Transient Ischemic Attacks (TIA)

Strokes are the 5th leading cause of death in the US, with one person dying every 4 minutes as a result. For African Americans, stoke is the 3rd leading cause of death.(http://www.cdc.gov/stroke/facts.htm) It is estimated that About 795,000 people have a stroke each year; about one every 40 seconds - there are many medical conditions that can cause a stroke and it is estimated that 8 out of 10 strokes can be prevented. However, there are some things that cannot be controlled when you are predisposed to

Transient Ischemic Attacks occur in the same way as an ischemic stroke. Both occur when the blood supply to part of the brain is blocked, which is why a stroke is known as a cerebrovascular accident.

Episode of cerebrovascular insufficiency with temporary episodes of neurologic dysfunction lasting less than 24 hours and often less than 15 minutes. Most TIA symptoms resolve within 3 hours. Symptoms lasting longer than 24 hours are classified as a stroke. TIAs are thought to be caused by microemboli that temporarily occlude blood flow resulting in ischemia of brain tissue. Often occurs in patients with carotid artery stenosis.

The cause of a stroke could be an artery that is blocked. It is also referred to as an ischemic stroke. A stroke could also be caused by a blood vessel that has burst or is leaking, which is known as a hemorrhagic stroke. Some can experience an interruption in blood flow through their brain, which is known as transient ischemic attack (TIA). Ischemic strokes are the most common. When an ischemic stroke happens, arteries to the brain get narrowed or blocked, which causes a dramatic reduction of blood flow. There are two types of ischemic strokes. One of them is called a thrombotic stroke. A stroke that is thrombotic takes place when a blood clot forms in an artery

Transient ischemic attack (TIA) is a stroke and is caused by obstruction of an artery. During this attack not get blood to irrigate the portion which is stopped and no longer works. It's a disease but only as shown the name is just temporary. The patient often recovers after 15-30 minutes and very rarely happens to recover only after 24 hours. Most times they are less important and have no neurological consequences.

If an artery within the brain or one that goes to the brain is blocked for a short time, the blood flow to that area of the brain slows down or stops. (It basically is ischemic stroke but reversible i.e. a self resolving ischemic stroke, due to the clot busting properties of the body) This can cause a transient ischemic attack (TIA), sometimes called a mini-stroke.

Transient ischemic attack (TIA) is a transient cerebral blood flow disruption, which affects a focal portion of the brain. TIA’s are brief temporary episodes of neurologic loss of vision, motor, and or sensory function that can last from a few minutes up to 24 hours. It cause by temporary obstructions of blood flow to the brain, and can be a warning sign of an impending cerebrovascular accident (CVA). Patients who experience a TIA will go on to have a completed stroke but having TIA increases the risk of stroke. Symptoms of TIA’s mirror those of a stroke but are temporary in nature and do not cause any irreversible damage. Signs and symptoms include a sudden weakness or parethesia on one side of the body, abrupt dimness or loss of vision especially

A transient ischemic attack (TIA) is like a stroke, producing similar symptoms, but usually lasting only a few minutes and causing no permanent damage. Often called a ministroke, a transient ischemic attack may be a warning. About 1 in 3 people who have a transient ischemic attack will eventually have a stroke, with about half occurring within a year after the transient ischemic attack.

The second type of embolism, a Brain embolism, occurs when the blood clot becomes lodged in a blood vessel in the brain. The lodged clot can result in an ischemic stroke or a Transient Ischemic Attack (TIA). An Ischemic stroke (which makes up for 85% of all strokes) is caused when the blood supply to the brain is interrupted by a clot, causing cells of the brain to be deprived of oxygen and nutrients ultimately leading to cell death. Typical symptoms involving a stroke are trouble speaking and difficulty understanding speech, paralysis or numbness of the face, leg, and arm on one side of the body, trouble with vision in one or both eyes, an abrupt, severe headache that is accompanied by vomiting and dizziness, and trouble with walking and coordination.

Hemorrhagic strokes can be further classified into intracerebral hemorrhage and subarachnoid hemorrhage. Ischemic strokes are caused by interruptions or blockages, of the blood supply to the brain, leading to dysfunction of the impacted area. There are three mechanisms why this may occur: thrombosis, lacunar, and embolism. A thrombotic stroke is caused by a rupture of an atherosclerotic plaque. Atherosclerosis usually develops at branch points, for example, bifurcation of the internal carotid and middle cerebral arteries in the circle of Willis. When the blood vessel is injured, platelets and fibrin are produced by the body to form a blood clot in order to prevent blood loss. In thrombosis, the onset of symptoms is much slower, because the blockage of the artery is gradual. Thrombotic strokes can further be divided into two subdivisions: large vessel disease and small vessel disease. Large vessel disease affects arteries such as the internal carotids, the circle of Willis, and vertebral, while small vessel disease affects smaller vessels such as the branches of the circle of Willis. Pathologically, thrombotic strokes result in a pale infarct at the periphery of the cortex. A thrombus that breaks free from the vessel is called an

TIA stands for transient ischemic attack and can be classified as a “mini stroke”. TIA is similar to a stroke in that it causes the same symptoms but it does not damage the brain. TIAs happen when an artery in the brain gets clogged or closes off, and then reopens on its own (Transient Ischemic Attack). This can typically happen if a blood clot blocks the flow of blood through an artery in the brain and then dissolves or moves away. It can also happen if one of the small arteries in the brain begins to close off from the effects of high blood pressure. Whereas a cerebral infarct is brain necrosis due to complete and prolonged ischemia that affects all tissue elements, this is what is known as a full blown stroke (Transient Ischemic Attack).

In contrast, hemorrhagic strokes (13% of all strokes) are intracerebral or subarachnoid in nature, and occur due to ruptured vessels.4 Although hemorrhagic strokes are less common, they are more deadly to patients due to potential hydrocephalus, increased intracranial pressure, and blood vessel spasms.8,9 With regards to incidence, men are more likely to have ischemic strokes10, while women are at greater risk for subarachnoid hemorrhages.11 These strokes are typically preceded by chronic hypertension and vascular malformations, which eventually results in a ruptured aneurysm. In turn, blood accumulation

Strokes are severe health events that are defined as a formation of a blood clot in the brain that starves a section of the brain. (National Stroke Association, 2016) When this occurs, it causes the tissue downstream of the blood vessel to die. The way these clots form by way of atherosclerosis. In short, it is the build-up of plaque and cholesterol in the blood vessels. This plaque then ruptures and causes a blood clot to form. In many cases the clot forms in another region of the body and travels to the smaller blood vessels in the brain and becomes lodged. (NSA, 2016) There are two main types of strokes that can occur. The first is known as an ischemic stroke. It occurs when a blockage occurs in a blood vessel that is carrying oxygenated

TIA or transient ischemic attack is the result of a temporary interruption of blood flow to part of the brain, spinal cord or retina. This is can cause stroke like symptoms, but does not damage to the brain cells or cause the person permanent damage. Although, the symptoms of a TIA are similar to that of a stroke such as numbness one side of the body or muscle weakness, difficulty speaking or understanding speech, loss of balance or dizziness and double visions or difficulty seeing out of one or both eyes. These symptoms can very depend on were the interruption of blood flow the brain is. These symptoms will generally dissipate after a few min but can last up to 24 hours. The causes of a TIA can be a small floating blood clot that temporarily blocks an artery, or narrowing of the arteries that supply blood to the by atherosclerosis or plaque buildup. There are other conditions that can cause TIA but regardless of the causes this can lead to a higher chance of A CVA and is considered a warning sign to a stroke, or cerebrovascular accident this also referred to as a stroke. Although, the symptoms are similar to a TIA with a stroke the affects can be cause permanent damage to brain cells, leaving the person with a permeant disability. Like a TIA strokes symptoms depend on the area of the brain affected. However there are two types of strokes Ischemic and hemorrhagic. Ischemic stroke happens when the arteries that supply blood to the brain becomes blocked. This type of stroke is

“According to the CDC, 113,100 people died in 2014 from stroke, making it the fifth-leading cause of death in the U.S.” Stroke is a sudden disabling attack or loss of consciousness caused by an interruption in the flow of the brain. Without immediately being recognized a stroke can cause a host of problems such as altered speech and communication skills, loss of balance, memory loss, and overall alterations to your brain. Despite stroke’s deadly and life altering effects people have a hard time diagnosing the symptoms immediately and often times associate it with another major condition such as intoxication. The most common things we associate with stroke are weakness in one side of the body, deformity in the mouth, and foaming. Which sadly these symptoms are also indicator that the stroke has been developing for quite a while. People often hear about other major diseases such as heart attacks, diabetes and other illnesses that effects can be viewed immediately within the population. Stroke is what is called a silent killer it has damaging effects just as those more prevalent diseases but it is not as spoken upon.