What are ischemic arteries?
there really isn't any such thing as an ischaemic artery (it can happen, but I've never heard of it!). Rather ischemia (or ischaemia for our English and Australian friends) is a lack of sufficient oxygen delivery to a tissue. Oxygen is carried by HEMoglobin in the blood hence the iscHEMia. Ischemia is usually caused by an interruption to the blood flow to a particular area. One way to interrupt blood flow is to block an artery. (which usually deliver oxygenated blood to tissues) A blockage may be the result of a plaque (a fatty aggregation on the inside walls of an artery), or a thombus (clot), or an embolus of some sort. People often hear that they may have ischemic heart disease. This is a condition of severely narrowed arteries (often greater than 70% of their cross sectional area may be blocked) which leads to decreased blood (and hence oxygen) supply to the muscle of the heart. This can cause Angina. If the coronary arteries completely block off, then a heart attack will ensue, where cardiac muscle dies because of lack of oxygen. Treatment ranges from medications to: lower cholesterol, decrease oxygen consumption of the heart, vasodilators to increase delivery of blood through that artery; to surgery to operate and either re-open the blocked vessel (balloon angioplasty and stenting ) or procedures to essentially replace the diseased vessels in By-pass surgery (CABG- coronary artery bypass grafting). Hopefully that helps!! Aj :)
As the name suggest, ischemic heart disease is a disease of the heart. However you need to understand that the term 'ischemic' means that lack of blood supply. This then suggest that the actual problem is the lack of blood supply to the heart muscle (myocytes). Ischemic heart disease can predispose to many other cardiovascular condition such as angina, myocardial infaction and arrythmia.
No. A transient ischemic attack, also known as a "mini-stroke", is when a person has stroke like symptoms that resolve within 24 hours. I it due to a lack of blood flow to some part of the brain. Ischemic heart disease is when there are blood flow problems to the heart. It usually manifests as chest tightness or pain and shortness of breath is exertion but the symptoms can vary widely.
Yes, it induces a heart attack, that's why doctors, nurses and such, flick the needle to remove the air bubble. ----------- Answer ----------- Putting air in your vein will form bubbles like putting air in water. However, bubbles in your vein have no where to go but toward your heart/lungs. There, they will circulate to other organs via the arteries. This condition is called air embolism. These bubbles can cause obstructions at some of the…
What is the medical term meaning Ischemic condition has developed a secondary pus-producing infection?
A Transient ischemic attack (TIA) is now defined as a transient episode of neurologic dysfunction caused by focal brain, spinal cord, or retinal ischemia, without acute infarction. The end point is biologic (tissue injury) rather than arbitrary (24 hours). In keeping with this definition of TIA, ischemic stroke is defined as an infarction of central nervous system tissue.