Stroke meaning in medical

Of these, 46,182 were hospitalized for acute MI and 80,466 for ischemic stroke. After they adjusted for demographics, stroke risk factors, and Charlson comorbidities, the researchers found that the risk of ischemic stroke was highest in the first 4 weeks after discharge from the MI hospitalization (HR, 2.7), yet remained elevated during weeks 5-8 (HR, 2.0) and weeks 9-12 (HR, 1.6). Simvastatin is a cholesterol-lowering medication which acts by inhibiting hydroxymethylglutaryl-coenzyme A (HMG-CoA) reductase, hence used for the primary and secondary prevention of ischemic stroke. Simvastatin can inhibit activation of extracellular regulated kinase (ERK) 1/2 and proliferation of rat vascular smooth muscle cells [15], attenuation of inflammation, oxidative stress and plaque stabilization, and plaque thickness in type 2 diabetes patients [16]. • • • • • Copyright © 2003-2023 Disclaimer All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.

A stroke is a medical emergency that happens when the blood flow to your brain is interrupted. Without blood, your brain cells start to die. This can cause serious symptoms, lasting disability, and even death. There’s more than one kind of stroke. Keep reading to learn about the three main types of strokes, their symptoms, and treatments. There are three main types of stroke: transient ischemic attack, ischemic stroke, and hemorrhagic stroke. It’s estimated that Transient ischemic attack Doctors also call a Ischemic stroke An ischemic stroke occurs when a blood clot keeps blood from flowing to your brain. The blood clot is often due to An ischemic stroke can be embolic, meaning the blood clot travels from another part of your body to your brain. An estimated A thrombotic stroke is an ischemic stroke caused by a clot forming in a blood vessel in your brain. Unlike a TIA, the blood clot that causes an ischemic stroke won’t go away without treatment. Hemorrhagic stroke A There are three main types of hemorrhagic strokes: The first is an The different stroke types cause similar symptoms because each affects blood flow in your brain. The only way to determine what type of stroke you may be having is to seek medical attention. A doctor will order imaging tests to view your brain. The • Face: When you smile, does one side of your face droop? • Arms: When you raise both arms, does one arm drift down? • Speech: Is your speech slurred? Are you having trouble talking? • Time: If you ...

Atrial fibrillation In a typical heart, a tiny cluster of cells at the sinus node sends out an electrical signal. The signal then travels through the atria to the atrioventricular (AV) node and passes into the ventricles, causing them to contract and pump out blood. In atrial fibrillation, electrical signals fire from multiple locations in the atria (typically pulmonary veins), causing them to beat chaotically. Since the atrioventricular (AV) node doesn't prevent all of these chaotic signals from entering the ventricles, the heart beats faster and irregularly. Atrial fibrillation (A-fib) is an irregular and often very rapid heart rhythm (arrhythmia) that can lead to blood clots in the heart. A-fib increases the risk of stroke, heart failure and other heart-related complications. During atrial fibrillation, the heart's upper chambers (the atria) beat chaotically and irregularly — out of sync with the lower chambers (the ventricles) of the heart. For many people, A-fib may have no symptoms. However, A-fib may cause a fast, pounding heartbeat (palpitations), shortness of breath or weakness. Episodes of atrial fibrillation may come and go, or they may be persistent. Although A-fib itself usually isn't life-threatening, it's a serious medical condition that requires proper treatment to prevent stroke. Treatment for atrial fibrillation may include medications, therapy to reset the heart rhythm and catheter procedures to block faulty heart signals. A person with atrial fibrillati...

What are the different types of stroke? Strokes can be classified into 2 main categories: • Ischemic strokes. These are strokes caused by blockage of an artery (or, in rare instances, a vein). About 87% of all strokes are ischemic. • Hemorrhagic stroke. These are strokes caused by bleeding. About 13% of all strokes are hemorrhagic. What is an ischemic stroke? An ischemic stroke occurs when a blood vessel that supplies the brain becomes blocked or "clogged" and impairs blood flow to part of the brain. The brain cells and tissues begin to die within minutes from lack of oxygen and nutrients. Ischemic strokes are further divided into 2 groups: • Thrombotic strokes. These are caused by a blood clot that develops in the blood vessels inside the brain. • Embolic strokes. These are caused by a blood clot or plaque debris that develops elsewhere in the body and then travels to one of the blood vessels in the brain through the bloodstream. Thrombotic stroke Thrombotic strokes are strokes caused by a thrombus (blood clot) that develops in the arteries supplying blood to the brain. This type of stroke is usually seen in older persons, especially those with high cholesterol and atherosclerosis (a buildup of fat and lipids inside the walls of blood vessels) or diabetes. Sometimes, symptoms of a thrombotic stroke can occur suddenly and often during sleep or in the early morning. At other times, it may occur gradually over a period of hours or even days. Thrombotic strokes may be precede...

The sooner you respond to and get emergency treatment for a possible stroke, the better your chances for recovery will be. Remember the acronym FAST: • F: Is your face drooping? • A: Can you raise both arms evenly? • S: Are you slurring your words or having trouble speaking? • T: Did you answer yes to any one of these questions? Then it's time to call 911. Treatment of Pons Stroke A stroke is an emergency that needs immediate medical attention. In 2018, the American Heart Association and American Stroke Association issued guidelines for stroke treatment. The guidelines strongly recommend using tPA in patients who are eligible.However, providers need to evaluate each patient carefully before using the drug.Factors that help determine if a patient can get the treatment include: • Age • Blood sugar levels • In some patients, tPA can be used up to 4.5 hours after the onset of stroke symptoms. Recovery Timeline Many patients can make a full recovery from a potion stroke, though others may have permanent problems with motor function. • Eating a nutritious and balanced diet • Losing weight if needed to be at a weight that supports your health • Getting regular exercise • Limiting your intake of alcohol • • Managing chronic health conditions (for example, if you have diabetes, you are two times more likely to have a stroke than people who do not have the condition). This type of stroke is diagnosed with a neurologic examination and imaging tests. Some can be treated with a clot-di...

Lacunar stroke is a type of ischemic stroke that occurs when blood flow to one of the small arteries deep within the brain becomes blocked. A stroke occurs when a blockage interrupts or prevents blood flow to the brain. Strokes that occur due to blockages in blood vessels within the brain are called ischemic strokes. According to the We explain essential information about lacunar strokes, including the symptoms, causes, and treatments, as well as how to reduce your risk. As lacunar infarcts are small, they often do not cause symptoms. Often, they show up on brain scans before people are even aware they’ve happened. When symptomatic, a lacunar stroke usually comes on suddenly and without warning. Symptoms may include: • slurred speech • inability to raise one arm • drooping on one side of the face • • difficulty walking or moving your arms • • • difficulty speaking or understanding spoken language • • loss of consciousness or The death of brain cells can disrupt some of the bodily functions the cells supported. For this reason, symptoms can vary depending on the location of the stroke. A few different groups of people might have a higher risk for lacunar stroke than others. Older adults Your risk of lacunar stroke increases with age. Those at risk include people with chronic People with underlying health conditions Some chronic health problems can cause a lacunar infarct as a complication, including: • chronic • heart disorders • • • • high levels of an amino acid called • ...

Sometimes, even with testing, the underlying cause of a stroke can’t be identified. When this happens, the stroke is classified as a cryptogenic stroke. These strokes make up about 25–40% of ischemic strokes. Nearly Ischemic strokes make up about Hemorrhagic strokes are less common. They occur when a blood vessel ruptures, which can cause bleeding in your brain. A stroke is called “cryptogenic” when the cause can’t be determined. Doctors classify strokes as cryptogenic in the following • they can’t find the cause of the stroke • the stroke has two or more possible causes • the cause of the stroke hasn’t been fully evaluated Read on to learn more about cryptogenic strokes, including how they’re diagnosed and treated. Most strokes are It’s thought that a large proportion of cytogenic strokes are caused by: • Atrial fibrillation (AFib): • Hypercoagulable state: A • Aortic arch atheroma: Aortic arch • Patent foramen ovale: • Other causes: rarer causes of cryptogenic stroke include: • infections such as • a tear in the wall of one of your arteries • cancer Symptoms of a stroke can vary depending on what area of the brain is affected. • severe • • • lack of coordination • vision changes or trouble seeing • sudden • sudden difficulty speaking or understanding speech • sudden paralysis, numbness, or weakness on one side of your body, including the: • face • arms • legs Learn more about It’s critical to seek immediate medical attention, by calling 911 or local emergency services, i...