Chronic Airway Disease and Vaping - A First Step

Area of Science:

• Pulmonology
• Toxicology
• Pathology

Background:

• The 2019 outbreak of acute lung injury linked to vaping, termed EVALI, presented with diffuse alveolar damage or organizing pneumonia.
• Histological findings of EVALI primarily include diffuse alveolar damage, acute fibrinous and organizing pneumonia, or organizing pneumonia.

Discussion:

• While EVALI is recognized, histological evidence of long-term lung sequelae from vaping, beyond EVALI, is scarce.
• One case report noted respiratory bronchiolitis in a former smoker with persistent airway obstruction after 9 months of vaping.

Key Insights:

• Histological data on chronic lung disease from vaping, outside EVALI, is limited.
• The long-term respiratory health impacts of e-cigarette use require further investigation.

Outlook:

• Future research should focus on the chronic histopathological changes associated with long-term vaping.
• Understanding the long-term consequences of vaping is crucial for public health and clinical practice.