Undersea Hyperbar M
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Undersea Hyperbar M · Jan 2014
Initial review of the U.S. Navy's pressurized submarine escape training outcomes.
The U. S. Navy reinstituted pressurized submarine escape training (PSET) for submarine sailors in 2009 after a nearly 30-year absence. ⋯ During the first 39 months of training, 7,025 students screened for PSET with 32% completing all phases, including two pressurized ascents. The most common reason for screening disqualification was presence of upper respiratory congestion. During training, middle ear barotrauma was responsible for 53% of attrition, primarily during the test of pressure.
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Undersea Hyperbar M · Jan 2014
Review Case ReportsFrostbite of both first digits of the foot treated with delayed hyperbaric oxygen:a case report and review of literature.
Frostbite is an uncommon event that can occur from exposure to temperatures below -4 degrees C and can lead to potential serious tissue damage and necrosis. This in turn can result in debilitating amputations in otherwise healthy people. The pathophysiological mechanisms of frostbite have marked similarities to those seen in thermal burns, ischemia/reperfusion injuries and crush injuries--i.e., non-healing wounds and inflammatory processes. These injuries are commonly treated with hyperbaric oxygen therapy. ⋯ Based on our case report as well as the literature and the mechanisms of hyperbaric oxygen, we make the recommendation that this therapy be considered as an addition to the multidisciplinary treatment of frostbite, even after significant delay of treatment.
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Undersea Hyperbar M · Jan 2014
Assessment of hemostaseologic alterations induced by hyperbaric oxygen therapy using point-of-care analyzers.
Exposure to hyperbaric conditions influences the coagulation system. Thromboembolic events and disseminated intravascular coagulation were observed. ⋯ ROTEM and Multiplate were able to detect an activation of platelets after HBO2 therapy via thrombin and arachidonic acid pathways. Previously reported fibrinolysis could not be confirmed.