Cancer patients who have stroke less likely to get clot-busting drug
Cancer patients having a stroke are one-third less likely than stroke patients without cancer to get a gold-standard drug to help dissolve the clot, according to results of a study presented at the American Stroke Association’s International Stroke Conference in Los Angeles.
Strokes in cancer patients can be caused by traditional risk factors such as high blood pressure. But cancer, which can cause blood to clot more easily, and its treatments, are also associated with an increased stroke risk.
The study used data collected through the National Inpatient Sample from 1998 to 2013 on patients hospitalised for an acute ischaemic stroke. These strokes are caused by a blood clot that blocks a vessel in the brain.
The use of both the clot-dissolving drug called alteplase and medical procedures to remove clots in stroke patients has increased since 1998. Interestingly, the study found that in cancer patients who had a stroke, the use of clot-busting medication rose from 0.01 percent in 1998 to 4.23 percent in 2013. Compared to patients who did not have cancer, however, medication use increased from 0.02 percent to 6.38 percent during the same time period.
The use of newer procedures to mechanically remove clots rose from 0.05 percent in 2006 to 1.07 percent in 2013. The increased use was seen in both patients with and without cancer, according to the study, which was led by Dr. Babak Navi, a neurologist at Weill Cornell Medicine in New York City.
Although the study can’t explain why cancer patients are less likely to get clot-busting medication, Dr. Navi said he suspects that cancer patients may get them less often because they have been on blood thinners or have a low blood platelet count. In addition, he said, some cancer patients may not get these drugs because they aren’t expected to do well “which causes a self-fulfilling prophecy.”
A previous study by Dr. Navi and his colleagues published in the Journal of the American College of Cardiology found an increased risk for a stroke or heart attack among patients newly diagnosed with cancer. That study found that 4.7 percent of Medicare cancer patients had a heart attack or stroke within six months of their diagnosis compared to 2.2 percent of Medicare patients who did not have cancer.
Source: American Heart Association
Image Credit: American Heart Association
Published on : Tue, 30 Jan 2018
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