Heart Health Risks Await People Who Are Into E-Cigarettes Now: Study

by Rishika Gupta on  March 9, 2019 at 11:59 PM Research News
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E-cigarettes will not be eliminating your risk of developing heart disease; It is a matter of fact contributing to it. People those are vaping have been found to be at 56 percent higher risk of having a heart attack and are 30 percent more likely to suffer a stroke.
 Heart Health Risks Await People Who Are Into E-Cigarettes Now: Study
Heart Health Risks Await People Who Are Into E-Cigarettes Now: Study

Concerns about the addictive nature of e-cigarettes--now used by an estimated 1 out of 20 Americans--may only be part of the evolving public health story surrounding their use, according to data being presented at the American College of Cardiology's 68th Annual Scientific Session. New research shows that adults who report puffing e-cigarettes or vaping are significantly more likely to have a heart attack, coronary artery disease, and depression compared with those who don't use them or any tobacco products.

"Until now, little has been known about cardiovascular events relative to e-cigarette use. These data are a real wake-up call and should prompt more action and awareness about the dangers of e-cigarettes," said Mohinder Vindhyal, MD, assistant professor at the University of Kansas School of Medicine Wichita and the study's lead author.

E-cigarettes--sometimes called "e-cigs," "vapes," "e-hookahs," "vape pens" or "electronic nicotine delivery systems"-- are battery-operated, handheld devices that mimic the experience of smoking a cigarette. They work by heating the e-liquid, which may contain a combination of nicotine, solvent carriers (glycerol, propylene and/or ethylene glycol) and any number of flavors and other chemicals, to a high enough temperature to create an aerosol, or "vapor," that is inhaled and exhaled. According to Vindhyal, there are now more than 460 brands of e-cigarettes and over 7,700 flavors.

E-cigarettes have been gaining in popularity since being introduced in 2007, with sales increasing nearly 14-fold in the last decade, researchers said. But they are also hotly debated--touted by some as a safer alternative to smoking tobacco, while others are sounding the alarm about the explosion of vaping among teens and young adults.

This study found that compared with nonusers, e-cigarette users were 56 percent more likely to have a heart attack and 30 percent more likely to suffer a stroke. Coronary artery disease and circulatory problems, including blood clots, were also much higher among those who vape--10 percent and 44 percent higher, respectively. This group was also twice as likely to suffer from depression, anxiety and other emotional problems.

Most, but not all, of these associations held true when controlling for other known cardiovascular risk factors, such as age, sex, body mass index, high cholesterol, high blood pressure, and smoking. After adjusting for these variables, e-cigarette users were 34 percent more likely to have a heart attack, 25 percent more likely to have coronary artery disease and 55 percent more likely to suffer from depression or anxiety. Stroke, high blood pressure, and circulatory problems were no longer statistically different between the two groups.

"When the risk of heart attack increases by as much as 55 percent among e-cigarettes users compared to nonsmokers, I wouldn't want any of my patients nor my family members to vape. When we dug deeper, we found that regardless of how frequently someone uses e-cigarettes, daily or just on some days, they are still more likely to have a heart attack or coronary artery disease," Vindhyal said.

The study, one of the largest to date looking at the relationship between e-cigarette use and cardiovascular and other health outcomes and among the first to establish an association, included data from a total of 96,467 respondents from the National Health Interview Survey, a Centers for Disease Control and Prevention-fielded survey of Americans, from 2014, 2016 and 2017. The 2015 survey did not include any e-cigarette-related questions. In their analyses, researchers looked at the rates of high blood pressure, heart attack, stroke, coronary artery disease, diabetes and depression/anxiety among those who reported using e-cigarettes (either some days or daily) and nonusers. Those who reported using e-cigarettes were younger than nonusers (33 years of age on average vs. 40.4 years old).

Researchers also compared the data for reported tobacco smokers and nonsmokers. Traditional tobacco cigarette smokers had strikingly higher odds of having a heart attack, coronary artery disease, and stroke compared with nonsmokers--a 165, 94 and 78 percent increase, respectively. They were also significantly more likely to have high blood pressure, diabetes, circulatory problems, and depression or anxiety.

The researchers also looked at health outcomes by how often someone reported using e-cigarettes, either "daily" or "some days." When compared to non-e-cigarette users, daily e-cigarette users had higher odds of heart attack, coronary artery disease, and depression/anxiety, whereas some days users were more likely to have a heart attack and suffer from depression/anxiety, with only a trend toward coronary artery disease. Researchers said this could be due to decreased toxic effects of e-cigarette usage, early dissipation of the toxic effects, or the fact that it has not been studied long enough to show permanent damage to portray cardiovascular disease morbidity.

"Cigarette smoking carries a much higher probability of heart attack and stroke than e-cigarettes, but that doesn't mean that vaping is safe," Vindhyal said, adding that some e-cigarettes contain nicotine and release very similar toxic compounds to tobacco smoking. Nicotine can quicken heart rate and raise blood pressure.

There are some limitations. For example, the study design doesn't allow researchers to establish causation, but Vindhyal said it does show a clear association between any kind of smoking and adverse health outcomes. He added that self-reported data is also subject to recall bias. The researchers were also unable to determine whether these outcomes may have occurred before using e-cigarettes. Further longitudinal data is needed.

Source: Eurekalert

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