New avalanche, snow burial practice guidelines

The guidelines start by addressing prevention. They emphasize avalanche avoidance as a primary tactic for averting injury or death. Experts recommend that individuals planning to enter areas prone to avalanches educate themselves about avalanche forecasting and avoidance. Overall, conservative judgment and risk-reducing strategies should be employed to avoid danger. “If an avalanche accident occurs, rescue by one’s companions — including appropriate resuscitation and advanced life support measures — are critically important to reduce avalanche morbidity and mortality,” said Dr. Van Tilburg.

If an avalanche occurs, the guidelines recommend trying to avoid being caught and buried by the moving snow. Escape should be attempted by any means necessary. Covering the face and mouth may help avoid getting debris or snow caught in an airway. If unable to get out of the path, people should immediately try to jettison skis or snowboard.

“A victim with attached skis, snowboard, or snowshoes will likely be buried deeper than a victim without attached impediments, and extrication will likely be more difficult,” explained Dr. Van Tilburg. “Removing equipment, if possible, may improve survival chances. A backpack should be kept on to provide possible protection against trauma.”

Travelers should also consider using an avalanche airbag and an artificial air pocket device, the former helps prevent full burial and the latter helps prevent suffocation. Because of the potential danger from head trauma, helmets should also be worn.

The guidelines are very clear in establishing the proper rescue sequence. “During an avalanche accident, the rescuers should establish leadership; secure the scene; perform surface, transceiver, and pinpoint (probe) searchers; shovel strategically; and notify emergency services when appropriate,” stated Dr. Van Tilburg. To facilitate this, the experts recommend that each traveler use an avalanche transceiver and carry a collapsible probe for use during a pinpoint search. Metal shovels are a critical rescue tool for quick extrication. Travelers should be aware that some electronic devices can interfere with transceivers. Cell phones should be turned off in avalanche terrain.

In a professional rescue, the guidelines say that boundary control and scene marking should be used. Also, data indicate that a RECCO search system can enhance a team’s efforts. Dogs trained in avalanche rescue, along with helicopter teams, are helpful as part of a professional rescue effort as well.

The last section details guidelines for resuscitation. In a burial situation, resuscitation can begin as soon as the head and chest areas are exposed. In the field, trauma care should be included in any resuscitation effort.

These comprehensive guidelines for prevention and management of avalanche accidents present an opportunity to better understand best practices based on the most up-to-date data, analyzed by leading experts in the field of wilderness medicine. “The guidelines presented in this article are general evidence-based recommendations for prevention, rescue, and resuscitation for avalanche accidents,” concluded Dr. Van Tilburg. “The foundation of avalanche safety is avoidance of high-risk avalanche-prone areas. This should be emphasized for both professional personnel and recreational enthusiasts.”