E-Cigarette Use, Bronchiolitis Obliterans, and Constrictive Bronchiolitis: Scoping Review with ☸️SAIMSARA

Name: SAIMSARA Evidence Object longevity::E_CIGARETTE_BRONCHIOLITIS_OBLITERANS_PM
Creator: SAIMSARA
License: https://saimsara.com/license/

SAIMSARA

doi:10.62487/saimsarac97ceff8

SAIMSARA Journal

Machine-Readable Science • ISSN 3054-3991

E-Cigarette Use, Bronchiolitis Obliterans, and Constrictive Bronchiolitis: Scoping Review with ☸️SAIMSARA

Longevity & Public Health

Issue 2, Volume 1, 2026

Chat with this issue

DOI: 10.62487/saimsarac97ceff8

Editorial note

• Last update: 2026-05-30 09:48:54

What is this paper about

This review separates the vaping–“popcorn lung” concern from hype by showing that the current evidence is biologically plausible and clinically observed, but still low-certainty. The full read is valuable because it maps the rare human cases, chemical exposure data, occupational diacetyl precedent, and major evidence gaps in one structured evidence map.

Human-verified editorial review Verified by World ID proof-of-human. This editorial layer was submitted from a SAIMSARA account verified as a unique human.

Video summary generated from this ☸️SAIMSARA evidence map. Full reference-linked paper and evidence JSON are available after purchase.

Abstract: To map and synthesize the scientific literature on constrictive bronchiolitis and bronchiolitis obliterans, with a specific focus on the emerging association with e-cigarette use, encompassing histopathological features, chemical exposures, clinical outcomes, and management strategies across diverse etiological contexts. The review uses 46 references and builds its evidence map from 34 original studies with 1656 total participants/sample observations (topic-deduplicated ΣN). The evidence mapped here supports a biologically plausible and clinically observed but low-certainty link between e-cigarette aerosol inhalation and constrictive bronchiolitis, anchored by detection of diacetyl in 39 of 51 flavored products at concentrations up to 239 μg per e-cigarette and methylglyoxal in all tested JUUL pod flavors. Histopathologic confirmation of small airway-centered fibrosis with partial reversal after cessation, alongside a life-threatening adolescent case with persistent fixed airflow obstruction, indicates that vaping should be considered in the differential diagnosis alongside established occupational, transplant-related, and autoimmune causes of this disorder. Clinically, this highlights vaping cessation and exposure history-taking as immediate priorities in young patients presenting with unexplained fixed airflow obstruction. The dominant uncertainty remains the absence of prospective cohort data, and future research should establish longitudinal vaping cohorts with serial pulmonary function and imaging to define incidence, latency, and dose-response.
.

Keywords: e-cigarette; vaping; bronchiolitis obliterans; constrictive bronchiolitis; diacetyl; flavoring-related lung disease; small airway fibrosis; popcorn lung; occupational lung disease; lung transplantation

Review Stats

Final search date and database lock: 2026-05-30 10:41:07 CEST
Plan: Pro (expanded craft tokens; source: PubMed)
Source: PubMed
Total Abstracts/Papers: 249
Downloaded Abstracts/Papers: 249
Included original and non-original Abstracts/Papers (all): 56
Included original Abstracts/Papers (Vote counting by direction of effect): 34
Reference Index (links used in paper): 46
Total participants/sample observations (topic deduplicated ΣN): 1656

Get access to the full paper

Unlock the full evidence map

Full paper access includes the complete human-readable review, figures, reference index, PDF export, and machine-readable Evidence JSON download.
Evidence JSON can also be purchased separately if you only need the LLM-ready object for agent, AI, or RAG workflows.
Institutional or library access? Sign in with your institution email to open all available SAIMSARA papers under your institution access arrangement.
Need a SAIMSARA review on your own topic? ☸️Request.

Reference Index (46)

[1] Review of Health Consequences of Electronic Cigarettes and the Outbreak of Electronic Cigarette, or Vaping, Product Use-Associated Lung Injury. — https://doi.org/10.1007/s13181-020-00772-w
[2] Obliterative (constrictive) bronchiolitis. — https://doi.org/10.1055/s-0032-1325161
[3] Bronchiolitis. Pathologic considerations. — https://doi.org/10.1093/ajcp/109.1.101
[4] E-Cigarette Use, Small Airway Fibrosis, and Constrictive Bronchiolitis. — https://doi.org/10.1056/evidoa2100051
[5] Bronchiolitis obliterans. — https://doi.org/10.1055/s-2000-9846
[6] Constrictive (obliterative) bronchiolitis. — https://doi.org/10.1097/00063198-199809000-00008
[7] Environmental and occupational bronchiolitis obliterans: new reality. — https://doi.org/10.1016/j.ebiom.2023.104760
[8] Popcorn lung and bronchiolitis obliterans: a critical appraisal. — https://doi.org/10.1007/s00420-008-0337-x

Unlock the full paper to view the complete Reference Index.