Anwei Liu, Xiaogan Hou, Jian-Yun Nie, Q. Wen, Zhi-guo Pan
{"title":"Decompression sickness followed by diabetic ketoacidosis and sepsis shock: an unusual case report","authors":"Anwei Liu, Xiaogan Hou, Jian-Yun Nie, Q. Wen, Zhi-guo Pan","doi":"10.22462/01.01.2023.13","DOIUrl":"https://doi.org/10.22462/01.01.2023.13","url":null,"abstract":"Decompression sickness (DCS) is a disease caused by abrupt change of extracorporeal pressure, with varying severity. Symptoms range from mild musculoskeletal pain to severe organ dysfunction and death, especially among patients with chronic underlying disease. Here, we report an unusual case of a 49-year-old man who experienced DCS after a dive to a depth of 38 meters. The patient’s symptoms progressed, starting with mild physical discomfort that progressed to disturbance of consciousness on the second morning. During hospitalization, we identified that in addition to DCS he had also developed diabetic ketoacidosis, septic shock, and rhabdomyolysis. After carefully balancing the benefits and risks, we decided to provide a series of supportive treatment to sustain vital signs, including ventilation support, sugar-reducing therapy, fluid replacement, and anti-infection medications. We then administered delayed hyperbaric oxygen (HBO2) when his condition was stable. Ultimately, the patient recovered without any sequelae. This is the first case report of a diver suffering from DCS followed by diabetic ketoacidosis and septic shock. We have learned that when DCS, along with other critical illness is highly suspected, it is essential to assess the condition comprehensively and focus on the principal contradiction.","PeriodicalId":49396,"journal":{"name":"Undersea and Hyperbaric Medicine","volume":"34 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88958361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dale Parsons, E. Utz, Grant A Kidd, Gina R Virgilio
{"title":"Inner ear decompression sickness after a routine dive and recompression chamber drill: A case report","authors":"Dale Parsons, E. Utz, Grant A Kidd, Gina R Virgilio","doi":"10.22462/01.01.2023.27","DOIUrl":"https://doi.org/10.22462/01.01.2023.27","url":null,"abstract":"Inner ear decompression sickness (IEDCS) is an uncommon diving-related injury affecting the vestibulocochlear system, with symptoms typically including vertigo, tinnitus and hearing loss, either in isolation or in combination. Classically associated with deep, mixed-gas diving, more recent case series have shown that IEDCS is indeed possible after seemingly innocuous recreational dives, and there has been one previous report of IEDCS following routine hyperbaric chamber operations. The presence of right-to-left shunt (RLS), dehydration and increases in intrathoracic pressure have been identified as risk factors for IEDCS, and previous studies have shown a predominance of vestibular rather than cochlear symptoms, with a preference for lateralization to the right side. Most importantly, rapid identification and initiation of recompression treatment are critical to preventing long-term or permanent inner ear deficits. This case of a U.S. Navy (USN) diver with previously unidentified RLS reemphasizes the potential for IEDCS following uncomplicated diving and recompression chamber operations – only the second reported instance of the latter.","PeriodicalId":49396,"journal":{"name":"Undersea and Hyperbaric Medicine","volume":"17 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75887181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Melisa Öçbe, Selin Gamze Sümen, Busra Dilara Altun, A. Dumlu
{"title":"Barodontalgia during hyperbaric oxygen therapy of an 8-year-old male: a case report","authors":"Melisa Öçbe, Selin Gamze Sümen, Busra Dilara Altun, A. Dumlu","doi":"10.22462/01.01.2023.29","DOIUrl":"https://doi.org/10.22462/01.01.2023.29","url":null,"abstract":"Barodontalgia, barometric pressure-induced dental pain, may occur during hyperbaric oxygen therapy due to pressure changes. This case report represents an 8-year-old male patient with barodontalgia. The patient declared a severe toothache during hyperbaric therapy. The diving medicine specialist referred the patient to the dental clinician immediately. Upon clinical examination, the pain was thought to be caused by caries lesions of the deciduous teeth in the left maxillary molar region. Tooth extraction was suggested. After extraction, patient continued hyperbaric oxygen therapy sessions without any pain. Patient was recommended for a session to intraoral and radiographic examination one week after the extraction. In conclusion, caries lesions and faulty restorations should be examined before hyperbaric oxygen therapy sessions. Even though barodontalgia is a rare phenomenon, dental examination is essential to avoid these kinds of pain-related complications. All carious lesions and defective restorations must be treated, if necessary. Removal of faulty restorations, and management of inflammation as part of the treatment is suggested before being exposed to pressure changes.","PeriodicalId":49396,"journal":{"name":"Undersea and Hyperbaric Medicine","volume":"37 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77794300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. D. Spencer, Tyler Connely, J. Cooper, J. Dowdall
{"title":"Chondronecrosis of the cricoid treated with hyperbaric oxygen therapy: A case series","authors":"J. D. Spencer, Tyler Connely, J. Cooper, J. Dowdall","doi":"10.22462/01.01.2023.30","DOIUrl":"https://doi.org/10.22462/01.01.2023.30","url":null,"abstract":"We present two cases of cricoid chondronecrosis treated with hyperbaric oxygen (HBO2) therapy. Both patients presented with biphasic stridor and dyspnea several weeks after an intubation event. Tracheostomy was ultimately performed for airway protection, followed by antibiotic treatment and outpatient HBO2 therapy. Both patients were decannulated within 6 months of presentation and after at least 20 HBO2 therapy sessions. Despite a small sample size, our findings are consistent with data supporting HBO2 therapy’s effects on tissue edema and neovascularization as well as HBO2 potentiation of antibiotic treatment and leukocyte function. We suggest HBO2 therapy may have accelerated airway decannulation by way of infection resolution as well as the revitalization of upper airway tissues, ultimately renewing the structural integrity of the larynx. Physicians should be aware of the potential benefits of HBO2 therapy when presented with this rare but significant clinical challenge.","PeriodicalId":49396,"journal":{"name":"Undersea and Hyperbaric Medicine","volume":"27 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89274306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Koichi Mimura, M. Harada, S. Sumiyoshi, Gyo Toya, M. Takagi, E. Fujita, Akira Takata, S. Tatetsu
{"title":"Long-term eff ects of carbon monoxide poisoning at Miike coal mine: A 33-year follow-up study","authors":"Koichi Mimura, M. Harada, S. Sumiyoshi, Gyo Toya, M. Takagi, E. Fujita, Akira Takata, S. Tatetsu","doi":"10.22462/01.01.2023.40","DOIUrl":"https://doi.org/10.22462/01.01.2023.40","url":null,"abstract":"On November 9, 1963, during the afternoon shift change at the Miike coal mine, eight rail cars filled with coal broke free and fell 360 meters [1]. The impact ignited coal dust in the mine and set off two explosions, killing 20 people immediately and trapping nearly 1,400 other workers up to 450 meters below the surface and 8 kilometers from the mine entrance. The explosion damaged electrical and telephone lines, but the ventilation fan continued to operate and spread carbon monoxide throughout the mine [1].","PeriodicalId":49396,"journal":{"name":"Undersea and Hyperbaric Medicine","volume":"10 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75478832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hayden W. Hess, Z. Schlader, Blair D. Johnson, Riana R. Pryor, D. Hostler
{"title":"Aerobic exercise performance is reduced following prolonged cold-water immersion","authors":"Hayden W. Hess, Z. Schlader, Blair D. Johnson, Riana R. Pryor, D. Hostler","doi":"10.22462/01.01.2023.33","DOIUrl":"https://doi.org/10.22462/01.01.2023.33","url":null,"abstract":"We 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 %; V̇O2max 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±0.3C) either breathing air (FIO2 = 0.21) or O2 (FIO2 = 1.0). During the no-immersion control trial and following immersion in the experimental trials, subjects first completed a 60-minute ruck-march carrying 20% of body mass in a rucksack, immediately followed by an unweighted, self-paced 5-km time trial on a motorized treadmill. Core temperature, heart rate, and rating of perceived exertion were recorded every 1,000 meters during the 5-km time trial. Data are presented mean ± SD. Time trial performance was reduced following immersion in both the 100% O2 trial (32 ± 6 minutes; p=0.01) and air trial (32 ± 5 minutes; p=0.01) compared to the control trial (28 ± 4 minutes). However, there was no difference between the 100% O2 and air trials (p=0.86). Heart rate, core temperature, and rating of perceived exertion increased during the time trial (time effect: p<0.01), but were not different between trials (trial effect: p≥0.33). These findings suggests that prolonged cold-water immersion attenuates self-paced aerobic exercise performance, but does not appear to be further affected by breathing gas type.","PeriodicalId":49396,"journal":{"name":"Undersea and Hyperbaric Medicine","volume":"49 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77618987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Altitude diving on a closed-circuit oxygen rebreather: A case report","authors":"J. Conard","doi":"10.22462/01.01.2023.12","DOIUrl":"https://doi.org/10.22462/01.01.2023.12","url":null,"abstract":"Closed-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. As will be seen in this case, two experienced divers were able to recover from a possible devastating dive. Fortunately, they both returned to their pre-dive baseline health. Dive planning is important, but as in this case, dive execution is paramount. This is a clinical case for an uncommon event that presented to an emergency department.","PeriodicalId":49396,"journal":{"name":"Undersea and Hyperbaric Medicine","volume":"50 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73438664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Arterial gas embolism in a breath-hold diver","authors":"Ryan A Gall, R. Rahimi","doi":"10.22462/01.01.2023.35","DOIUrl":"https://doi.org/10.22462/01.01.2023.35","url":null,"abstract":"An arterial gas embolism (AGE) is a potentially fatal complication of scuba diving that is related to insufficient exhalation during ascent. During breath-hold diving, an arterial gas embolism is unlikely because the volume of gas in the lungs generally cannot exceed the volume at the beginning of the dive. However, if a diver breathes from a gas source at any time during the dive, they are at risk for an AGE or other pulmonary overinflation syndromes (POIS). In this case report, a breath-hold diver suffered a suspected AGE due to rapidly ascending without exhalation following breathing from an air pocket at a depth of approximately 40 feet.","PeriodicalId":49396,"journal":{"name":"Undersea and Hyperbaric Medicine","volume":"25 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73477762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L. Krimus, H. Syed, Anton Marinov, Hance Clarke, R. Katznelson
{"title":"Hyperbaric oxygen therapy for treatment of COVID-19-related parosmia: a case report","authors":"L. Krimus, H. Syed, Anton Marinov, Hance Clarke, R. Katznelson","doi":"10.22462/01.01.2023.25","DOIUrl":"https://doi.org/10.22462/01.01.2023.25","url":null,"abstract":"Parosmia 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.","PeriodicalId":49396,"journal":{"name":"Undersea and Hyperbaric Medicine","volume":"2 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85521490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Jin","authors":"Yintao Chang, Qianyu Han, Xiaochen Bao, Mingdong Wang, Yuxiang Jin, Siang Zhang, Xuewei Zhao, Yiqun Fang, Lei Xue","doi":"10.22462/01.00.2023.5","DOIUrl":"https://doi.org/10.22462/01.00.2023.5","url":null,"abstract":"Background: To investigate therapeutic effects of hydrogen-rich saline (HRS) combined with hyperbaric oxygen (HBO) in an experimental rat model of Acute Lung Injury (ALI). Methods: 40 Male Sprague-Dawlay rats were randomly divided into sham, LPS, LPS + HBO, LPS + HRS and LPS + HBO + HRS groups. ALI was induced by an intratracheal injection of LPS, then the rats were respectively given single agent treatment of HBO or HRS or HBO + HRS treatment. The treatments were continued for 3 days in such experimental rat model of ALI. At the end of experiment, the lung pathological , inflammatory factors , and cell apoptosis in the pulmonary tissue were detected by Tunel method and cell apoptosis rate was calculated accordingly. Results: In the groups treated with HBO + HRS, pulmonary pathological data, wet-dry weight ratio and inflammatory factors of pulmonary tissues and aveolar lavage fluid were signficantly superiror to those of the sham group(P<0.05). Cell apoptosis detection revealed that no matter single agent treatment of HRS or HBO, or combination treatment , could all alleviate cell apoptosis, and HRS combined with HBO treatment was obviously superior to single treatment(P<0.05). Conclusions: HRS or HBO single treatment could decrease inflammatory cytokines release in lung tissue, reduce accumulation of oxidative products and alleviate apoptosis of pulmoanry cells, then lead to positive therapeutic effects on ALI induced by LPS. Furthermore, HBO combined with HRS treatment presented a synergy effect on cell apoptosis decrease, and a declined trend in inflammatory cytokines release and related inflammatory products generation, compared with single treatment.","PeriodicalId":49396,"journal":{"name":"Undersea and Hyperbaric Medicine","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135535034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}