Atherectomy treatment physically removes arterial plaque rather than compressing it, making it particularly valuable for calcified or complex blockages where balloon angioplasty alone falls short. Four distinct techniques exist, including directional, rotational, laser, and orbital, each suited to different plaque types and locations. The procedure is performed under local anesthesia on an outpatient basis, with patients typically returning to daily activities within a few days. In advanced peripheral artery disease, atherectomy also helps preserve limbs by restoring circulation before tissue damage becomes irreversible.
Peripheral artery disease is one of those conditions that tends to announce itself gradually. Leg pain during a walk, numbness in the feet, and wounds on the ankles that take far too long to heal. Over time, these symptoms point to a deeper problem: plaque narrowing the arteries and limiting the blood flow that the legs and feet depend on.
At NG Vascular & Vein Center, one of the procedures we use to address this directly is atherectomy treatment, a minimally invasive approach that physically removes plaque from inside the artery rather than simply pushing it aside. This blog covers what atherectomy involves, how it works, and who tends to benefit from it.
What Atherectomy Treatment Involves
Plaque builds up inside arterial walls over time. As it accumulates, the artery narrows, and blood flow through that vessel becomes increasingly restricted. Other procedures, like balloon angioplasty, work by compressing plaque against the artery wall to create more space. Atherectomy takes a different approach entirely: it removes the plaque from the artery.
A small catheter is inserted through a tiny incision in the skin, typically near the groin or wrist. It is guided through the arterial system using imaging to the exact site of the blockage. At that point, a specialized tip, which may be a blade, a rotating burr, or a laser, is used to cut, grind, or vaporize the hardened plaque and clear the vessel. The result is a restored channel for blood to flow through, rather than a compressed one.
This distinction matters in cases where plaque is heavily calcified or located in a position where angioplasty alone may not be effective. Our team treats a range of vascular conditions related to arterial disease. Atherectomy plays a meaningful role in addressing more complex blockages that require direct plaque removal.
The Four Types of Atherectomy Procedure
Atherectomy is not a one-size-fits-all procedure. There are four main approaches, and the type used depends on the nature of the plaque, its location in the arterial system, and the physician’s assessment of what will be most effective for the patient.
Directional Atherectomy
A small rotating blade shaves plaque from the artery walls in a targeted direction. This approach works particularly well for removing larger plaque deposits in arteries with significant blockages. The directional element allows the physician to focus on eccentric or asymmetric plaque that may be concentrated on one side of the vessel wall.
Rotational Atherectomy
A burr with tiny blades rotates at high speed, cutting plaque in a circular motion. This technique tends to be well-suited for hard, heavily calcified plaque in smaller vessels. The rotating action breaks down plaque while allowing debris to pass safely through the bloodstream.
Laser Atherectomy
A thin catheter emits a high-energy light beam that vaporizes plaque on contact. Laser atherectomy works well for challenging plaque locations, including cases involving in-stent restenosis where plaque has formed inside a previously placed stent. The laser converts the plaque into microscopic particles that disperse safely.
Orbital Atherectomy
A diamond-coated crown rotates eccentrically, working similarly to sandpaper across the plaque surface. This technique is effective for heavily calcified plaque and can address a wider area of the vessel with each pass. Orbital motion allows the physician to modify the treatment area by adjusting the rotational speed.
The choice between these approaches involves a careful clinical assessment. No single type is universally preferred; the decision comes down to the specific characteristics of each patient’s blockage.
How the Procedure Is Performed
Atherectomy is performed under local anesthesia with mild sedation. Patients do not require general anesthesia, which reduces the risks associated with the procedure and shortens recovery time.
Here is a general picture of what the procedure involves:
- Preparation: the patient changes into a hospital gown, and a catheter is placed to deliver local anesthesia to the treatment area
- Access: a small incision is made in the skin, usually at the groin or wrist, and the catheter is inserted into the artery
- Navigation: using live imaging, the catheter is guided through the arterial system to the site of the blockage
- Plaque removal: the specialized tip of the catheter, whether a blade, burr, or laser, is used to remove or vaporize the plaque within the vessel
- Restoration: once the blockage is cleared, blood flow through the artery improves. A stent may be placed at this point to help keep the artery open if the physician determines it is necessary
- Recovery: the procedure is performed on an outpatient basis, meaning patients return home the same day
At NG Vascular & Vein Center, our atherectomy treatment is performed as an outpatient procedure. Patients can generally resume normal daily activities within a few days after treatment.
When Atherectomy Is Used Alongside Other Treatments
Atherectomy is sometimes performed as a standalone procedure and sometimes used in combination with angioplasty and stenting. In cases where plaque is heavily calcified or the artery is particularly resistant to balloon expansion, atherectomy is performed first to debulk the vessel. This makes the artery more receptive to subsequent treatment.
After atherectomy, a stent, which is a small metal mesh tube, may be placed to hold the artery open and reduce the risk of it narrowing again over time. These procedures can often be performed in a single session, thereby limiting overall recovery time and reducing the likelihood of additional interventions.
Who Tends to Benefit from Atherectomy
Atherectomy is primarily used to treat peripheral artery disease affecting the legs and feet, though it also has applications in treating coronary artery blockages. The procedure tends to be considered when:
- Plaque buildup is severe enough to meaningfully restrict blood flow through a vessel
- Calcification makes the blockage too rigid for balloon angioplasty alone to address effectively
- In-stent restenosis has occurred, meaning plaque has developed inside a previously placed stent
- Other, less invasive approaches have not produced adequate results
- The artery is at risk of dissection or perforation if treated with a balloon alone
Patients who may be candidates often present with symptoms that have progressively worsened over time. Common signs that may warrant evaluation include leg cramping or pain during walking, coldness in one foot compared to the other, and numbness or tingling in the lower legs or feet. Skin discoloration or wounds on the ankles or feet that are not healing as expected can also be important warning signs.
Atherectomy and Limb Preservation
In more advanced cases of peripheral artery disease, restricted circulation can threaten limb viability. Patients who have been told they may need an amputation deserve a full evaluation of all available options before any permanent decision is made.
Atherectomy is part of our Limb Salvage Program at NG Vascular & Vein Center, where the goal is to restore circulation, support wound healing, and prevent limb loss whenever possible. Restoring blood flow through a blocked artery can significantly improve outcomes for patients with critical limb ischemia. Minimally invasive approaches, like atherectomy, allow us to address blockages without the recovery demands of open surgery.
Ready to Learn More About Your Treatment Options?
Peripheral artery disease is progressive, and symptoms that seem manageable today can become more serious over time. Getting an accurate picture of what is happening in the arteries and understanding the available treatment options is an important step.
Experiencing leg pain, foot numbness, slow-healing wounds, or other signs of poor circulation? Our team at NG Vascular & Vein Center is here to help. Book an appointment at one of our locations across Northwest Indiana and the greater Chicago area to discuss your situation with a specialist.
FAQs
Does atherectomy permanently fix the artery, or can blockages return?
Atherectomy effectively removes existing plaque, but atherosclerosis is an ongoing condition. New plaque can develop over time, particularly if underlying risk factors like high blood pressure, diabetes, or smoking remain unaddressed. Lifestyle management and follow-up care help reduce the likelihood of recurrence.
Can atherectomy and angioplasty be performed in the same session?
Yes. In many cases, atherectomy is performed first to clear and prepare the artery, followed by balloon angioplasty and sometimes stent placement in the same session. Combining these approaches can improve outcomes for complex or heavily calcified blockages.
Is atherectomy painful, and will I be awake during the procedure?
The procedure is performed under local anesthesia with mild sedation. Patients are awake but comfortable and should not feel pain at the treatment site. Some pressure or mild sensation at the catheter insertion point is possible, but discomfort during the procedure is generally minimal.
