A TIA is short form for transient ischemic attack, also called a "mini stroke." Unlike a full stroke, TIA's usually do not cause permanent damage. However, they are warning sign that you are at risk for a stroke and need to seek treatment. Heart disease is considered a silent killer because it can exist with no signs or symptoms. For this reason it is important to know the common causes of TIA's and take steps to minimize your risk.
Atherosclerosis
Atherosclerosis is the name for a condition wherein your arteries narrow. When there is too much cholesterol in your bloodstream it can deposit along the walls of your arteries. This buildup is called plaque. As it accumulates in the vessels that supply the brain, less blood and oxygen gets to your brain. When the brain is deprived of blood and oxygen, your body may react by causing the symptoms of a TIA. Being overweight, eating too much fat and cholesterol, lack of exercise, being diabetic and smoking can all contribute to the development of atherosclerosis.
Injuries to Blood Vessels
The Texas Heart Institute states that while less common, injuries to your blood vessels can also cause a TIA. If a blood vessel that supplies the brain ruptures or develops a leak, your brain will not get the blood and oxygen it needs. Blood vessels can become damaged due to trauma, aneurysms, diabetes and high blood pressure. Treating such underlying conditions will be essential in preventing a stroke and other complications.
Blood Clots
According to the National Stroke Association, a TIA can be caused by a blood clot that lodges in your arteries and temporarily restricts blood flow to your brain. This can occur when a blood clot in the legs (peripheral artery disease), heart or other area of the body becomes loose and then lodges in a blood vessel that supplies the brain. If you have plaque buildup, pieces of plaque can break off and block the blood vessels as well. To help prevent a TIA or stroke, make sure you get regular checkups. Your doctor can test your blood pressure, cholesterol levels, listen to your heart and use scans to see how well your blood is moving thorough your body. Doing so may possibly catch a blood clot before it is able to do damage or cause symptoms.
