In fact, ischemic strokes unfold over a period of 10 hours. That means that with every second you wait for treatment, the brain damage gets worse. If a stroke is untreated for the full 10 hours, the brain ages up to 36 years! With every minute you wait, the brain loses two million brain cells.
Part of the brain is robbed of the oxygen and blood supply it needs to function, because a blood vessel to part of the brain either has a clot or blockage, or bursts. The longer a stroke goes untreated, the more brain cells die. But there are treatments that can be given if a person reaches the hospital in time.
In reality, there is no set timeframe for strokes — some can last just minutes, while others can linger for hours or even days. The faster your stroke is treated, the better your chances of survival, so it's important to understand the symptoms of different types of strokes.
Early treatment for ischemic stroke (clot)
It must be given as soon as possible, ideally within 4½ hours after stroke symptoms started. A clot-busting drug can reduce the severity of the stroke and reverse some stroke effects.
Despite the likelihood of making a full recovery, life expectancy after stroke incidents can decrease. Unfortunately, researchers have observed a wide range of life expectancy changes in stroke patients, but the average reduction in lifespan is nine and a half years.
The stroke recovery process is long and can come with many challenges, including the feeling that symptoms are getting worse instead of better. However, know that regression after stroke is common and often temporary. This can be impacted by factors such as new medications, schedule changes, or excess fatigue.
The first three days are of utmost importance for the recovery and survival rate of the stroke patient, since they can determine if the patient will have lifelong disabilities or leave the hospital and continue to be a productive part of the community.
The reason the first hour is golden is because stroke patients have a much greater chance of surviving and avoiding long-term brain damage if they arrive at the hospital and receive treatment with a clot-busting drug called TPA within that first hour.
Call 9-1-1 immediately if any of these signs of stroke appear: Numbness or weakness in the face, arm, or leg; Confusion or trouble speaking or understanding speech; Trouble seeing in one or both eyes; Trouble walking, dizziness, or problems with balance; severe headache with no known cause.
Strokes occur when blood flow to a part of the brain is cut off or drastically reduced, causing brain cells to die. If a stroke isn't caught early, it can cause permanent brain damage or death.
An MRI can also detect old strokes for decades after they happen. The fastest type of MRI is diffusion-weighted imaging (DWI). It measures shifts in fluid in the brain and can detect a stroke soon after its onset. An MRI can also detect evidence of past strokes.
Ischemic stroke
If you arrive within four-and-a-half hours of the onset of the stroke, you might receive a medication called IV tPA (intravenous tissue plasminogen activator). This is a protein that your body makes to break up clots.
Few patients recover fully and most are left with some disability, but the majority exhibit some degree of spontaneous recovery. Doctors and scientists don't fully understand how this happens, because the brain does not grow new cells to replace the ones damaged by the stroke.
Ischemic stroke was most frequent in the anterior circulation (87.7%). Within 72 hours after stroke onset 48.0% of the patients had impaired arm and hand function and this was positively associated with higher age (p < 0.004), longer stay in the acute care (p < 0.001) and mortality in acute care (p < 0.001).
Even after surviving a stroke, you're not out of the woods, since having one makes it a lot more likely that you'll have another. In fact, of the 795,000 Americans who will have a first stroke this year, 23 percent will suffer a second stroke.
Strokes can cause weakness or paralysis on one side of the body, and can result in problems with co-ordination and balance. Many people also experience extreme tiredness (fatigue) in the first few weeks after a stroke, and may also have difficulty sleeping, making them even more tired.
Medical experts often use the NIH Stroke Scale to determine the severity of a stroke. Patients that score between 21 and 42 (the highest possible score) are considered to have suffered a massive stroke.
Stress can cause the heart to work harder, increase blood pressure, and increase sugar and fat levels in the blood. These things, in turn, can increase the risk of clots forming and travelling to the heart or brain, causing a heart attack or stroke.
The result may be neurological, cognitive and physical disability or death. The longer the blockage, the greater the damage. That's why it's critical to get medical help as quickly as possible when signs and symptoms appear, Shafie says.
Excessive daytime sleepiness (EDS) is a prevalent symptom among stroke survivors. This symptom is an independent risk factor for stroke and may reduce stroke survivors' quality of life, cognitive functioning, and daytime functional performance.
A stroke can cause permanent loss of function. The long-term effects of stroke depend on which part of the brain was damaged and by how much. Early treatment and rehabilitation after stroke can improve recovery and many people regain a lot of function.
Usually, a silent stroke is discovered unexpectedly on a brain CT or brain MRI. These imaging tests can easily distinguish past strokes from recent strokes.