Iskeemia

Ischemia refers to a condition where an organ or body part is deprived of adequate blood supply. This reduced blood flow, also known as hypoperfusion, can lead to a lack of oxygen and nutrients necessary for the affected tissue to function and survive. Ischemia can be caused by a variety of factors, including blockages in blood vessels due to atherosclerosis (plaque buildup), blood clots, or external compression.

The severity and duration of the ischemia determine the extent of tissue damage. If blood flow is restored quickly, the effects may be temporary. However, prolonged ischemia can result in cell death, a process called infarction, leading to permanent organ damage. Common examples of conditions resulting from ischemia include heart attacks (myocardial infarction) affecting the heart muscle, and strokes (cerebrovascular accident) affecting the brain. Ischemia can also affect limbs, leading to peripheral artery disease and potentially gangrene.

Symptoms of ischemia vary depending on the affected body part. They can include pain, numbness, weakness, coldness, and changes in skin color. Diagnosis typically involves medical history, physical examination, and imaging tests such as angiography or ultrasound to visualize blood flow. Treatment focuses on restoring adequate blood supply and addressing the underlying cause, which may involve medications, surgical procedures like angioplasty or bypass surgery, or lifestyle modifications.