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An infarct is an area of dead or dying tissue in the body that results from a sudden loss of blood supply, usually due to a blockage in the arteries. This blockage prevents oxygen and nutrients from reaching the tissue, causing it to die.
The process of tissue death due to lack of blood is called ischemic necrosis. |
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| Common Types of Infarcts and Affected Organs |
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| 1. Cerebral Infarct (Brain Stroke) |
Infarct - Occurs when a blood clot blocks a vessel in the brain
and leads to stroke symptoms: paralysis, slurred speech, loss of memory or coordination |
| Types: |
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- Ischemic Stroke: caused by a blockage (most common)
- Hemorrhagic Stroke: bleeding in the brain
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| 2. Myocardial Infarct (Heart Attack) |
- Caused by blockage in coronary arteries
- Leads to damage or death of heart muscle
- Symptoms: chest pain, shortness of breath, fatigue
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| 3. Pulmonary Infarct |
- Due to blocked blood flow in lungs, often from a pulmonary embolism
- Symptoms: sharp chest pain, difficulty breathing, coughing blood
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| 4. Splenic, Renal, or Intestinal Infarcts |
- Rare but can happen in organs like spleen, kidney, or intestines
- Causes include clots, embolism, or artery disease
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| Causes of Infarcts |
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- Atherosclerosis (plaque buildup in arteries)
- Thrombosis (blood clot formation)
- Embolism (clot traveling from another area)
- Vasospasm (sudden narrowing of a blood vessel)
- Trauma or external compression of arteries
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| ?? Risk Factors |
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- High blood pressure
- High cholesterol
- Diabetes
- Smoking
- Obesity
- Sedentary lifestyle
- Atrial fibrillation or other heart conditions
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