PERIPHERAL AND ARTERY STENTING
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Peripheral and artery stenting is an advanced, minimally invasive procedure used to treat severe blockages in the arteries outside the heart, most commonly in the legs or pelvis. While a balloon angioplasty can successfully stretch a narrowed artery, the blood vessel will sometimes naturally try to recoil or collapse back inward. To prevent this, an interventional cardiologist permanently implants a stent—a tiny, expandable metal mesh tube—inside the artery. Acting as a sturdy, permanent scaffold, the stent holds the vessel wide open, traps the cholesterol plaque against the walls, and ensures a strong, continuous flow of oxygen-rich blood to the limbs, relieving severe pain and preventing amputation without the need for bypass surgery.
1. Indications:
Peripheral and artery stenting is recommended for patients with Peripheral Artery Disease (PAD) when a blockage is severe, heavily calcified, or prone to collapsing. Common indications include:
Leg pain, cramping, or heaviness while walking that limits daily activities (intermittent claudication)
Arteries that recoil, narrow, or tear slightly after a standard balloon angioplasty is performed
Long, complex, or completely blocked segments in the larger arteries of the pelvis (iliac arteries) or thighs (femoral arteries)
Severe pain in the feet or toes while resting due to chronically poor circulation
Non-healing wounds, diabetic foot ulcers, or gangrene (critical limb ischemia)
Patients who are not healthy enough for, or who wish to avoid, major open vascular bypass surgery
By providing permanent structural support to the artery, stenting ensures long-lasting relief from symptoms and dramatically improves mobility and limb health.
2. Procedure:
A peripheral artery stenting procedure is performed in a highly equipped cath lab under local anesthesia. You will remain awake and comfortable, with mild sedation to keep you relaxed. A small puncture is made in an artery, usually in the groin (femoral artery), though the wrist or foot may also be used.
Through this access point, a thin, flexible catheter is gently navigated to the blocked artery using continuous X-ray imaging (fluoroscopy). A microscopic guidewire is carefully passed through the blockage. First, a tiny balloon is inflated to compress the hard plaque and widen the pathway.
Next, a compressed stent—often coated with special medication to prevent future blockages (a drug-eluting stent)—is advanced over the wire to the exact site of the narrowing. The stent is expanded, locking firmly into place against the artery walls. The delivery balloon and catheters are then completely removed, leaving only the stent permanently behind to keep the artery wide open. The procedure typically takes 1 to 2 hours, and most patients are able to walk within a few hours and go home the same or next day.
3. Safety:
Peripheral stenting is a highly safe, effective, and routine procedure when performed by an expert interventional cardiologist. It is far less painful and carries significantly fewer risks than traditional open vascular surgery, allowing for a rapid recovery.
Continuous monitoring of your vital signs is maintained throughout the entire procedure. While complications are uncommon, possible risks include:
- Bleeding, bruising, or a hematoma at the catheter insertion site
- Temporary decline in kidney function due to the contrast dye used for X-ray imaging
- Blood clot formation inside the new stent (stent thrombosis), which requires you to take prescribed blood-thinning medications exactly as directed
- Allergic reaction to the X-ray contrast dye
- Rare instances of stent fracture, particularly if placed in areas of the leg that bend frequently (like behind the knee)
- Re-narrowing of the stented artery over time (restenosis)