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A stent is a small mesh tube that’s used to treat narrowed or weakened arteries in the body.

You may have a stent placed in an artery as part of a procedure called angioplasty (AN-jee-oh-plas-tee). Angioplasty can restore blood flow through narrowed or blocked arteries. Stents help prevent arteries from becoming narrowed or blocked again in the months or years after treatment with angioplasty. You may also have a stent placed in a weakened artery to improve blood flow and to help prevent the artery from bursting.

Stents are usually made of metal mesh, but sometimes they’re made of fabric. Fabric stents, also called stent grafts, are used in larger arteries. Some stents are coated with medicines that are slowly and continuously released into the artery. These medicines help prevent the artery from becoming blocked again.

CRF initiates Harmonizing Outcomes with Revascularization and Stents in AMI II trial

The Cardiovascular Research Foundation (CRF) today announced the initiation of the HORIZONS-AMI II randomized trial, evaluating Promus Element platinum-chromium everolimus-eluting stents versus Omega bare-metal stents in patients with heart attack undergoing primary angioplasty with bivalirudin anticoagulation.

28 Mar 2012

Study reveals clinically relevant differences between on pump and off pump bypass

A large randomized trial comparing bypass surgery done with a heart-lung machine (on pump) and without it (off pump) found no differences in results between techniques overall but some clinically relevant differences, according to research presented today at the American College of Cardiology's 61st Annual Scientific Session.

27 Mar 2012

Minimally invasive treatments re-establish blood flow in people with chronic DVT

Interventional radiology treatments re-establish blood flow in people with chronic deep vein thrombosis (DVT), reducing disabling symptoms and improving the quality of life for those afflicted with post-thrombotic syndrome—an under-recognized but frequent long-term complication of DVT.

27 Mar 2012

UAB cardiac rehab program reduces mortality among people with heart attack

After two heart attacks and 10 stents, Rick Vinson had a decision to make — do nothing and likely die from heart disease like his father or take a chance at having a long life. Vinson chose the latter. After receiving his last stent in October 2010, he entered a cardiac rehab program at the University of Alabama at Birmingham. Since then he has dropped 20 pounds, his cholesterol has dropped to 141 from 315 and his triglycerides are down to 149 from 465.

27 Mar 2012

Carotid artery stenting safe and effective in older adults

Researchers at Thomas Jefferson University Hospital in Philadelphia and a multicenter team of investigators have found that carotid artery stenting (CAS) is safe and effective in patients age 70 and older.

27 Mar 2012

Novel interventional radiology procedure zaps around complicated pancreatic tumors

Results of a study presented at the Society of Interventional Radiology's 37th Annual Scientific Meeting in San Francisco, Calif., signal a light at the end of the tunnel for individuals with inoperable locally advanced pancreatic cancer (LAPC). A new procedure called irreversible electroporation or IRE uses microsecond electrical pulses to force open and destroy tumor cells around a vast and delicate network of blood vessels of the pancreas.

27 Mar 2012

Bolus intracoronary abciximab reduces infarct size in high-risk patients with STEMI

Administration of a bolus dose of the anticoagulant drug abciximab into the coronary artery involved in causing a certain type of heart attack among patients who were undergoing a percutaneous coronary intervention and also receiving another anticoagulant resulted in reduction in the size of damage to the heart muscle at 30 days, while a procedure that involved use of a catheter to remove the blood clot blocking that coronary artery did not produce these results, according to a study appearing in JAMA.

27 Mar 2012

Medtronic Resolute DES found effective through two years

According to new clinical data presented today at ACC.12 -- the 61st Annual Scientific Session & Expo of the American College of Cardiology (ACC) -- the Resolute drug-eluting stent (DES) from Medtronic, Inc. maintains a powerful and persistent treatment effect for a wide variety of patients with coronary artery disease, including those with diabetes mellitus, through two years of follow-up.

From Medtronic 27 Mar 2012

Minimally invasive treatments could target ‘hunger hormone’

A minimally invasive treatment may target hunger at its source, another uses X-ray visible embolic beads to block arteries to the stomach and suppress hunger and a third explores the use of stem cells to repair vertebral disc degeneration. Initial results from all these studies were reported at the Society of Interventional Radiology's 37th Annual Scientific Meeting in San Francisco, Calif.

26 Mar 2012

Percutaneous cryoablation freezes and destroys breast cancer tumors

Individuals fighting metastatic breast cancer, where the disease has progressed to other areas of the body, may finally have another weapon in their arsenal: percutaneous cryoablation.

26 Mar 2012

Multifaceted intervention improves use of evidence-based medicines

Among patients with acute coronary syndromes (such as heart attack or unstable angina) treated at public hospitals in Brazil, implementation of a multifaceted intervention that included educational materials, checklists and reminders resulted in improvement in the use of evidence-based medicines during the first 24 hours of hospitalization, according to a study appearing in JAMA.

26 Mar 2012

Blockages in right coronary artery are most common places for coronary dissection

Researchers from Thomas Jefferson University Hospital discovered that blockages in the right coronary artery and those in bending areas of the coronary artery are the most common places for coronary dissection, a tear in the artery that can occur during balloon angioplasty of the coronary arteries.

26 Mar 2012

Minimally invasive endovascular treatment for CCSVI is safe in patients with MS

Researchers who investigated the connection between chronic cerebrospinal venous insufficiency (a reported condition characterized as a blockage in the veins that drain blood from the brain and spinal cord and returns it to the heart) and multiple sclerosis indicate that a minimally invasive endovascular treatment for CCSVI, is safe and may produce "significant," short-term improvement in physical- and mental health-related quality of life in individuals with MS.

26 Mar 2012

Endovascular aneurysm repair associated with lower mortality rates

A burst aneurysm in the abdominal aorta-the largest blood vessel in the body- is a deadly condition. In fact, about half of these patients don't make it to the hospital in time. Those who do more often than not face open surgery to repair the blood vessel. This study finds that a minimally invasive interventional radiology treatment for ruptured aneurysms called endovascular aneurysm repair is safer than open surgical repair and is associated with lower mortality rates, say researchers Society of Interventional Radiology's 37th Annual Scientific Meeting in San Francisco, Calif.

26 Mar 2012

Angioplasty safe for MS patients with venous abnormalities

Researchers report that performing angioplasty (a treatment that involves temporarily inserting and blowing up a tiny balloon inside a clogged artery to help widen it) on veins in the neck and chest is safe—and may be an effective way to treat the venous abnormalities found in those with multiple sclerosis and provide symptom relief.

26 Mar 2012

New embolization procedure may bring hope to men with enlarged prostate

A new interventional radiology treatment, prostatic artery embolization, may bring hope to men with debilitating symptoms caused by an enlarged prostate, say the group of researchers who pioneered its use.

26 Mar 2012

CVD/MI complications tend to occur within first 30 days after PCI

Percutaneous coronary intervention (PCI), also known as coronary angioplasty or angioplasty, is a procedure used to treat acute coronary syndromes. PCI involves opening a blocked blood vessel by threading and inflating a balloon-tipped tube into the vessel. Sometimes a stent is also inserted to keep the blood vessel open.

26 Mar 2012