NCT02521272

Hypercapnia and Gas Exchange Under the Avalanche Snow Model (HyperAvaSM)

Hypercapnia and Gas Exchange Under the Simulated Avalanche Snow

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 12 (actual)
• Sponsor: Czech Technical University in Prague · Academic / Other
• Sex: Male
• Age: 20 Years – 30 Years
• Healthy volunteers: Accepted

Summary

The aim of the study is to investigate respiratory parameters of a person in the simulated avalanche snow and consequent use of the measured data for development of a mathematical-physical model of breathing during increasing hypercapnia in the avalanche.

Detailed description

The study is a part of a university research project aimed at studying physiological conditions and development of breathing parameters of a person breathing in the simulated avalanche snow. Presence of an air pocket and its size play an important role in survival of victims buried in the avalanche snow. Even small air pockets facilitate breathing, yet they do not provide a significant amount of fresh air for breathing. The investigators hypothesize that the size of the air pocket significantly affects the airflow resistance and work of breathing. The aim of the study is to investigate the effect of the air pocket volume on gas exchange and work of breathing in subjects breathing into the simulated avalanche snow and to test, whether it is possible to breathe with zero air pocket.

Conditions

• Accident Caused by Snow Avalanche

Interventions

Type	Name	Description
OTHER	Breathing in the simulated avalanche snow.	Breathing in the simulated avalanche snow with zero air pocket and one-liter air pocket.
DEVICE	air pocket	Zero air pocket or one-liter air pocket in the snow.

Timeline

• Start date: 2012-03-01
• Primary completion: 2012-03-01
• Completion: 2012-03-01
• First posted: 2015-08-13
• Last updated: 2015-08-13

Locations

1 site across 1 country: Czechia