Atherosclerosis is treated with a combination of lifestyle changes, cholesterol-lowering medications, blood pressure control, blood thinners, and in some cases, procedures to physically open or bypass blocked arteries. The specific mix depends on how advanced the disease is, which arteries are affected, and your overall risk of a heart attack or stroke. For most people, treatment starts with daily habits and medications, not surgery.
Diet and Exercise as First-Line Treatment
Lifestyle changes aren’t just a warm-up before “real” treatment. They form the foundation of every atherosclerosis treatment plan, regardless of severity. The American Heart Association recommends at least 150 minutes per week of moderate to vigorous physical activity. That can be as simple as brisk walking for about 30 minutes on most days. Regular exercise improves blood vessel function, helps control weight, lowers blood pressure, and raises levels of protective HDL cholesterol.
On the dietary side, several eating patterns have strong evidence behind them: the DASH diet (originally designed to lower blood pressure), the Mediterranean diet (rich in olive oil, fish, nuts, and vegetables), and pescetarian or vegetarian approaches. What these patterns share is an emphasis on whole grains, fruits, vegetables, legumes, and healthy fats, while limiting processed foods, added sugars, and excess sodium. Smoking cessation is equally critical. Tobacco smoke damages the inner lining of arteries, accelerating plaque buildup and making existing plaques more likely to rupture.
Statins and Cholesterol-Lowering Drugs
Statins are the cornerstone medication for atherosclerosis. They work by reducing the amount of cholesterol your liver produces, which lowers the level of LDL (“bad”) cholesterol circulating in your blood. But statins do more than just lower a number on a lab report. They actually change the composition of plaques already inside your arteries, making them more stable and less likely to crack open and trigger a blood clot. Specifically, they reduce inflammatory cells within plaques and increase the structural protein collagen, essentially reinforcing the cap that keeps a plaque intact.
High-intensity statin therapy can lower LDL cholesterol significantly, and current guidelines set an aggressive target for people at very high risk: an LDL below 55 mg/dL. “Very high risk” means you’ve had multiple serious cardiovascular events (like a heart attack plus a stroke) or one major event combined with other risk factors such as diabetes, being over 65, or being a current smoker.
When statins alone aren’t enough to reach that target, doctors add other medications. Ezetimibe is typically the first addition. It works differently from statins, blocking cholesterol absorption in the gut, and lowers LDL by roughly 18 to 24 percent on top of what the statin achieves. If LDL is still too high after combining a statin with ezetimibe, a class of injectable drugs called PCSK9 inhibitors can be prescribed. These antibodies help your liver clear more LDL from the bloodstream, reducing levels by 50 to 60 percent. A newer injectable option works by silencing the gene that produces the PCSK9 protein. It’s given just twice a year after an initial loading period and lowers LDL by about 50 percent. The twice-yearly dosing schedule makes it a practical option for people who struggle with daily pills or more frequent injections.
Blood Pressure Control
High blood pressure puts constant mechanical stress on artery walls, which worsens atherosclerosis and makes plaques more vulnerable. For people with coronary artery disease, a blood pressure target below 140/90 mmHg is generally recommended, with a lower target of below 130/80 potentially appropriate for those who’ve already had a heart attack, stroke, or have diabetes. For people over 80, a target below 150/80 is considered reasonable given the risks of lowering pressure too aggressively in that age group.
The choice of blood pressure medication depends on your specific situation. Beta-blockers are preferred for people with chest pain from reduced blood flow, because they slow the heart rate and reduce the heart’s oxygen demand. ACE inhibitors or a related class called ARBs are recommended when there’s been a prior heart attack, reduced heart pumping ability, diabetes, or kidney disease. Many people end up on a combination of these, sometimes with a diuretic added. One important caution: if you have diabetes or are over 60, blood pressure should be lowered gradually, and the lower number (diastolic) generally shouldn’t drop below 60 mmHg, because too-low diastolic pressure can reduce blood flow to the heart muscle itself.
Blood Thinners to Prevent Clots
Atherosclerosis becomes dangerous when a plaque ruptures and a blood clot forms on top of it, suddenly blocking the artery. Antiplatelet medications reduce this risk by making blood cells called platelets less sticky and less likely to clump together at a rupture site.
Aspirin remains a standard part of treatment for anyone who already has atherosclerotic disease. After a heart attack or a stent placement, most people take two antiplatelet drugs simultaneously, a regimen called dual antiplatelet therapy. This typically combines aspirin with a second drug that blocks a specific receptor on platelets. Current guidelines prefer the newer, more potent options over the older drug clopidogrel for most heart attack patients, though clopidogrel remains appropriate for people who can’t tolerate the alternatives, those with high bleeding risk, or older adults. The duration of dual therapy varies, often lasting 6 to 12 months after a heart attack, before stepping back down to a single antiplatelet drug long term.
Angioplasty and Stenting
When lifestyle changes and medications don’t adequately control symptoms like chest pain or shortness of breath, a minimally invasive procedure called angioplasty may be recommended. A thin catheter is threaded through a blood vessel (usually starting at the wrist or groin) up to the blocked artery. A tiny balloon at the catheter’s tip is inflated to compress the plaque against the artery wall, widening the channel. In most cases, a small mesh tube called a stent is left in place to keep the artery open.
Angioplasty is most commonly used when one or two arteries are narrowed and symptoms haven’t responded to medications. The procedure itself typically takes one to two hours, and many people go home the same day or the next morning. Recovery is relatively quick, with most people returning to normal activities within a week, though heavy lifting is usually restricted for a short period.
Bypass Surgery
When blockages are widespread, affecting multiple arteries, or when one of the main arteries supplying a large portion of the heart is severely narrowed, coronary artery bypass surgery is often the better option. A surgeon takes a healthy blood vessel from your chest wall, leg, or arm and grafts it around the blocked section, creating a new route for blood to reach the heart muscle.
The decision between stenting and bypass depends on several factors: the number and location of blockages, how well the heart is pumping overall, and whether you have other conditions like diabetes, valve disease, or kidney disease. Diabetes in particular tends to tip the balance toward bypass surgery, because studies consistently show better long-term outcomes in diabetic patients with multi-vessel disease who get bypass rather than stents. Recovery from bypass is significantly longer than from stenting. Most people spend about a week in the hospital and need 6 to 12 weeks before returning to full activity.
Treating Atherosclerosis in the Neck Arteries
Atherosclerosis doesn’t only affect the heart. The carotid arteries, which run along each side of the neck and supply blood to the brain, are another common site. When these arteries narrow significantly, the risk of stroke increases. For symptomatic patients with severe narrowing (greater than 70 percent blockage), surgical removal of the plaque through a procedure called endarterectomy has a long track record. An alternative is carotid stenting, which uses the same balloon-and-stent concept as coronary angioplasty. The choice between the two depends on anatomy, age, and surgical risk, and is made on a case-by-case basis.
What Long-Term Management Looks Like
Atherosclerosis is a chronic condition. Treatment doesn’t end after a procedure or once cholesterol numbers improve. You’ll have regular blood tests to monitor cholesterol and blood sugar levels, periodic check-ins to assess blood pressure, and ongoing adjustments to medications as needed. The goal shifts over time from stopping disease progression to preventing events: heart attacks, strokes, and the need for repeat procedures.
Most people with atherosclerosis take a combination of a statin, a blood pressure medication, and at least one antiplatelet drug for years, often for life. The daily pill burden can feel like a lot, but each medication targets a different part of the disease process. Statins stabilize plaques. Blood pressure drugs reduce the force battering artery walls. Antiplatelets prevent clots from forming at vulnerable spots. Layered together with consistent exercise and a heart-healthy diet, these treatments substantially reduce the chance of a serious cardiovascular event.