Clinical trials: Avalanche Burial
Avalanche Burial
Impact of CO2 Absorption on Gas Exchange and Ventilation Patterns While Breathing Into a Snow Air Pocket
Asphyxia is by far the most common cause of death after critical avalanche burial. The presence of an air pocket increases the survival chances, but expired air rich in carbon dioxide (CO2) progressively displaces oxygen (O2) in…
- Trial name
- AVACO2R (NCT06895759)
- Testing
- Soda lime
- Where
- Italy
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Institute of Mountain Emergency Medicine
Avalanche, Landslide, or Mudslide, Asphyxia; Immersion
Efficacy and Pathophysiological Implications of a New Asphyxiation Delaying Device
Survival of fully buried avalanche victims depends in major part on a triad of hypoxia, hypercapnia, and hypothermia and therefore decreases rapidly after complete burial.
- Trial name
- SAFEBACK (NCT05779540)
- Testing
- Safeback SBX
- Where
- Italy
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Institute of Mountain Emergency Medicine
Hypoxia, Hypothermia, Accidental
Triple H ODC Trial
In an avalanche burial with an air pocket hypercapnia (and hypoxia) develops within few minutes, hypercapnia increases the rate of cooling and therefore the development of hypothermia.
- Conditions
- Hypoxia, Hypothermia, Accidental, Hypercapnia, Avalanche, Landslide, or Mudslide
- Trial name
- 3H-ODC (NCT04041531)
- Testing
- blood sampling
- Where
- Austria
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Medical University Innsbruck
Avalanche Burial
Changes in the Carbon Dioxide Content in the Body During a Simulated Avalanche Burial With and Without the Use of a Breathing Tube System.
Every year, around 100 people die in avalanches in the Alps. Many of these accidents occur during winter sports. In most cases, the victims suffocate under the snow after the avalanche has come to a standstill.
- Trial name
- Avalanox (NCT06802744)
- Testing
- Addition of an artificial air-pocket device during simulated avalanche burial, Addition of a non-functioning artificial air-pocket device during simulated avalanche burial
- Where
- Switzerland
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Klinik fur Pneumologie und Schlafmedizin Kantonsspital Aarau
Hypoxic Respiratory Failure, Hypercapnic Respiratory Failure
Snow Physical Properties and Human Ventilatory Response
Sufficient oxygenation is critical for completely buried avalanche victims to avoid life-threatening consequences during hypoxic exposure.
- Conditions
- Hypoxic Respiratory Failure, Hypercapnic Respiratory Failure, Avalanche Burial, Snow Physical Properties
- Trial name
- NCT03082105
- Testing
- Breathing in snow
- Where
- Italy
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Institute of Mountain Emergency Medicine