ischemia

Examples of ischemia in the following topics:

• Myocardial Ischemia and Infarction

  • Atherosclerosis reduces blood flow to the heart muscle, causing ischemia.
  • Distinguish between the effects of myocardial ischemia and infarction on the heart

• Coronary Artery Disease

  • A distinction should be made between myocardial ischemia and myocardial infarction.
  • Ischemia means that the amount of blood supplied to the tissue is inadequate to supply the needs of the tissue.
  • If the blood flow to the tissue is improved, myocardial ischemia can be reversed.

• Heart Circulation

  • A myocardial infarction (heart attack) may be caused by prolonged ischemia (oxygen deprivation) in the heart, which occurs due to blockage of any of the coronary arteries.
  • When these vessels become blocked, the myocardium becomes oxygen-deprived, a condition called ischemia.
  • Brief periods of ischemia in the heart are associated with intense chest pain called angina, which may either be transient if the clot breaks up on its own or stable if it does not.
  • As the time period of ischemia increases, the hypoxic conditions cause muscle tissue to die, causing a myocardial infarction (heart attack).

• Localization of Pain

  • Visceral structures are highly sensitive to stretch, ischemia, and inflammation, but relatively insensitive to other stimuli that normally evoke pain in other structures, such as burning and cutting.
  • An example is the case of ischemia brought on by a myocardial infarction (heart attack), where pain is often felt in the neck, shoulders, and back rather than in the chest, the site of the injury.

• Blood Flow in the Brain

  • Too little blood flow (ischemia) results in tissue death.

• Pressure Ulcers

  • Moist skin is more sensitive to tissue ischemia and necrosis, and is also more likely to get infected.

• Medulla Injury

  • Lateral medullary syndrome, also called Wallenberg syndrome and posterior inferior cerebellar artery syndrome, is a disease that presents with a constellation of neurologic symptoms due to injury to the lateral part of the medulla in the brain, resulting in tissue ischemia and necrosis, typically from blood clot (stroke) impeding the vertebral artery and/or the posterior inferior cerebellar artery .

• Spinal Tap

  • Increased levels of lactate can occur the presence of cancer of the central nervous system, multiple sclerosis, low blood pressure, low serum phosphorus, respiratory alkalosis, idiopathic seizures, traumatic brain injury, cerebral ischemia, brain abscess, hydrocephalus, or bacterial meningitis.

• Inguinal Hernia

  • If the blood supply of the portion of the intestine caught in the hernia is compromised, the hernia is deemed "strangulated" and gut ischemia and gangrene can result, with potentially fatal consequences.

• Benefits of Stretching

  • Stretching may also cause ischemia in muscles, which reduces oxygen levels and the ability to remove metabolic waste.