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People recently diagnosed with lung cancer are at higher risk of having a stroke than those without lung tumors, suggests a large new study from Taiwan.
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.
"This is one more telling sign of the long term risk of smoking," said Dr. Andrew Russman, a stroke specialist at the Henry Ford Hospital in Detroit, who was not part of the study.
The Taiwanese researchers didn't factor in lifestyle issues, such as smoking, drinking or diet, that might influence stroke risk, explained senior author, Dr. Fung-Chang Sung of the China Medical University, to Reuters Health in an email.
Still, they report in the journal Stroke, that stroke risk was highest during the first three months after lung cancer diagnosis for men and during the first four-to-six months for women. Risk decreased in men after one year and after two years in women.
They 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 wh
Read more: http://www.foxnews.com/health/2011/09/22/lung-cancer-linked-to-risk-stroke/#ixzz1ZAipi0NF
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