E-Cigarettes, Vaping Devices, and Acute Lung Injury.

Area of Science:

• Pulmonology
• Toxicology
• Public Health

Background:

• E-cigarettes deliver drugs like nicotine or marijuana oils via vaporization.
• Research and regulation have primarily focused on nicotine e-cigarettes.
• Vitamin E acetate contamination in marijuana oils caused a 2019 acute lung injury outbreak.

Purpose of the Study:

• To summarize the 2019 e-cigarette or vaping associated lung injury (EVALI) outbreak.
• To highlight the role of chemical contaminants in e-cigarette-related lung toxicity.
• To emphasize the need for preparedness among respiratory practitioners.

Main Methods:

• Review of the 2019 outbreak data and clinical characteristics.
• Epidemiological investigation linking illness to vitamin E acetate in illicit marijuana products.
• Analysis of regulatory gaps concerning e-cigarette contents.

Main Results:

• The outbreak, termed EVALI, affected over 2,600 people, primarily young men, with severe respiratory symptoms.
• Vitamin E acetate was identified as the causative agent, used to dilute marijuana oils.
• The outbreak led to significant hospitalizations, ICU admissions, and over 50 deaths.

Conclusions:

• The EVALI outbreak demonstrated the severe acute lung toxicity potential of contaminated e-cigarette products.
• Current regulations are insufficient to prevent future outbreaks from chemical contaminants.
• Respiratory clinicians must be prepared to diagnose and manage acute lung injury from e-cigarette use.