Lung cancer linked to risk of stroke

People recently diagnosed with lung cancer are at higher risk of having a stroke than those without lung tumors, suggests a large new study. Researchers looking at data covering more than 150,000 adults found that among those with lung cancer, 26 in every 1000 experienced a stroke each year, compared with 17 in 1000 who did not have cancer.

It is also found that a less common type of stroke — hemorrhagic stroke, caused by sudden bleeding into the brain — occurred more often among the lung cancer patients than ischemic stroke, which is usually caused by a clot blocking blood flow to brain tissue. Some evidence suggests that excessive bleeding and blood clots, both of which can be caused by tumors, as well as chemotherapy side effects, could partly explain the apparent link between cancer and stroke, researchers note. Read more…

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