• Michael D Klein, Natasha A Sokol, and Laura R Stroud.
• Brown University, Providence, RI, USA.
• Am Fam Physician. 2019 Aug 15; 100 (4): 227235227-235.

AbstractElectronic cigarettes (e-cigarettes) are popular devices designed to heat a liquid solution, often containing nicotine, that generates an inhaled aerosol, or vapor. e-Cigarettes have been marketed as healthier alternatives to traditional cigarettes. Thus, most adult users are current or former smokers who use e-cigarettes to reduce or quit cigarette smoking. Switching completely from cigarettes to e-cigarettes is associated with reduced toxicant exposure and reduced short-term respiratory symptoms; however, long-term health effects of e-cigarettes are unknown. Although a recent randomized trial suggests that e-cigarettes may promote smoking cessation, systematic reviews have had low certainty of evidence regarding cessation. e-Cigarettes pose several potential health risks, including exposure to heavy metals and toxicants, and nicotine poisoning. e-Cigarettes are also popular among youth, with rates of e-cigarette use surpassing those of cigarette use in this population. Youth e-cigarette use is associated with increased risk of subsequent cigarette and marijuana use. Screening for e-cigarette use in youth and adults, including pregnant women, in conjunction with screening for tobacco use, is advised. Education and interventions to prevent e-cigarette use should be provided to all youth. Youth should be counseled to stop using nicotine/tobacco products, including e-cigarettes. Although the impact of e-cigarette use in pregnancy is unknown, nicotine is a teratogen; thus, pregnant women should be counseled to abstain from using all nicotine/tobacco products.

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