Transient Ischemic Attack (TIA)

A stroke is a type of cardiovascular disease that affects the cerebral arteries, those blood vessels that carry blood to the brain. A stroke occurs when one of those blood vessels in the brain is obstructed or ruptures flooding the brain with blood. Depriving blood and oxygen to the brain results in those immediate cells death, causing the brain not to function properly. Once parts of the brain stop functioning, it can directly affect the areas of the body controlled (1).

Ischemic describes an inadequate blood flow. Therefore, TIA is a deprivation of blood to the brain for a short period of time.

All strokes are caused by an obstruction of blood getting to the brain. The ischemic stroke is caused by a blot clot similar to what happens during a heart attack where blood can’t get through because of plaque buildup that blocks the artery. Hemorrhagic stroke are instead of a blockage a blood vessel bursts and can be caused by a head injury that cause a brain bleed. Transient ischemic strokes are “mini” strokes that happen when there is a blockage but the blood flow is restored after short period of

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 second major type of stroke is labeled as a hemorrhagic stroke. Hemorrhagic strokes are caused by arteries in the brain rupturing open or slowly leaking into the cranium. The rupture or leakage of blood then puts pressure on the surrounding brain cells. There are two types of hemorrhagic strokes; intracerebral-which occurs when a blood vessel in the “brain bursts and spills into surrounding brain tissue damaging brain cells. Brain cells beyond the leak are deprived of blood are also damaged.”2 The second type of hemorrhagic stroke is called a subarachnoid hemorrhage. With a subarachnoid hemorrhage “an artery on the surface of the brain bursts and spills blood between the surface of the brain and the skull. This bleeding is often signaled by a sudden, severe headache.”2 This type of stroke is usually caused by an aneurysm.

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.

According to the New York Times, “Ischemic stroke accounts for about 75% of all strokes and occurs when a blood clot, or thrombus, forms that blocks blood flow to part of the brain” (The New York Times, 2015). If a blood clot forms somewhere in the body and breaks off to become free-floating, it is called an embolus (The New York Times, 2015). This wandering clot may be carried through the bloodstream to the brain where it can cause ischemic stroke. According to Community Connect to Research, a hemorrhagic stroke occurs when a blood vessel on the brain's surface ruptures and fills the space between the brain and skull with blood or when a defective artery in the brain bursts and fills the surrounding tissue with blood. Both result in a lack of blood flow to the brain and a buildup of blood that puts too much pressure on the brain (Community Connect to Research,

A stroke (cerebrovascular accident) occurs if the supply of oxygenated blood to the brain is reduced or blocked. Brain cells require a constant flow of oxygen rich blood and if it is restrained, brain cells begin to die within a matter of minutes. If the stroke is severe, it will lead to long term damage in the brain and the muscles which are controlled by the portion of the brain affected (Teng,2013). The three main types of strokes are hemorrhagic, ischemic and transient ischemic attacks. Ischemic stroke is the most common and involves a blood clot formation in the cerebral arteries while hemorrhagic occurs do to a brain aneurysm or blood vessel leak. The blood spills into the brain and creates immense

Hemorrhagic stroke occurs when a blood vessels in the brain leaks or ruptures. Bleeding from the ruptured brain artery can either go into the substance of the brain or into the various spaces surrounding the brain. The two types of hemorrhagic stroke are Intracerebral and Subarachnoid hemorrhagic.

A transient ischemic attack or TIA is like a stroke for it produce similar symptoms, but this only last a few hours and don’t cause permanent damage over the patient. This event was often called a mini stroke, and transient ischemic attack could be a warning to all of us. According to a study of statistic, in every 3 people who are experiencing a transient ischemic attack 1 patient would eventually experience a stroke, with about half occurring within a year after the patient had experienced a transient ischemic attack.

Transient Ischemic Attack (TIA)(a ‘mini stroke’, caused by a temporary blood clot) – The result when long, thin arteries penetrate deep into the brain and become blocked by atherosclerosis, causing areas of surrounding tissue to lose their body supply. The tissue may then wither, creating lacunes (small holes). A succession of transient ischemic attacks over the years can affect the brain, causing dementia.

A stroke, according to the National Stroke Association, is a "brain attack" (“What is stroke?”, 2016). This attack happens when blood flow to the brain is interrupted or blocked. When the blood supply to the brain is stopped the cells in the brain begin to lose function and die. The loss of

Stroke can be categorized into ischemic and hemorrhagic subtypes as each has a different mechanism and long term outcome. Ischemic stroke makes up 87% of all strokes and is caused by an occluded cerebral blood vessel causing hypoperfusion to areas upstream of the occlusion that result in tissue damage and dysfunction. Of all

Jahan explains that a stroke occurs when a blood vessel is blocked by a clot or bursts, decreasing or interrupting the blood-supply with the oxygen and nutrients to the brain.

A stroke caused by a blocked artery by a blood clot or bursting of a blood vessel because of uncontrolled high blood pressure. There are main three types of the stroke. An ischemic stroke occurs when a blood clot blocks one of the arteries which supply blood to brain. A clot may be caused by fatty deposits (plaque) that build up in arteries and cause reduced blood flow (atherosclerosis) or other artery conditions. (mayo clinic). About 89%, strokes are ischemic strokes. Ischemic stroke includes thrombotic stroke. A thrombotic stroke occurs when a thrombus stuck in one of the arteries that supply blood to the brain. A clot build-up of fatty deposits in arteries. Another type of stroke is called the hemorrhagic stroke. This stroke occurs when a blood vessel leaks or ruptures in the brain. A bold vessel leaks or ruptures from many conditions like uncontrolled high blood pressure or overtreatment with anticoagulants and the weak spot in blood vessel walls. (mayo). Some people experience a mini-stroke it is known as a transient ischemic attack (TIA). A temporary decrease or clot stuck in a vessel in our brain causes TIA. It happens less than five minutes. This stroke does not have any symptom, because the blockage is