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Study breakdown

Cannabis vaping can cause acute respiratory failure requiring ventilation

ReviewPreliminary evidence
The takeaway

A review of published cases found that vaping cannabis oil can cause acute respiratory failure, with patients often requiring mechanical ventilation, and identified key ingredients in cannabis oil formulations that may contribute to lung injury.

Cannabis vapers, emergency physicians, and pulmonologists.

Acute respiratory failure requiring mechanical ventilation

What the researchers found

Literature review identified cases of acute respiratory failure from vaping cannabis oil. Common clinical features included respiratory failure requiring various modes of ventilation. The review summarized common laboratory abnormalities and the role of steroids in treatment. Different cannabis oil formulations and key ingredients were identified as potentially responsible for vaping-associated lung injury.

Why it matters

Acute respiratory failure from cannabis vaping can be life-threatening. Understanding the clinical presentation and responsible ingredients helps clinicians respond appropriately.

The numbers in context

No specific pooled statistics provided. Review compiled clinical details across published cases.

How the study worked

Case series with literature review analyzing published reports of acute respiratory failure from vaping cannabis oil, summarizing clinical details including age, length of stay, ventilation mode, and treatment.

What this study cannot tell us

Based on published case reports which may not represent all cases. Specific causative agents were still being investigated at time of publication.

How to read the evidence

Case series and literature review with limited ability to establish incidence or causation.

When this study was published

2020 review.

The bigger picture

This review emerged during the EVALI crisis and contributed to understanding the specific risks of cannabis oil vaping versus nicotine vaping.

Questions still open

  • Which specific ingredients in cannabis oil formulations cause the most lung damage? Are regulated cannabis vape products safer than black market ones?

Common questions

Can vaping cannabis cause respiratory failure?
Yes, this review documented cases of acute respiratory failure from cannabis oil vaping, with some patients requiring mechanical ventilation.
What in cannabis vape products causes lung damage?
The review identified different cannabis oil formulations and key ingredients that may contribute, though the specific causative agents were still being investigated.

Read the original research

Cannabis Vaping-Induced Acute Pulmonary Toxicity: Case Series and Review of Literature.

Journal of investigative medicine high impact case reports, 8, 2324709620947267

Citation

Adapa, Sreedhar; Gayam, Vijay; Konala, Venu Madhav; Annangi, Srinadh; Raju, Mina P; Bezwada, Vishnu; McMillan, Christine; Dalal, Hussain; Mandal, Amrendra; Naramala, Srikanth. (2020). Cannabis Vaping-Induced Acute Pulmonary Toxicity: Case Series and Review of Literature.. Journal of investigative medicine high impact case reports, 8, 2324709620947267. https://doi.org/10.1177/2324709620947267

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