Carotid Stenosis


Carotid artery disease also known as carotid stenosis occurs when the blood vessels that deliver blood to brain get clogged by the fatty deposits or plaque. The buildup plaque narrows the carotid arteries and reduces the blood flow to the brain. Due to obstructed carotid arteries , brain gets deprive of oxygen and it causes stroke. Carotid artery stenosis develops slowly and can cause temporary shortage of blood flow to your brain. It is one of the major causes of stroke or transient ischemic attack (TIA). Carotid artery disease usually involves lifestyle changes, medication and sometimes carotid artery stenosis surgery.


Usually, there are no visible carotid artery disease symptoms and signs until you have stroke or transient ischemic attack.
Some signs of stroke or TIA include:
  • Blurred vision or trouble seeing in one or both eyes
  • Weakness, tingling, or numbness on face, limbs or body
  • Difficulty in walking
  • Sudden dizziness
  • Trouble in speaking
  • Severe headache
  • Memory issues
  • Difficulty swallowing

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When to see a doctor

Whenever you experience signs and symptoms of stroke or TIA, consult your doctor right away. Your doctor may recommend about the management of risk factors of stroke. It can increase your chances of preventing carotid artery stenosis and can be treated before a disabling stroke occurs.


Carotid artery disease is caused by a buildup of fat deposits in blood vessels that deliver blood to the brain. Carotid arteries which gets clogged with plaque or fat deposits have trouble delivering oxygen and nutrients to brain and may even cause death.

Types of plaques formed in the carotid vessels:

  • type I: haemorrhage, lipid, cholesterol and proteinaceous material
  • type II: fibrous connective tissue with haemorrhage, lipid, cholesterol and proteinaceous material
  • type III: dense fibrous connective tissue with haemorrhage, lipid, cholesterol and proteinaceous material
  • type IV: dense fibrous connective tissue

Risk Factors

Some of the factors that can increase the risk of carotid artery disease are:
  • High blood pressure
  • Tobacco usage
  • Diabetes
  • High blood-fat levels
  • Age
  • Obesity
  • Sleep apnea
  • Lack of exercise


Carotid stenosis can cause stroke that can damage your brain and weaken your muscles.The disease block the blood flow in carotid arteries. As a result, the arteries becomes narrow and blood cannot reach the brain. This causes stroke. Sometimes the piece of fat deposits break and flow in the arteries. It creates a blockage in the blood vessels and stops the blood supply to the brain.


In order to prevent the carotid artery disease, you need to follow the following steps:

  • Quit Smoking
  • Maintain healthy weight
  • Control chronic conditions such as diabetes and hypertension
  • Regular checkups
  • Keep your cholesterol and fat level in check
  • Healthy diet
  • Limit salt
  • Physical Workout


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