For Effective Treatment of Stroke, Speed Counts
In the business world, you’ll often hear the phrase “time is money.” But in the medical world, particularly when it comes to treating victims of stroke, you’ll hear the phrase “time is the brain,” emphasizing that human nerve tissue is rapidly lost as stroke progresses, making immediate treatment critical.
A stroke is a "brain attack,” and is the leading cause of adult disability in the U.S. “The condition occurs when blood flow to an area of the brain is cut off. When this happens, brain cells are deprived of oxygen and begin to die, compromising such functions as memory and muscle control,” says Ann Hanley, MD, a neurologist at NewYork-Presbyterian Hudson Valley Hospital in Cortlandt Manor.
According to the National Stroke Association, each year nearly 800,000 people experience a new or recurrent stroke. Although it can happen to anyone at any time, there are certain risk factors that can increase a person’s chances of having one, including hypertension, diabetes, elevated cholesterol, smoking, obesity, and cardiac arrhythmias.
Strokes can be classified into two general types: an ischemic stroke is a result of a blood clot blocking a blood vessel carrying blood to the brain; less common is a hemorrhagic stroke, in which blood spills into or around the brain and creates swelling and pressure. This type of stroke is most often the result of hypertension.
“Symptoms of stroke can be quite variable,” says Dr. Hanley. “Most commonly they include weakness of the face, arm, and leg on one side of the body, sensory loss on one side of the body, abnormalities of language, vertigo, double vision, and crossed symptoms (affecting one side of the face and the opposite side of the body).” However, for an accurate diagnosis, Dr. Hanley notes that a patient’s history and a physical examination should be used to distinguish between other disorders that can mimic stroke, such as seizure, fainting spells, and low blood sugar to name a few.
Time is brain
Rapid and accurate diagnosis of the kind of stroke and the exact location of its damage is critical to successful treatment. For example, in cases of severe ischemic stroke, treatment involves the use of thrombolytic (clot-busting) therapy, but the medication must be administered within four hours of the onset of symptoms.
“The most recent intervention that has become the gold standard for treating acute ischemic stroke is mechanical thrombectomy (the surgical removal of clots that are blocking blood circulation), which must be performed within six hours of symptom onset,” says Dr. Hanley. She also notes that acute stroke treatment has evolved significantly over the past 20 years. Hemorrhagic strokes can often be managed medically as well but, at times, surgical options may be used depending on the site of the bleeding.
Because time is of the essence when it comes to stroke victims, it’s important to seek prompt medical attention. “If you see a person having a stroke, call 911 immediately,” advises Dr. Hanley. “The death rate and level of disability resulting from strokes can be dramatically reduced by urgent and appropriate medical care. The sooner treatment is started; the more likely there will be a good outcome.”
NewYork-Presbyterian Allen Hospital, NewYork-Presbyterian/Columbia University Medical Center, NewYork-Presbyterian Lower Manhattan Hospital, NewYork-Presbyterian/Weill Cornell Medical Center, along with its regional hospitals are New York State–designated Stroke Centers. NewYork-Presbyterian has received a Gold Plus Stroke re-designation by the American Heart Association. This recognition speaks to our quality stroke care and success with speeding recovery and reducing death and disability for stroke patients.
For more information, visit nyp.org/neuro.
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