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Article

The Acute Effects of Electronic Cigarette Vaping and Tobacco Cigarette Smoking on Choroidal Thickness in Young, Healthy, Habitual, Dual Smokers

1
Department of Ophthalmology, Medical School, University of Patras, 26504 Patras, Greece
2
Department of Pharmacy, Medical School, University of Patras, 26504 Patras, Greece
3
2nd Department of Ophthalmology, “Papageorgiou” General Hospital, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
*
Author to whom correspondence should be addressed.
Toxics 2020, 8(4), 85; https://doi.org/10.3390/toxics8040085
Received: 16 September 2020 / Revised: 4 October 2020 / Accepted: 9 October 2020 / Published: 11 October 2020
(This article belongs to the Special Issue Current Knowledge of E-cigarettes and Heated Tobacco Products)
The present study aims to evaluate and compare the acute effects of tobacco cigarettes (TC) smoking and electronic cigarette (EC) vaping on foveal and choroidal thickness (CT) in young, healthy, dual smokers. Participants underwent four trials: 5 min TC; 5 min EC; 30 min EC; and 60 min nothing (sham trial). Scans before and immediately after each trial were obtained using spectral domain optical coherence tomography with the enhanced depth imaging mode. Changes in central foveal thickness (CFT), subfoveal choroidal thickness (SFCT), and CT at fourother points, 500 μm and 1000 μm temporally and nasally to the fovea, were measured. Forty-seven participants (33 male, 14 female; mean age 24.85 ± 1.57 years) were included. They smoked 13.53 ± 5.27 TCs/day for 6 ± 2.3 years and vaped ECs for the past 2.4 ± 1.08 years. We did not observe any statistically significant change in SFCT, CFT, and CT of the other points after any of the fourtrials. The acute changes in CFT and CT after EC vaping or TC smoking did not differ significantly compared to the sham trial. Smoking and vaping does not seem to result in statistically significant acute alterations in foveal and CT in young, dual smokers. View Full-Text
Keywords: choroidal thickness; central macular thickness; dual smokers; electronic cigarettes; electronic cigarette vaping; nicotine; smoking; tobacco cigarettes choroidal thickness; central macular thickness; dual smokers; electronic cigarettes; electronic cigarette vaping; nicotine; smoking; tobacco cigarettes
MDPI and ACS Style

Makri, O.E.; Pallikari, A.; Kagkelaris, K.; Mastronikolis, S.N.; Karanasios, G.; Symeonidis, C.; Plotas, P.; Georgakopoulos, C.D. The Acute Effects of Electronic Cigarette Vaping and Tobacco Cigarette Smoking on Choroidal Thickness in Young, Healthy, Habitual, Dual Smokers. Toxics 2020, 8, 85. https://doi.org/10.3390/toxics8040085

AMA Style

Makri OE, Pallikari A, Kagkelaris K, Mastronikolis SN, Karanasios G, Symeonidis C, Plotas P, Georgakopoulos CD. The Acute Effects of Electronic Cigarette Vaping and Tobacco Cigarette Smoking on Choroidal Thickness in Young, Healthy, Habitual, Dual Smokers. Toxics. 2020; 8(4):85. https://doi.org/10.3390/toxics8040085

Chicago/Turabian Style

Makri, Olga E., Athina Pallikari, Konstantinos Kagkelaris, Stylianos N. Mastronikolis, Georgios Karanasios, Chrysanthos Symeonidis, Panagiotis Plotas, and Constantine D. Georgakopoulos 2020. "The Acute Effects of Electronic Cigarette Vaping and Tobacco Cigarette Smoking on Choroidal Thickness in Young, Healthy, Habitual, Dual Smokers" Toxics 8, no. 4: 85. https://doi.org/10.3390/toxics8040085

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