Carotid disorders occur when the carotid arteries—located on each side of the neck—become narrowed or blocked, reducing blood flow to the brain and increasing the risk of transient ischemic attack (TIA) or stroke. Early diagnosis and appropriate treatment play a critical role in preventing permanent neurological injury. These conditions are part of the spectrum of vascular and neurological disorders treated at Midwest Spine & Brain Institute, serving patients across Minnesota (MN) and Wisconsin (WI).
What Are Carotid Disorders?
Carotid disorders most commonly involve carotid artery stenosis, a condition in which plaque buildup narrows the artery and limits blood flow to the brain. The carotid arteries are responsible for delivering oxygen-rich blood from the heart to the brain. When blood flow is reduced, brain tissue becomes vulnerable to ischemia, increasing stroke risk.
Many patients remain asymptomatic until narrowing becomes severe. When symptoms occur, they often resemble those of a TIA or ischemic stroke and require urgent evaluation.
Common Symptoms Include:
- Sudden weakness or numbness (often on one side of the body)
- Facial drooping
- Difficulty speaking or understanding speech
- Vision loss or double vision
- Loss of balance or coordination
Prompt evaluation is essential, as early treatment significantly lowers the risk of stroke.
What Causes Carotid Disorders?
Carotid artery narrowing and blockage most often result from atherosclerosis, a process in which cholesterol and fatty deposits accumulate inside the artery wall. Contributing risk factors include:
- High cholesterol
- High blood pressure
- Smoking
- Diabetes
- Obesity
- Family history of vascular disease
- Advanced age
These factors damage the artery lining over time, increasing the likelihood of plaque formation and blood clot development.
How Carotid Disorders Are Diagnosed
Diagnosis involves a combination of clinical evaluation and advanced vascular imaging. Specialists use imaging studies to assess the severity, location, and characteristics of arterial narrowing, including:
- CTA (CT Angiography): Rapid imaging to identify stenosis or blockage
- MRA (MR Angiography): MRI-based evaluation of blood vessels
- Cerebral Angiography: High-resolution imaging to guide procedural planning
These tests help determine stroke risk and guide the safest treatment approach.
How Are Carotid Disorders Treated?
Treatment is based on the degree of artery narrowing, symptom history, and overall stroke risk. Care plans are directed by experienced cerebrovascular specialists, including Dr. Eric S. Nussbaum and Dr. Meysam Kebriaei.
1. Medication Management
For mild to moderate stenosis, medical therapy may include:
- Statins to reduce cholesterol and slow plaque progression
- Antiplatelet or anticoagulant medications to reduce clot risk
- Blood pressure and diabetes management
- Lifestyle modification and smoking cessation
2. Minimally Invasive Endovascular Procedures
When narrowing becomes severe or symptoms develop, minimally invasive procedures may be recommended:
- Carotid artery angioplasty and stenting to widen the artery and restore blood flow
- Balloon angioplasty with or without stent placement, depending on anatomy and risk factors
3. Carotid Endarterectomy (CEA)
Carotid endarterectomy is a surgical procedure that removes plaque directly from the artery wall. It is often recommended for patients with significant stenosis and has proven long-term effectiveness when performed by experienced cerebrovascular surgeons such as Dr. Eric S. Nussbaum.
Outcomes & Follow-Up
With early detection and appropriate treatment, many patients successfully reduce their risk of stroke and maintain healthy cerebral blood flow. Ongoing follow-up imaging and monitoring are important to ensure long-term stability. Patients can receive continued care at Midwest Spine & Brain Institute locations, including Apple Valley and Blaine.
Related Vascular Conditions
Patients with carotid disorders may also be evaluated for related cerebrovascular conditions, including:
- Ischemic stroke
- Transient ischemic attack (TIA)
- Vertebral artery disease
- Peripheral vascular disease
Frequently Asked Questions About Carotid Disorders
What is the most common cause of carotid artery narrowing?
Atherosclerosis, caused by cholesterol plaque buildup inside the artery, is the most common cause.
What symptoms require urgent medical attention?
Sudden weakness, speech difficulty, facial drooping, vision loss, or balance problems should be evaluated immediately.
How serious is a 70% carotid blockage?
Severe narrowing significantly increases stroke risk and may require stenting or carotid endarterectomy, depending on symptoms and overall health.
Can carotid disease be treated without surgery?
Yes. Mild stenosis is often managed with medication, risk-factor control, and routine monitoring.
Where can I receive carotid disorder care in MN or WI?
Midwest Spine & Brain Institute provides evaluation and treatment at locations such as Apple Valley and Blaine.