doi:10.1017/dmp.2023.179engYánez Benñitez, CarlosLorente-Aznar, TeófiloLabaka, IdurreSoteras, IñigoBaselga, MartaMorishita, KojiRibeiro, MarceloGüemes, AntonioExtremity Tourniquet Self-Application by Antarctica Zodiac Crew MembersART-2023-137177Search and rescue teams and Antarctic research groups use protective cold-water anti-exposure suits (AES) when cruising on Zodiacs. Extremity tourniquet (ET) self-application (SA) donned with AESs has not been previously studied. Our study therefore assessed the SA of 5 commercial ETs (CAT, OMNA, RATS, RMT, and SWAT-T) among 15 volunteers who donned these suits. Tourniquet‘s SA ability, ease of SA, tolerance, and tourniquet preference were measured. All ETs tested were self-applied to the upper extremity except for the SWAT, which was self-applied with the rest to the lower extremity. Ease- of- SA mean values were compared using the Friedman and Durbin-Conover post hoc tests (P < 0.001). Regarding the upper extremity, OMNA achieved the highest score of 8.5 out of 10, while RMT, and SWAT received lower scores than other options (P < 0.001). For lower extremities, SWAT was found to be inferior to other options (P < 0.01). Overall, OMNA was the best performer. The RATS showed significantly lower tolerance than the other groups in repeated- measures ANOVA with a Tukey post hoc test (P < 0.01). Additionally, out of the 5 ETs tested, 60% of subjects preferred OMNA. The study concluded that SA commercial ETs are feasible over cold-water anti-exposure suits in the Antarctic climate.2023http://zaguan.unizar.es/record/13179310.1017/dmp.2023.179http://zaguan.unizar.es/record/131793oai:zaguan.unizar.es:131793Disaster Medicine and Public Health Preparedness 17, e561 (2023), 1-8All rights reservedhttp://www.europeana.eu/rights/rr-f/info:eu-repo/semantics/closedAccess