NAQC Newsroom: Research

Could E-cigarette Vaping Contribute to Heart Disease?

Friday, August 14, 2020  
Posted by: Natalia Gromov
Kuntic M, Hahad O, Daiber A, Münzel T.
Could E-cigarette Vaping Contribute to Heart Disease?
[published online ahead of print, 2020 Aug 6]. Expert Rev Respir Med. 2020;10.1080/17476348.2020.1807332. doi:10.1080/17476348.2020.1807332

Introduction: E-cigarettes have become a controversial topic. While their benefits are questioned by the scientific community, a part of the medical profession is still supporting them as an effective harm reduction tool for smoking cessation. The impact of E-cigarettes on the cardiovascular system is still elusive.
Areas covered: We assessed results from animal, pre(clinical), and epidemiological studies to critically evaluate and synthesize evidence relevant to the cardiovascular effects of E-cigarettes. Animal studies have demonstrated that E-cigarette vapor exposure can cause endothelial and cardiac dysfunction. However, there have also been reports on the less harmful effects of E-cigarette vapor exposure in comparison to classical tobacco cigarettes. Measurements of flow-mediated dilation in acute human exposure settings have mostly demonstrated that E-cigarettes cause vascular endothelial dysfunction. Long term epidemiological studies have shown that E-cigarette use is associated with an increased risk for cardiovascular disease, although switching from classical tobacco cigarettes to E-cigarettes can have beneficial cardiovascular effects. Misinterpretation of scientific data by activists on either side is another problem.
Expert opinion: In conclusion, we need more and better (pre)clinical data comparing the health effects of E-cigarette vaping as compared with tobacco cigarette smoking, in order to counsel the legislation for better health policies.
Keywords: Electronic nicotine delivery system; acrolein; cardiovascular disease; endothelial dysfunction; oxidative stress; vaping.