Case report of acute respiratory failure from lipoid pneumonia after THC vape cartridge use | Research

The takeaway

A 28-year-old previously healthy man developed acute respiratory failure from lipoid pneumonia two weeks after starting a street-purchased THC vape cartridge, diagnosed by bronchoalveolar lavage.

Emergency physicians, pulmonologists, cannabis consumers using vape products

All 6 reported cases of THC vape-induced lipoid pneumonia survived with corticosteroids

What the researchers found

A healthy 28-year-old developed acute respiratory failure 2 weeks after using a street-purchased THC vape cartridge. BAL with oil red O staining confirmed acute exogenous lipoid pneumonia. Diffuse alveolar hemorrhage and eosinophilic pneumonia were excluded. IV corticosteroids led to survival and discharge.

Why it matters

This case contributed to the evolving recognition of EVALI during the 2019 outbreak, confirming that THC-containing vape oils can cause acute lipoid pneumonia requiring ICU-level care.

The numbers in context

1 case: 28-year-old male; acute respiratory failure 2 weeks after starting street THC vape cartridge. Oil red O staining confirmed lipoid pneumonia. All 6 reported cases (including prior 5) survived with IV corticosteroids.

How the study worked

Case report with diagnostic workup including bronchoscopy, BAL cytology with oil red O staining, and imaging. Reviewed alongside 5 previously reported cases.

What this study cannot tell us

Single case report; cannot determine which specific component of the vape product caused the lung injury; no product testing performed.

How to read the evidence

Single case report contributing to early recognition of the EVALI outbreak.

When this study was published

Published in 2020.

The bigger picture

This case was part of the wave of EVALI recognition in 2019 that ultimately led to vitamin E acetate being identified as the primary causative agent in illicit THC vape products.

Questions still open

Which lipid component in the vape oil caused the pneumonia? Would earlier recognition of this pattern have prevented some EVALI cases?

Common questions

What is lipoid pneumonia?

Lipoid pneumonia occurs when oil or fat-based substances enter the lungs and cause inflammation. In this case, inhaling THC-containing vape oil introduced lipid material directly into the lungs, triggering acute respiratory failure.

Is all THC vaping dangerous?

This case involved a street-purchased THC vape cartridge, which are often made with unregulated additives. The EVALI outbreak was primarily linked to illicit products containing vitamin E acetate as a cutting agent, not regulated cannabis vaping products.

Read the original research

Vaping-Associated Acute Respiratory Failure Due to Acute Lipoid Pneumonia.

Lung, 198(1), 31-33

View on PubMed ↗Publisher’s paper ↗

Citation

Dicpinigaitis, Peter V; Trachuk, Polina; Fakier, Feizal; Teka, Mestawet; Suhrland, Mark J. (2020). Vaping-Associated Acute Respiratory Failure Due to Acute Lipoid Pneumonia.. Lung, 198(1), 31-33. https://doi.org/10.1007/s00408-019-00277-6