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Advanced Therapy Aids Stroke Patients
Date:1/23/2008

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In this study, the researchers compared 80 patients who received IV therapy and 43 patients who received IA therapy at Sacred Heart from 2004 through 2007. Some of the patients who received IA therapy had not responded to IV therapy.

Success rates of IA therapy (defined as opening up of the blocked blood vessel) were 85.7 percent in 2006 and 83.3 percent in 2007. Death rates among patients who received IA therapy were 30.8 percent in 2006 and 27.8 percent in 2007. That's half the 50 percent to 80 percent death rates published in the "natural history outcomes" of large-vessel strokes, the study authors said.

"Without any question, we definitely were able to help patients who failed IV therapy by providing IA therapy," Zylak said. "In the future, for large-vessel clots, IA therapy may well be the best direct therapy, bypassing IV therapy."

He noted that many stroke victims don't receive any treatment, because they don't recognize the signs (such as vision and speech problems, paralysis, and memory difficulties) and don't seek medical care. The sooner a stroke is treated, the more likely treatment will be successful.

"Overall, we are under-treating stroke. There are many patients who could benefit from stroke treatment who aren't getting it for various reasons," Zylak said. "Treatment therapies today are getting dramatic results. If a medical center doesn't offer the more advanced IA therapy, the patient can be taken by helicopter to a center that performs the therapy, even if IV therapy wasn't successful."

Stroke is the third leading cause of death in the United States, killing about 160,000 people a year, according to the National Stroke Association. About 750,000 people suffer from stroke annually.

More information

The Washington University School of Medicine has more about ischemic stroke.


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