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2. Myocardial infarction - Wikipedia

   en.wikipedia.org/wiki/Myocardial_infarction

   The animation shows plaque buildup or a coronary artery spasm can lead to a heart attack and how blocked blood flow in a coronary artery can lead to a heart attack. The most common cause of a myocardial infarction is the rupture of an atherosclerotic plaque on an artery supplying heart muscle.

3. Reflex syncope - Wikipedia

   en.wikipedia.org/wiki/Reflex_syncope

   The underlying mechanism involves the nervous system slowing the heart rate and dilating blood vessels, resulting in low blood pressure and thus not enough blood flow to the brain. [2] Diagnosis is based on the symptoms after ruling out other possible causes. [3] Recovery from a reflex syncope episode happens without specific treatment. [2]

4. Cerebral edema - Wikipedia

   en.wikipedia.org/wiki/Cerebral_edema

   The breakdown of the tight endothelial junctions that make up the blood–brain barrier causes extravasation of fluid, ions, and plasma proteins, such as albumin, into the brain parenchyma. [18] Accumulation of extracellular fluid increases brain volume and then intracranial pressure causing the symptoms of cerebral edema.

5. What Is Heart Disease? Everything You Need to Know - AOL

   www.aol.com/heart-disease-everything-know...

   Swelling of legs, feet, ankles, abdomen, or neck veins ... heart attack symptoms are immediate and intense, and other times they develop gradually. The longer you wait to get treatment for a heart ...

6. High-altitude cerebral edema - Wikipedia

   en.wikipedia.org/wiki/High-altitude_cerebral_edema

   These factors cause the brain to swell with fluid, resulting in severe impairment. [15] If the swelling is untreated, it causes death by brain herniation. [4] The brain swelling is likely a result of vasogenic edema, the penetration of the blood–brain barrier by fluids. [16] This process has been observed in MRI studies.

7. 3 Surprising 'Mini Heart Attack' Symptoms Most People Miss - AOL

   www.aol.com/3-surprising-mini-heart-attack...

   In terms of how a “mini heart attack” is treated, Dr. Mehta says that, typically, a doctor will do an imaging test such as an electrocardiogram or cardiac MRI to confirm that what happened was ...

8. Brain ischemia - Wikipedia

   en.wikipedia.org/wiki/Brain_ischemia

   Brain ischemia has been linked to a variety of diseases or abnormalities. Individuals with sickle cell anemia, compressed blood vessels, ventricular tachycardia, plaque buildup in the arteries, blood clots, extremely low blood pressure as a result of heart attack, and congenital heart defects have a higher predisposition to brain ischemia in comparison to the average population.

9. Heart attacks are at a record high – here are the symptoms ...

   www.aol.com/heart-attacks-record-high-symptoms...

   Hospital cases at new high as health chiefs raise fears that those with symptoms are failing to seek help Heart attacks are at a record high – here are the symptoms you can’t ignore Skip to ...