Survival probability in avalanche victims with long burial (≥60 min): A retrospective study.

Details

Serval ID
serval:BIB_15FC850E8B7A
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Survival probability in avalanche victims with long burial (≥60 min): A retrospective study.
Journal
Resuscitation
Author(s)
Eidenbenz D., Techel F., Kottmann A., Rousson V., Carron P.N., Albrecht R., Pasquier M.
ISSN
1873-1570 (Electronic)
ISSN-L
0300-9572
Publication state
Published
Issued date
09/2021
Peer-reviewed
Oui
Volume
166
Pages
93-100
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Abstract
The survival of completely buried victims in an avalanche mainly depends on burial duration. Knowledge is limited about survival probability after 60 min of complete burial.
We aimed to study the survival probability and prehospital characteristics of avalanche victims with long burial durations.
We retrospectively included all completely buried avalanche victims with a burial duration of ≥60 min between 1997 and 2018 in Switzerland. Data were extracted from the registry of the Swiss Institute for Snow and Avalanche Research and the prehospital medical records of the physician-staffed helicopter emergency medical services. Avalanche victims buried for ≥24 h or with an unknown survival status were excluded. Survival probability was estimated by using the non-parametric Ayer-Turnbull method and logistic regression. The primary outcome was survival probability.
We identified 140 avalanche victims with a burial duration of ≥60 min, of whom 27 (19%) survived. Survival probability shows a slight decrease with increasing burial duration (23% after 60 min, to <6% after 1400 min, p = 0.13). Burial depth was deeper for those who died (100 cm vs 70 cm, p = 0.008). None of the survivors sustained CA during the prehospital phase.
The overall survival rate of 19% for completely buried avalanche victims with a long burial duration illustrates the importance of continuing rescue efforts. Avalanche victims in CA after long burial duration without obstructed airway, frozen body or obvious lethal trauma should be considered to be in hypothermic CA, with initiation of cardiopulmonary resuscitation and an evaluation for rewarming with extracorporeal life support.
Keywords
Avalanches, Burial, Cardiopulmonary Resuscitation, Humans, Hypothermia, Logistic Models, Retrospective Studies, Accidental, Avalanche, Cardiac arrest, ECMO, ECPR, Resuscitation, Triage
Pubmed
Web of science
Open Access
Yes
Create date
15/06/2021 14:35
Last modification date
06/11/2021 6:37
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