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Effect of Face Mask on Exhaled Carbon Monoxide of Smokers

NCT04966845 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 120

Last updated 2024-05-31

No results posted yet for this study

Summary

Study of 120 healthy subjects without cardiovascular disease, 40 smokers of conventional cigarettes, 40 exclusive users of Heat-non-Burn Cigarettes and 40 nonsmokers.

Baseline measurements of CO will be performed in the morning after awakening without the use of any mask when they arrive at hospital. This time point is selected to detect the lowest exhaled CO levels after the abstinence of smoking during the sleep.

After baseline CO measurement, subjects will be randomly assigned to assess exhaled CO concentration at the end of an 8h morning shift wearing a mask at hospital, or to CO assessment at the end of an 8h morning period without mask out of the hospital (usually home stay). Then the subjects will be crossed over to CO assessment at end of an 8h period without mask out of the hospital after their shift or to an 8h afternoon period wearing a mask during an afternoon hospital shift respectively.

Conditions

  • Concentration of Exhaled Carbon Monoxide

Interventions

DIAGNOSTIC_TEST

measurement of concentration on exhaled Carbon Monoxide

exhaled carbon monoxide (eCO) concentration \[parts per million (ppm) was measured by a specific device \[Bedfont Scientific, Maidstone, Kent UK\]

Sponsors & Collaborators

  • University of Athens

    lead OTHER

Principal Investigators

  • Ignatios Ikonomidis, Professor · National and Kapodistrian University of Athens

Eligibility

Min Age
21 Years
Max Age
70 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2021-07-02
Primary Completion
2021-07-20
Completion
2021-07-20

Countries

  • Greece

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04966845 on ClinicalTrials.gov