E-Cigarettes linked to heart attacks, strokes


ELECTRONIC cigarettes are often thought of as “healthier” than conventional cigarettes, but the jury’s still out on their potential health risks. Now, a new study has found a link between e-cigarette use and an increased risk of stroke and heart attacks.
The study analyzed information from about 400,000 Americans who took part in a national health survey in 2016. Of these, about 66,800 reported that they regularly used e-cigarettes.
Compared with non-e-cigarette users, regular users had about a 70 percent higher risk of stroke, a 60 percent higher risk of heart attack or angina (chest pain) and a 40 percent higher risk of coronary heart disease.
About 79 percent of e-cigarette users also reported using conventional cigarettes, compared with just 37 percent of non-e-cigarette users.
But the findings linking e-cigarettes with an increased risk of stroke, heart attack and coronary heart disease held even after the researchers took into account whether people were also conventional cigarette smokers, said study lead author Dr. Paul Ndunda, an assistant professor at the University of Kansas School of Medicine.
What’s more, when the researchers analyzed a subset of participants who reported smoking fewer than 100 conventional cigarettes in their lives (meaning they were not regular users of cigarettes), they found that e-cigarette users were still 29 percent more likely to report having a stroke, 25 percent more likely to report having a heart attack and 18 percent more likely to report having coronary heart disease, Ndunda told Live Science.
The findings will be presented next week at American Stroke Association’s International Stroke Conference 2019 in Honolulu, but has not been published in a peer-reviewed journal.
The new finding is “quite concerning,” said Dr. Larry Goldstein, co-director of the Kentucky Neuroscience Institute at the University of Kentucky, who was not involved with the study. “This is the first real data that we’re seeing associating e-cigarette use with hard cardiovascular events” like heart attacks and strokes, Goldstein said in a video interview with the American Stroke Association, which is a division of the American Heart Association (AHA). However, Goldstein noted that the study had limitations. For example, the researchers weren’t able to take into account some factors that are known to increase people’s risk of stroke and heart disease, such as high blood pressure, alcohol use and an unhealthy diet.

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