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EVANSTON, Ill., Jul 21, 2004 (United Press International via COMTEX) -- Illinois scientists say nearly half of patients who suffered strokes or transient ischemic attacks weren't helped by taking aspirin.
"Previous studies conducted at Northwestern Memorial Hospital showed the majority of patients taking low-dose or coated aspirin are not getting the desired antiplatelet effect," Mark J. Alberts, director of the stroke program at Northwestern Memorial Hospital, said Wednesday.
"Now, we've ... shown that aspirin resistance does, in fact, correlate with clinical events. Many patients who are committed to taking aspirin each day are still having strokes or transient ischemic attacks."
Alberts presented the findings at the 5th World Stroke Congress in Vancouver.
Northwestern's scientists found of 59 patients who came to their hospital with a stroke or transient ischemic attack, 73 percent of those taking baby aspirin had no blood-thinning effect and 32 percent taking adult aspirin had no blood-thinning effect.
Copyright 2004 by United Press International.