Aerobic exercise performance is reduced following prolonged cold-water immersion
Undersea Hyperb Med. 2023 Fourth Quarter;50(4):359-372.ABSTRACTWe tested the hypotheses that self-paced aerobic exercise performance is reduced following four hours of cold-water immersion when breathing air and further reduced when breathing 100% oxygen (O2). Nine healthy adults (four women; age 24 ± 3 years; body fat 17.9 ± 6.4%; VO2max 48±9 mL • kg • minute⁻¹) completed three visits: a no-immersion control trial and two experimental trials consisting of a four-hour cold-water immersion (20.1±0.3°C) either breathing air (FIO2 = 0.21) or O2 (FIO2 = 1.0). During the no-immersion control trial and following imme...
Source: Undersea and Hyperbaric Medicine - December 6, 2023 Category: Sports Medicine Authors: Hayden W Hess Zachary J Schlader Blair D Johnson Riana R Pryor David Hostler Source Type: research
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
Efficacy of hyperbaric oxygen after microtia reconstruction using costal cartilage: A retrospective case-control study
This study sought to determine the effectiveness of HBO2 therapy for the prevention of postoperative complications after framework grafting in microtia reconstruction.METHODS: We retrospectively evaluated postoperative complications and compared outcomes in pediatric patients who underwent costal cartilage grafting for microtia reconstruction at our institution between 2011 and 2015, according to whether or not they received postoperative HBO2 therapy. HBO2 therapy was applied once daily for a total of 10 sessions starting on the first postoperative day.RESULTS: During the study period, eight patients received HBO2 therapy...
Source: Undersea and Hyperbaric Medicine - December 6, 2023 Category: Sports Medicine Authors: Naoki Murao Akihiko Oyama Yuhei Yamamoto Emi Funayama Kosuke Ishikawa Taku Maeda Source Type: research
Treatment of pediatric cerebral radiation necrosis using hyperbaric oxygenation
CONCLUSION: In addition to other available pharmacologic therapies, hyperbaric oxygenation should be considered for the treatment of pediatric patients with cerebral radiation necrosis.PMID:38055883 (Source: Undersea and Hyperbaric Medicine)
Source: Undersea and Hyperbaric Medicine - December 6, 2023 Category: Sports Medicine Authors: Kelly Johnson-Arbor Source Type: research
Analysis of the cardiovascular effects of hyperbaric oxygen therapy in diabetic patients
Undersea Hyperb Med. 2023 Fourth Quarter;50(4):425-431.ABSTRACTDuring hyperbaric oxygen (HBO2) therapy in humans, there are changes in cardiovascular physiology due to high pressure and hyperoxygenation. Peripheral vasoconstriction, bradycardia, and a decrease in cardiac output are observed during HBO2 therapy. These physiological effects of HBO2 therapy on the cardiovascular system are tolerated in healthy people. However, patients with underlying cardiac disease may experience severe problems during HBO2 therapy, such as pulmonary edema and death. In addition, cardiac complications may occur in patients with diabetes mel...
Source: Undersea and Hyperbaric Medicine - December 6, 2023 Category: Sports Medicine Authors: Kubra Canarslan-Demir Kubra Ozgok-Kangal Ayse Saatci-Yasar Mehmet Akif Erdol Bayram Koc Source Type: research
Hyperbaric oxygen therapy for treatment of COVID-19-related parosmia: a case report
Undersea Hyperb Med. 2023 Fourth Quarter;50(4):433-435.ABSTRACTParosmia is a qualitative olfactory dysfunction characterized by distortion of odor perception. Traditional treatments for parosmia include olfactory training and steroids. Some patients infected with COVID-19 have developed chronic parosmia as a result of their infection. Here, we present the case of a patient who developed parosmia after a COVID-19 infection that was not improved by traditional treatments but found significant improvement after hyperbaric oxygen therapy[A1].PMID:38055885 (Source: Undersea and Hyperbaric Medicine)
Source: Undersea and Hyperbaric Medicine - December 6, 2023 Category: Sports Medicine Authors: Lior Krimus Syed Hasan Rizvi Anton Marinov Hance Clarke Rita Katznelson Source Type: research
Buoyant ascent rate profiles for the MK10 and MK11 submarine escape and immersion equipment
CONCLUSIONS: The Vt of buoyant ascents is significantly affected by body weight. As the mean ascent rate of the MK11 is slower than that of the MK10, ascent rate profile differences between the suits do not appear to explain the recent increase in pulmonary barotrauma incident rates during escape training.PMID:38055875 (Source: Undersea and Hyperbaric Medicine)
Source: Undersea and Hyperbaric Medicine - December 6, 2023 Category: Sports Medicine Authors: David M Fothergill Christopher S Frederick Linda M Hughes Source Type: research
Aerobic exercise performance is reduced following prolonged cold-water immersion
Undersea Hyperb Med. 2023 Fourth Quarter;50(4):359-372.ABSTRACTWe tested the hypotheses that self-paced aerobic exercise performance is reduced following four hours of cold-water immersion when breathing air and further reduced when breathing 100% oxygen (O2). Nine healthy adults (four women; age 24 ± 3 years; body fat 17.9 ± 6.4%; VO2max 48±9 mL • kg • minute⁻¹) completed three visits: a no-immersion control trial and two experimental trials consisting of a four-hour cold-water immersion (20.1±0.3°C) either breathing air (FIO2 = 0.21) or O2 (FIO2 = 1.0). During the no-immersion control trial and following imme...
Source: Undersea and Hyperbaric Medicine - December 6, 2023 Category: Sports Medicine Authors: Hayden W Hess Zachary J Schlader Blair D Johnson Riana R Pryor David Hostler Source Type: research
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
