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Cardiovasc Res. 2019 Nov 7. pii: cvz256. doi: 10.1093/cvr/cvz256. [Epub ahead of print]

Cardiovascular risk of electronic cigarettes: a review of preclinical and clinical studies.

Author information

1
Dorothy M. Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University, 473 W. 12th Avenue, Columbus, OH 43210, USA.
2
College of Nursing, The Ohio State University, Columbus, OH, USA.
3
Department of Physiology and Cell Biology, The Ohio State University College of Medicine and Wexner Medical Center, Columbus, OH, USA.

Abstract

Cigarette smoking is the most preventable risk factor related to cardiovascular morbidity and mortality. Tobacco usage has declined in recent years; however, the use of alternative nicotine delivery methods, particularly e-cigarettes, has increased exponentially despite limited data on their short- and long-term safety and efficacy. Due to their unique properties, the impact of e-cigarettes on cardiovascular physiology is not fully known. Here, we summarize both preclinical and clinical data extracted from short- and long-term studies on the cardiovascular effects of e-cigarette use. Current findings support that e-cigarettes are not a harm-free alternative to tobacco smoke. However, the data are primarily derived from acute studies. The impact of chronic e-cigarette exposure is essentially unstudied. To explore the uniqueness of e-cigarettes, we contemplate the cardiovascular effects of individual e-cigarette constituents. Overall, data suggest that exposure to e-cigarettes could be a potential cardiovascular health concern. Further preclinical research and randomized trials are needed to expand basic and clinical investigations before considering e-cigarettes safe alternatives to conventional cigarettes.

KEYWORDS:

Aerosol; Cardiovascular disease; Electronic cigarette; Nicotine; Smoking; Toxicity

PMID:
31696222
DOI:
10.1093/cvr/cvz256

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