Undersea and Hyperbaric Medicine最新文献_第9页

A Scoping Review of the Equivalent Air Depth Concept. 等效空气深度概念的范围检讨。

IF 0.7 4区医学

Undersea and Hyperbaric Medicine Pub Date : 2025-03-01

Jan Risberg, Kåre Segadal, Mikael Gennser

{"title":"A Scoping Review of the Equivalent Air Depth Concept.","authors":"Jan Risberg, Kåre Segadal, Mikael Gennser","doi":"","DOIUrl":"","url":null,"abstract":"Surface-oriented diving with nitrogen-oxygen breathing gases (nitrox) other than air will commonly be planned according to the Equivalent Air Depth (EAD) principle. EAD is the depth at which a diver breathing air will inhale the same pN₂ as the nitrox-breathing diver. Using conventional air decompression tables based on the EAD depth will allow longer bottom times or shorter decompression times compared to air breathing at the same water depth. This scoping review aimed to investigate the validity of the EAD principle. A literature review identified 13 eligible studies that reported DCS incidence or vascular bubbles following air and nitrox exposures in humans and experimental animals. Four experimental (N=1,597 mandives) and two epidemiological (N=249,109 mandives) studies on humans did not disclose a higher DCS incidence or bubble scores following nitrox dives compared to air dives of similar EAD. Seven experimental animal studies consistently showed that a high pO₂ (>2 atm) increased DCS susceptibility in goats and rats. This can likely be explained by the reduction of the \"oxygen window\" due to the high tissue and venous pO₂. There is insufficient data from animal studies to conclude whether this can be reproduced within a pO₂ range applicable for human operational diving (<1.6 atm). There is presently no reason to modify the EAD principle for manned diving. Still, we would advise improving the monitoring of operational nitrox dives to confirm that nitrox dives have a DCS incidence similar to that of EAD- and bottom time-matched air dives.","PeriodicalId":49396,"journal":{"name":"Undersea and Hyperbaric Medicine","volume":"52 3","pages":"239-259"},"PeriodicalIF":0.7,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145507975","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}

引用次数: 0

The Effect of Hyperbaric Oxygen on Compromised Grafts and Flaps. 高压氧对受损移植物和皮瓣的影响。

IF 0.7 4区医学

Undersea and Hyperbaric Medicine Pub Date : 2025-03-01

Evan J Childers, Richard C Baynosa

{"title":"The Effect of Hyperbaric Oxygen on Compromised Grafts and Flaps.","authors":"Evan J Childers, Richard C Baynosa","doi":"","DOIUrl":"","url":null,"abstract":"The use of grafts and flaps serves as an integral tool in the armamentarium of the reconstructive surgeon. Proper planning and surgical judgment are critical in the ultimate success of these procedures. However, there are situations when grafts and/or flaps can become compromised and require urgent intervention for salvage. These instances can include irradiated or otherwise hypoxic wound beds, excessively large harvested grafts, random flap ischemia, venous or arterial insufficiency, and ischemia- reperfusion injury. Alternatively, compromised grafts and flaps can be inadvertently created secondary to trauma. It is in these types of cases that HBO₂ therapy can serve as a useful adjunct in the salvage of compromised flaps and grafts. This review outlines the extensive basic science and clinical evidence available in support of the use of HBO₂ therapy for compromised grafts and flaps. The literature demonstrates the benefit of adjunctive HBO₂ therapy for multiple types of grafts and flaps with various etiologies of compromise. HBO₂ therapy can enhance graft and flap survival by several methods including decreasing the hypoxic insult, enhancing fibroblast function and collagen synthesis, stimulating angiogenesis, and inhibiting ischemia-reperfusion injury. The expedient initiation of hyperbaric oxygen therapy as soon as flap or graft compromise is identified maximizes tissue viability and ultimately graft/flap salvage.","PeriodicalId":49396,"journal":{"name":"Undersea and Hyperbaric Medicine","volume":"52 3","pages":"381-396"},"PeriodicalIF":0.7,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145507100","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}

引用次数: 0

The Experience of Hyperbaric Oxygen Therapy in Earthquake-Related Crush Injuries: Could Be Beneficial Even with Delay in Initiation. 高压氧治疗地震相关挤压伤的经验：即使延迟开始也可能有益。

IF 0.7 4区医学

Undersea and Hyperbaric Medicine Pub Date : 2025-03-01

Ahmet Uğur Avcı, Selcen Yüsra Abaylı

{"title":"The Experience of Hyperbaric Oxygen Therapy in Earthquake-Related Crush Injuries: Could Be Beneficial Even with Delay in Initiation.","authors":"Ahmet Uğur Avcı, Selcen Yüsra Abaylı","doi":"","DOIUrl":"","url":null,"abstract":"Background: Two significant earthquakes struck southeastern Turkey on February 6. The study aimed to evaluate the effect of HBO₂ on patients with crush injuries who received therapy at the Akyurt Hyperbaric Oxygen Therapy Center following the earthquakes.Methods: Thirty-three crush injury patients were included in the study. The Gustilo crush injury grading system, the Mangled Extremity Severity Score (MESS), and the five assessment host function scores were used to evaluate patients. Additionally, the duration from the time under the rubble until HBO₂ started, as well as the presence of fasciotomy/amputation before or after HBO₂, was recorded.Results: The mean duration from rescue to the initiation of HBO₂ was 195 hours. Of the patients, 63.6% were severely injured according to the MESS (≥7). The Gustilo crush injury classification distribution was 30.3% IIIC, 42.4% IIIB, and 27.3% IIIA. Before HBO₂, 87.9% of the patients had fasciotomies. Fasciotomy lines were closed (without requiring another fasciotomy or additional complications) during or immediately after HBO₂ in 72.4% of 29 patients. Following HBO₂, 78.8% of the patients did not require amputation, while 21.2% had amputations. All patients who underwent amputation after HBO₂ were in the Gustilo IIIC group and scored MESS ≥ 7. Furthermore, 71.4% of patients who had an amputation scored MESS ≥ 10.Conclusions: Hyperbaric oxygen therapy is beneficial in limb salvage and reduces complications in crush injuries and should be included in treatment plans. In countries with active tectonic activity, appropriate planning should be implemented to ensure patients' access to HBO₂, and the number of HBO₂ centers should be increased.","PeriodicalId":49396,"journal":{"name":"Undersea and Hyperbaric Medicine","volume":"52 3","pages":"261-270"},"PeriodicalIF":0.7,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145507277","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}

引用次数: 0

Hyperbaric Oxygen Treatment for Long-COVID syndrome: A Systematic Review of Current Evidence on Cognitive Decline. 高压氧治疗长冠综合征：对认知能力下降的现有证据的系统回顾。

IF 0.7 4区医学

Undersea and Hyperbaric Medicine Pub Date : 2025-03-01

Fernanda Valeriano Zamora, Ana Clara Felix de Farias Santos, Andres Villca Zamora, Lorhayne Kerley Capuchinho Scalioni Galvao, Nicole Dos Santos Pimenta, João Pedro Costa Esteves Almuinha Salles, Vitoria Batista Carneiro, Carlos Ernesto Ferreira Starling

{"title":"Hyperbaric Oxygen Treatment for Long-COVID syndrome: A Systematic Review of Current Evidence on Cognitive Decline.","authors":"Fernanda Valeriano Zamora, Ana Clara Felix de Farias Santos, Andres Villca Zamora, Lorhayne Kerley Capuchinho Scalioni Galvao, Nicole Dos Santos Pimenta, João Pedro Costa Esteves Almuinha Salles, Vitoria Batista Carneiro, Carlos Ernesto Ferreira Starling","doi":"","DOIUrl":"","url":null,"abstract":"Introduction: There is no established specific treatment for long-COVID syndrome (LCS), yet hyperbaric oxygen (HBO₂) treatment has been studied as a potential option. Therefore, we conducted a systematic review to evaluate the benefits of HBO₂ treatment in LCS patients.Methods: We systematically searched PubMed, Embase, and Cochrane databases until April 2024. Risk of bias and GRADE quality assessment were evaluated. This study was registered in the International Prospective Register of Systematic Reviews (PROSPERO) with ID CRD42024530421.Results: Seven studies from seven countries, divided into RCTs and observational studies, included 199 participants. HBO₂ treatment protocols included breathing 100% oxygen at 2.0 ATA until 2.5 ATA; the number of sessions varied from ten to 60 depending on the patient's comorbidities and symptoms. Memory, executive function, attention, fatigue, and pain level improved with HBO2 treatment. The intervention had minimal side effects, and none were serious.Conclusion: HBO₂ treatment might be a potential option and safe treatment in LCS patients. However, further research should be focused on evaluating its efficacy in a larger number of patients through randomized studies.","PeriodicalId":49396,"journal":{"name":"Undersea and Hyperbaric Medicine","volume":"52 3","pages":"327-335"},"PeriodicalIF":0.7,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145508006","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}

引用次数: 0

Arterial Gas Embolism after breath-hold diving. An interesting case report in Greece. 憋气潜水后动脉气体栓塞。一则有趣的希腊病例报道。

IF 0.7 4区医学

Undersea and Hyperbaric Medicine Pub Date : 2025-03-01

Konstantinos Athanasiou, George Sotiropoulos, Vasileios N Kalentzos

引用次数: 0

Arterial Insufficiencies: Central Retinal Artery Occlusion. 动脉功能不全：视网膜中央动脉闭塞。

IF 0.7 4区医学

Undersea and Hyperbaric Medicine Pub Date : 2025-02-01

Heather Murphy-Lavoie, Frank Butler, Catherine Hagan

引用次数: 0

Arterial Gas Embolism After CT-Guided Lung Biopsy. ct引导下肺活检后动脉气体栓塞。

IF 0.7 4区医学

Undersea and Hyperbaric Medicine Pub Date : 2025-02-01

William Zhu, Siamak Moayedi, Kinjal Sethuraman

引用次数: 0

Effect of hyperbaric air exposure with prolonged oxygen inhalation during decompression on the cardiovascular function in divers. 减压过程中暴露于高压空气并长时间吸氧对潜水员心血管功能的影响。

IF 0.7 4区医学

Undersea and Hyperbaric Medicine Pub Date : 2025-02-01

Liu Wenwu, Zhang Tingting, Yin Lijun, Xu Jiajun, Yu Xuhua, Wang Shifeng

{"title":"Effect of hyperbaric air exposure with prolonged oxygen inhalation during decompression on the cardiovascular function in divers.","authors":"Liu Wenwu, Zhang Tingting, Yin Lijun, Xu Jiajun, Yu Xuhua, Wang Shifeng","doi":"","DOIUrl":"","url":null,"abstract":"Objective: This study aimed to evaluate the effect of prolonged oxygen inhalation during decompression on the cardiovascular function in divers with hyperbaric air exposure.Methods: Eight divers were pressurized to 400 kPa and then depressurized 30 minutes later. During the decompression, the time of oxygen breathing was prolonged at different depths. The cardiac, carotid, and brachial arterial functions were evaluated by ultrasonography immediately before and after exposure and then compared.Results: After hyperbaric exposure, diastolic blood pressure increased significantly, heart rate reduced markedly, but systolic blood pressure tended to reduce. The peak systolic velocity and end diastolic velocity of the common carotid artery reduced markedly, but its resistance index slightly increased, and the diameter of the brachial artery tended to increase. In addition, the end-diastolic volume, cardiac output, E wave, and A wave of the heart reduced markedly, but the flow velocity of the pulmonary artery tended to reduce.Conclusion: Hyperbaric air exposure at 400 kPa with prolonged oxygen inhalation during decompression mildly affects divers' cardiovascular function.","PeriodicalId":49396,"journal":{"name":"Undersea and Hyperbaric Medicine","volume":"52 2","pages":"163-168"},"PeriodicalIF":0.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144862599","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}

引用次数: 0

Predictive modeling of the performance of the Zoll Z Vent® under hyperbaric conditions. 高压条件下Zoll zvent®性能的预测建模。

IF 0.7 4区医学

Undersea and Hyperbaric Medicine Pub Date : 2025-02-01

Abigail Winn, Mark Billingsley, Marc Pullis, Daniel Popa, Christopher Logue

{"title":"Predictive modeling of the performance of the Zoll Z Vent® under hyperbaric conditions.","authors":"Abigail Winn, Mark Billingsley, Marc Pullis, Daniel Popa, Christopher Logue","doi":"","DOIUrl":"","url":null,"abstract":"Prior work demonstrated challenges with ventilators in the hyperbaric environment; few ventilators are fully equipped to address these concerns. We hypothesized the Zoll Z-vent® would deliver set tidal volumes incorrectly in volume control mode, but we could correct it using an algorithm. We used the Zoll Z-vent® in assist control mode in a Class A multiplace chamber and the Michigan test lung system. We identified the set tidal volumes on the ventilator that were necessary to achieve target tidal volumes at various depths. We graphed set tidal volume as a function of depth and performed linear regression modeling. From the regressions, we graphed the slope of each versus the target tidal volume and performed a second set of regressions. We generated an equation from our data to predict set tidal volumes. Set tidal volumes necessary to deliver target tidal volumes were directly proportional to depth in a linear manner. The slope of the regressions as a function of target tidal volume was also linearly proportional. The slope of the second set of regressions generated an equation that is used to predict set tidal volume for a given target tidal volume, PEEP, and gas. The Z-vent® can safely deliver mechanical ventilation under hyperbaric conditions with correction using our model. We use a spreadsheet to calculate set tidal volume for any given depth in clinical practice. We have internally validated this model on over 100 patients with multiple quality control measures in place.","PeriodicalId":49396,"journal":{"name":"Undersea and Hyperbaric Medicine","volume":"52 2","pages":"65-72"},"PeriodicalIF":0.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144862604","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}

引用次数: 0

Efficacy of hyperbaric oxygen salvage therapy for sudden sensorineural hearing loss after ineffective primary treatment in the Slovak Republic. 斯洛伐克共和国原发性治疗无效后突发性感音神经性听力损失高压氧补救性治疗的疗效。

IF 0.7 4区医学

Undersea and Hyperbaric Medicine Pub Date : 2025-02-01

Zdenka Krajčovičová, Rastislav Zigo, Vladimír Meluš, Eva Králová

{"title":"Efficacy of hyperbaric oxygen salvage therapy for sudden sensorineural hearing loss after ineffective primary treatment in the Slovak Republic.","authors":"Zdenka Krajčovičová, Rastislav Zigo, Vladimír Meluš, Eva Králová","doi":"","DOIUrl":"","url":null,"abstract":"We evaluated the efficacy of hyperbaric oxygen (HBO₂) therapy used to salvage sudden sensorineural hearing loss (SSNHL) at a short distance from ineffective primary treatment. We examined the data on 70 patients who suffered from SSNHL. The treatment was administered from 1 to 3 months after the onset of the hearing loss, i.e., after ineffective primary corticosteroid therapy. The monitored group was divided into three subgroups according to the degree of hearing impairment. Treatment success was assessed by using pre- and post-treatment audiograms. A statistically significant improvement in auditory threshold in all three frequency bands was observed in patients with severe hearing impairment of more than 60 dB, with mean auditory gains of 14.5 dB in low frequencies, 11.2 dB in middle (spoken speech) frequencies, and 13.2 dB in high frequencies. In this subgroup, 54.17 % of patients with severe hearing impairment experienced an improvement in hearing gain by 5 dB or more, 33.33 % by > 10 dB, and 25.00 % by > 20 dB. In patients with moderate and slight hearing impairments, the tendency to improve the hearing gain was not statistically significant. Based on our findings, we conclude that salvage HBO₂ treatment in patients with SSNHL is apparently most efficacious for individuals with severe hearing impairment. This finding is valuable for effective resource management in healthcare and public health.","PeriodicalId":49396,"journal":{"name":"Undersea and Hyperbaric Medicine","volume":"52 2","pages":"109-115"},"PeriodicalIF":0.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144862600","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}

引用次数: 0