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Updated: Jul 4, 2025

Comparing the Effects of Electronic Cigarette Vapor and Cigarette Smoke in a Novel In Vivo Exposure System
Published on: May 24, 2017
Comparative systematic review on the safety of e-cigarettes and conventional cigarettes
Josef Yayan1, Karl-Josef Franke2, Christian Biancosino3
1Witten/Herdecke University, Witten, Department of Internal Medicine, Division of Pulmonary, Allergy and Sleep Medicine, HELIOS Clinic Wuppertal, Germany.
Background:
This systematic review evaluated the health risks of electronic cigarettes (e-cigarettes) compared to traditional cigarettes. It examines various studies and research on the subject to provide a comprehensive analysis of potential health risks associated with both smoking methods.
Methods:
The systematic review, incorporating searches in PubMed, Scopus, Web of Science, and the Cochrane Library up to July 2023, examines the results obtained in relevant studies, and provides a critical discussion of the results.
Results:
E-cigarettes exhibit reduced exposure to harmful toxins compared to traditional cigarettes.
Conclusion:
However, concerns persist regarding respiratory irritation and potential health risks, especially among youth, emphasizing the need for comprehensive, long-term research and protective legislation.
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