital signs and heart function are monitored closely. After the stenting is complete, the catheter is removed, and pressure is applied to the insertion site to prevent bleeding. The patient is typically observed for a short period before being discharged, often on the same day or after an overnight stay.
Stenting is commonly used to treat coronary artery disease, peripheral artery disease, and other conditions that cause narrowing or blockage of blood vessels. It can help alleviate symptoms such as chest pain (angina), leg pain, and shortness of breath, and may reduce the risk of heart attack or stroke.