Stroke- where arteries that connect to the brain become blocked resulting in reduced blood flow, these blockages are usually caused by blood clots.…
Aneurysm- caused by an occlusion, rupture or hemorrhage (Due to a buildup of pressure) in the aorta…
← Hemorrhage into the brain tissue damages the neurons, causing a sudden loss of consciousness.…
blood clots which lead to stroke and brain damage. The final stage occurs when the victim has…
An acute subdural hematoma is usually caused by a head injury, such as from a fall, motor vehicle collision, or an assault. The sudden blow to the head tears blood vessels that run along the surface of the brain. The blood collects between the protective layers of tissue that surround the brain. Those layers include the dura, which is the outermost and strongest layer, the arachnoid, the delicate middle layer and the pia, which is the innermost layer that contours the brain. In a subdural hematoma, bleeding occurs between the dura and the arachnoid. The bleeding is located under the skull but outside of the brain, not in the brain itself. As blood accumulates pressure on the brain increases. The pressure on the brain is what causes symptoms. If pressure inside the skull rises to very high level it can lead to loss of consciousness, or even death.…
Cerebrovascular accident is well known as a stroke and affects around 800,000 people every year (Mclntosh, 2016). There are three types of strokes: ischemic, hemorrhagic and transient ischemic attacks (TIAs) (Mclntosh, 2016). Ischemic stroke is the most prevailing type of strokes with an 85 percent average rate (Mclntosh, 2016). It is cause by the reduction of blood flow, because of a narrowed or blocked artery in the brain (Mclntosh, 2016). Also, it is a rapid loss of blood supply which kill the cells of the brain and limits oxygen to go to that side of the brain (Mclntosh, 2016). For example, in the arteries that travels gets blocked because of a blood clots called thrombus (Mclntosh, 2016). Hemorrhagic stroke is the…
Mr. K. was diagnosed as having an acute cerebral vascular accident. This disorder can also be described as a “stroke”. It occurs when there is an interruption of normal blood flow in one or more of the blood vessels that supply the brain. Thrombosis, embolism, and hemorrhage are the primary causes of a CVA. (Sommers and Johnson 2002) The tissues of the brain become ischemic, leading to hypoxia or anoxia with destruction or necrosis of the neurons, glia, and vasculature. Complications of CVA include unstable blood pressure, sensory and motor impairment, infection, pneumonia, contractures, and pulmonary emboli. CVA is the third leading cause of death in the United States and affects more than 500,000 Americans annually. (Sommers and Johnson 2002)…
Children born with a small cranium and jaw, a thin upper lip, and palpebral abnormalities, and have a lower than normal IQ demonstrate classic signs of:…
The leakage is from small intracerebral arteries damaged by hypertension (Hemorrhagic Stroke). The blood then accumulates and compresses the surrounding tissue putting pressure on the brain and causes a loss of blood to the surrounding areas. It can be caused by two types of weakened blood vessels, most commonly an aneurysm (Ellen, M). An aneurysm occurs when a section of a blood vessel becomes enlarged (ballooning) from dangerously increased blood pressure or when a blood vessel is weak, which is most commonly congenital (Hemorrhagic Strokes). The ballooning leads to a weakened region of the blood vessel that ultimately ruptures. It can also be caused by arteriovenous malformation also known as AVM, which is a cluster of abnormally formed blood vessels (Hemorrhagic Strokes). This occurs when arteries and veins are connected abnormally without capillaries between them. Arteriovenous malformations are congenital (they present at birth but are not always hereditary) (Ellen, Mary). The neural tissue in the brain is irritated from the hemorrhage. The blood fills into the nerve roots and the arachnoid granulations which impairs CSF reabsorption and circulation (Hemorrhagic…
the vasculature) that can cause organ damage, ischemia or necrosis — which are often very…
A brain hemorrhage occurs when a blood vessel in the brain bursts, causing bleeding into surrounding tissue, swelling and increased intracranial pressure. Blood may also collect and form a clot, called a hematoma. In an epidural hematoma, the clotting occurs between the inside of the skull and the outer, strong membranous covering of the brain (called the dura mater). Blood that collects beneath the dura mater is called a subdural hematoma. Symptoms of bleeding in the brain, which may gradually worsen or suddenly appear,…
Vascular disease affects the brain also as a result of a stroke, which caused a cut off of oxygen that as starved the brain. This disease is also caused when blood vessels become diseased leading to a condition called sub-cortical dementia that affects memory and understanding.…
An aortic dissection is a tear in your aorta. The aorta is the main blood vessel that carries blood out of your heart to supply the rest of your body. It comes out of your heart and curves around, then goes down through your chest (thoracic aorta) and into your belly (abdominal aorta). The wall of the aorta has inner and outer layers.…
Which occurs when a blood vessel in your brain leaks or ruptures. Brain hemorrhages can result from many conditions that affect your blood vessels. For example is having a hypertension. There are two types of hemorrhagic stroke. Intracerebral hemorrhage is a blood vessel in the brain bursts which damages brain cells. Other conditions such as high blood pressure and trauma may also cause an intracerebral hemorrhage. On the other side, subarachnoid hemorrhage is an artery on or near the surface of your brain bursts that spills into the space between the surface of your brain and your skull. This bleeding is often signaled by a severe…
The first breath is the most difficult, causing a small bulge to appear in the balloon wall. Each successive breath comes easier; the balloon expands, filling bystanders with wonder. Unbeknownst to those observing, each breath moves the balloon closer to the point of rupture. A small tear occurs. Boom! The balloon disintegrates. An aneurysm goes through a similar series of events, but with a more tramatic effect. Unfortunately, the cause of an aneurysm is not as simple as a single breath, but so complex that the root cause is to this point still hidden. Most of the information relating to aneurysms and their causes is focused on how pre-existing medical conditions and lifestyle choices exacerbate an aneurysm. In my eyes, aneurysms are an ever…