E-cigarette Users Have Double the Risk of a Heart Attack
Daily e-cigarette use can nearly double the risk of a heart attack compared to those who have never used e-cigs.
New research adds to the growing body of evidence that e-cigarettes may have a damaging effect on health. (Photo courtesy: AFP Relaxnews/ 6okean/ Istock.com)
A new large-scale US study has found that daily e-cigarette use can nearly double the risk of a heart attack compared to those who have never used e-cigs, with the risk even higher for those who also continue to smoke conventional tobacco cigarettes.
Led by researchers at University of California San Francisco along with a team from George Washington University, the study is the first to look at the relationship between e-cigarette use and heart attacks.
For the research the team gathered data from 69,452 participants who were interviewed about their e-cigarette and tobacco cigarette use, and whether they had ever been told by a health professional that they had had a heart attack.
The responses showed that from the 9,352 participants who were current or former e-cigarette users, 333 (3.6 percent) had experienced a heart attack at some point.
This number was even higher for those who smoked e-cigarettes daily, with 6.1 percent of these participants experiencing a heart attack. The team also found that daily e-cigarette users had around the same odds as a heart attack as those who smoked traditional tobacco cigarettes daily.
The results also showed that using both e-cigarettes and conventional cigarettes -- which was the most common use pattern among e-cigarette users -- appears to be even more dangerous than using either product alone. For those who used both types of cigarettes daily, the odds of having had a heart attack were 4.6 times higher compared to those who had never used either product.
"Most adults who use e-cigarettes continue to smoke cigarettes," said senior author Stanton Glantz, PhD, "While people may think they are reducing their health risks, we found that the heart attack risk of e-cigarettes adds to the risk of smoking cigarettes."
Although the authors did note that there is a "lasting effect" on health even for former smokers, there is some good news, with the team finding that there appears to be no increased risk of a heart attack for former or sometimes e-cigarette users.
"The risk of heart attack starts to drop immediately after you stop smoking," said Glantz. "Our results suggest the same is true when they stop using e-cigarettes."
Although e-cigarettes are often promoted as a safer alternative to conventional cigarettes, recent research has linked them to a variety of health concern such as cardiovascular and lung disease.
"The only way to substantially reduce the risk of a heart attack is to stop using tobacco," Glantz said.
The findings can be found published online in the American Journal of Preventive Medicine.
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