Accident Caused by Snow Avalanche
Conditions
Keywords
snow, avalanche, hypercapnia, diffusion
Brief summary
The study is aimed at investigation of respiratory gases propagation in snow. The study involves volunteers breathing into the snow whereas concentrations of gases are measured at various positions in the snow.
Detailed description
The study is aimed at investigation of respiratory gases (oxygen and carbon dioxide) propagation in the simulated avalanche snow. The study involves volunteers breathing into the snow whereas concentrations of gases are measured at various positions in the snow. A special apparatus was created for sampling and measurement of gas concentrations and to assure stable geometry of the experiment required for data evaluation.
Interventions
Re-breathing of gas by breathing into the simulated avalanche snow
Sponsors
Czech Technical University in Prague
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
BASIC_SCIENCE
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 50 Years
Healthy volunteers
Yes
Inclusion criteria
* healthy and fit volunteers, classified as The American Society of Anesthesiologists class I * without a smoking history
Exclusion criteria
* Tiffeneau Index less than 0.70 * any cardiovascular or respiratory condition
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| The length of breathing | Continuously within up to 20 minute interval from the beginning of the breathing experiment | Time to termination of the breathing experiment due to the decision of the tested subject, or determined by high end-tidal carbon dioxide value or by the order by the clinician assessing the health status of the subjects. |
Countries
Czechia
Outcome results
None listed