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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.
Sickle-cell anemia, which can cause blood cells to clump up and block blood vessels, can also lead to stroke. Stroke is the second leading cause of death in people under 20 with sickle-cell anemia. [53] Air pollution may also increase stroke risk. [54]
Diseases/conditions that cause red blood cells to rupture, such as a reaction to severe infection/sepsis and certain immune disorders.Certain genetic conditions causing the red blood cells to be ...
Stress can also trigger a sickle cell crisis, so relaxation techniques like breathing exercises can help. [90] Pneumococcal infection is a leading cause of death among children with SCD; penicillin is recommended daily during the first 5 years of life in order to minimise the risk of infection. [91] [92]
Stroke is the second leading cause of death around the world, according to the World Health Organization, causing 6.6 million deaths in 2020. That number is expected to hit 9.7 million in 2050 ...
Cerebral infarction – A "stroke", caused by complete oxygen deprivation due to an interference in cerebral blood flow which affects multiple areas of the brain. Cerebral hypoxia can also be classified by the cause of the reduced brain oxygen: [23] Hypoxic hypoxia – Limited oxygen in the environment causes reduced brain function.
Megaloblastic anemia, the most common cause of macrocytic anemia, is due to a deficiency of either vitamin B 12, folic acid, or both. [81] Deficiency in folate or vitamin B 12 can be due either to inadequate intake or insufficient absorption. Folate deficiency normally does not produce neurological symptoms, while B 12 deficiency does.
Ischemia is a vascular disease involving an interruption in the arterial blood supply to a tissue, organ, or extremity that, if untreated, can lead to tissue death. It can be caused by embolism, thrombosis of an atherosclerotic artery, or trauma. Venous problems like venous outflow obstruction and low-flow states can cause acute arterial ischemia.