Bubble rupture & amp; viability of red blood cells under resonant acoustic standing waves
CONCLUSION: Resonant acoustic standing waves effectively rupture bubbles of 300μm to 900μm within a simplified swine thigh model. The average dissolved gas content was 44% due to resonant acoustic waves at powers above 20W. No significant effect on red blood cell counts was observed.PMID:38055877 (Source: Undersea and Hyperbaric Medicine)
Source: Undersea and Hyperbaric Medicine - December 6, 2023 Category: Sports Medicine Authors: Edwin L ópez Ramos Manuel Rivera Bengoechea Silvina Cancelos Mancini Carlos Mar ín Martín Source Type: research

Hyperbaric treatment deviations for U.S. Navy divers: Spinal DCS
We describe a detailed recompression treatment regimen that deviated from standard USN protocol for an active-duty USN diver with a severe, delayed presentation of spinal cord DCS.CASE REPORT: A USN diver surfaced from his second of three dives on a standard Navy 'no-Decompression' Air SCUBA dive (Max depth 101 fsw utilizing a Navy Dive Computer) and developed mid-thoracic back pain, intense nausea, paresthesias of bilateral feet, and penile erection. Either not recognizing the con- stellation of symptoms as DCS and after resolution of the aforementioned symptoms, he completed the third planned dive (essentially an in-wate...
Source: Undersea and Hyperbaric Medicine - December 6, 2023 Category: Sports Medicine Authors: John DeMis Brian Michael Keuski April Due Source Type: research

Altitude Diving on a Closed Circuit Oxygen Rebreather
Undersea Hyperb Med. 2023 Fourth Quarter;50(4):391-393.ABSTRACTClosed-circuit rebreather diving is becoming more common. Rebreathers are complicated, adding to the stress of diving. Also adding to this complexity in the presented case is diving at a high-altitude, cold-water reservoir in Colorado. One diver experienced an oxygen-induced seizure at depth. The other diver had a rapid ascent with loss of consciousness. In this case, two experienced divers recovered from a possible devastating dive. Fortunately, they both returned to their pre-dive baseline health. Dive plan- ning is important, but as in this case, dive execut...
Source: Undersea and Hyperbaric Medicine - December 6, 2023 Category: Sports Medicine Authors: Jonathan Conard Source Type: research

Memory surfacing among veterans with PTSD receiving hyperbaric oxygen therapy
DISCUSSION: Among individuals with PTSD, the surfacing of new memories, accompanied by emotional distress and somatic pain, is common during HBO2. The surfacing of memories sheds light on the biological effect of HBO2 on the brain sequela of PTSD. It is highly important that in treating patients for any indication, HBO2 medical teams be aware and capable of addressing memory surfacing, particularly in those with a history of trauma.PMID:38055880 (Source: Undersea and Hyperbaric Medicine)
Source: Undersea and Hyperbaric Medicine - December 6, 2023 Category: Sports Medicine Authors: Keren Doenyas-Barak Ilan Kutz Erez Lang Gabriela Levi Shai Efrati Source Type: research

Hyperbaric hydrogen therapy improves secondary brain injury after head trauma
CONCLUSION: Hyperbaric hydrogen therapy may be effective for posttraumatic secondary brain injury.PMID:38055881 (Source: Undersea and Hyperbaric Medicine)
Source: Undersea and Hyperbaric Medicine - December 6, 2023 Category: Sports Medicine Authors: Yohei Otsuka Satoshi Tomura Terushige Toyooka Satoru Takeuchi Arata Tomiyama Tomoko Omura Daizoh Saito Kojiro Wada Source Type: research