Impact of CO2 Absorption on Gas Exchange and Ventilation Patterns While Breathing Into a Snow Air Pocket

Launched by INSTITUTE OF MOUNTAIN EMERGENCY MEDICINE · Mar 19, 2025

Keywords

ClinConnect Summary

This clinical trial is studying how removing carbon dioxide (CO2) from the air in a snow pocket can help people who are trapped in an avalanche. When someone is buried, they can breathe in air that has less oxygen and more CO2, which can make it hard for them to survive. The researchers want to see if using a material called soda lime can effectively absorb CO2 while a person breathes, helping to keep oxygen levels stable and improving their chances of survival. Previous studies have shown that high levels of CO2 can lead to serious health issues, so finding a way to manage this could be crucial.

To participate in this trial, individuals must be between 18 and 60 years old, have a body mass index under 30, and be in good health (classified as ASA class 2 or lower). They will need to provide written consent to take part. Participants can expect to engage in breathing tests while being monitored for how well their bodies are exchanging gases and maintaining healthy blood flow. This study is currently active, and although it is not recruiting new participants right now, it aims to gather important information that could improve outcomes for avalanche victims in the future.

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • Age: 18 - 60 yrs.
• • Body mass index \< 30 kg/m2
• • ASA class ≤2
• • Providing informed and written consent
• Exclusion Criteria:
• • ASA \>2
• • Pregnancy
• • Smoking