From: Prevalence of airway patency and air pocket in critically buried avalanche victims - a scoping review
Airway
Obstructed
Patent
Unknown
Burial time
Short < 35Â min (n = 63, 57%)
12 (19%)
26 (41%)
25 (40%)
Long ≥ 35 min (n= 41, 37%)
6 (15%)
15 (37%)
20 (48%)
Unknown (n = 7, 6%)
0 (3%)
4 (57%)
3 (43%)
Total (n = 111)
18 (16%)
45 (41%)
48 (43%)