What is lacunar infarct?

What is lacunar infarct?

Lacunar stroke or lacunar infarct (LACI) is the most common type of ischemic stroke. It results from the occlusion of small penetrating arteries. A stroke occurs when blood flow to the brain is interrupted or blocked. According to the National Institutes of Health (NIH), lacunar strokes represent about one-fifth of all strokes. Any type of stroke is dangerous because brain cells are deprived of oxygen and begin to die within minutes.


Symptoms of stroke usually come on suddenly and without warning. Signs of lacunar stroke can include:

  • slurred speech
  • inability to raise one arm
  • drooping on one side of the face
  • numbness, often on only one side of the body
  • difficulty walking or moving your arms
  • confusion
  • memory problems
  • difficulty speaking or understanding spoken language
  • headache
  • loss of consciousness or coma


  • physical therapy to restore function
  • occupational therapy to improve skills needed for everyday living
  • speech therapy to improve language skills

Keywords: lacunar infarct;block;dangerous

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