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Hyperbaric Chamber

Qian Xu, Shuang-Bo Fan, Yu-Lin Wan, Xian-Lan Liu, Liang Wang
AIMS: Although Hyperbaric oxygen therapy (HyperBOT) attract our attention successfully these days, it is still full of controversy on the treatment of acute stroke. The aim of this study is to assess the potential long-term neurological consequences and safety of using HyperBOT on intracerebral hemorrhage (ICH) in the diabetics. METHODS: In this prospective, randomized controlled trial, 79 diabetes patients suffering from acute ICH were randomized to treat for 60 minutes in a monoplace hyperbaric chamber pressurized with pure oxygen to 2...
February 3, 2018: Diabetes Research and Clinical Practice
Krzysztof Konrad Lewandowski, Witold Cieślikiewicz, Marta Ewelina Kobusińska, Elżbieta Niemirycz
Study was undertaken to determine the effect of hydrostatic pressure on the sorption of pentachlorophenol (PCP). The experiment was conducted at atmospheric pressure (1000 hPa) and at increased pressure (6000 hPa) simulating conditions at the water depth of 50 m. The sorption of PCP was examined in an artificial environment (microcosm) consisting of the marine water and the bottom sediments from a Polish harbor and the southern Baltic Sea. The first part of the experiment comprised the determination of PCP sorption parameters in the microcosms and parameters of the sediments (organic matter content, conductivity) and of the overlying water (pH, ion concentration) at 1000 hPa...
February 2, 2018: Environmental Science and Pollution Research International
David H Jang, Utsha G Khatri, Brenna P Shortal, Matthew Kelly, Kevin Hardy, David S Lambert, David M Eckmann
BACKGROUND: Carbon monoxide (CO) poisoning is the leading cause of poisoning mortality and morbidity in the USA. Carboxyhemoglobin (COHb) levels are not predictive of severity or prognosis. At this time, the measurement of mitochondrial respiration may serve as a biomarker in CO poisoning. The primary objective of this study was to assess changes in mitochondrial function consisting of respiration and generation of reactive oxygen species (ROS) in peripheral blood mononuclear cells (PBMCs) obtained from patients with CO poisoning...
January 30, 2018: Intensive Care Medicine Experimental
Takuya Oyaizu, Mitsuhiro Enomoto, Naoki Yamamoto, Kunikazu Tsuji, Masaki Horie, Takeshi Muneta, Ichiro Sekiya, Atsushi Okawa, Kazuyoshi Yagishita
Hyperbaric oxygen treatment (HBO) promotes rapid recovery from soft tissue injuries. However, the healing mechanism is unclear. Here we assessed the effects of HBO on contused calf muscles in a rat skeletal muscle injury model. An experimental HBO chamber was developed and rats were treated with 100% oxygen, 2.5 atmospheres absolute for 2 h/day after injury. HBO reduced early lower limb volume and muscle wet weight in contused muscles, and promoted muscle isometric strength 7 days after injury. HBO suppressed the elevation of circulating macrophages in the acute phase and then accelerated macrophage invasion into the contused muscle...
January 22, 2018: Scientific Reports
Inés Fernández Canedo, Laura Padilla España, José Francisco Millán Cayetano, Juan Bosco Repiso Jiménez, Manuel Pérez Delgado, Magdalena de Troya Martín
Radiotherapy is a widely recognised treatment for non-melanoma skin cancer. We report three cases of radiation-induced skin ulcers in which hyperbaric oxygen therapy was administered in 90-min sessions, 5 days a week at 2.4 absolute atmospheres in a multiplace hyperbaric chamber. Hyperbaric oxygen therapy is an outpatient treatment that does not displace other classical treatments and may be used as an adjunct therapy.
December 29, 2017: Australasian Journal of Dermatology
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November 2017: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
Fan-Chun Meng, Chih-Hao Shen, Di Wu, Chi-Ming Chu, Cheng-Ping Shih, Hung-Che Lin, Chung-Kan Peng, Shun Cheng Chang, Kun-Lun Huang
PURPOSE: One of the most common complications of hyperbaric oxygen (HBO₂) therapy is middle ear barotrauma (MEB), occasionally causing otalgia. The objective of this study was to evaluate the effect of dried salted plum consumption on MEB and otalgia associated with HBO₂ therapy. MATERIALS AND METHODS: Patients undergoing the first chamber session of HBO₂ therapy were included in the present prospective randomized controlled trial. The Valsalva maneuver was administered to all patients before HBO₂...
November 2017: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
T Wunderlich, N Frey, W Kähler, M Lutz, P Radermacher, S Klapa, I Koch, F Tillmans, J Witte, A Koch
OBJECTIVE: Hyperoxia is known to influence cardiovascular and endothelial function, but it is unknown if there are differences between younger and older persons. The aim of this study was to monitor changes in myocardial diastolic function and flow-mediated dilatation (FMD) in younger and elderly volunteers, before and after exposure to relevant hyperbaric hyperoxia. METHODS: 51 male patients were separated into two groups for this study. Volunteers in Group 1 (n=28, mean age 26 ±6, "juniors") and Group 2 (n=23, mean age 53 ±9, "seniors") received standard HBO₂ protocol (240kPa oxygen)...
November 2017: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
Teddy S Youn, Patrick Lavin, Morgan Patrylo, Joseph Schindler, Howard Kirshner, David M Greer, Matthew Schrag
BACKGROUND: Central retinal artery occlusion (CRAO) is an ophthalmological emergency, the retinal analog of a stroke. To date there is no consensus or national guidelines on how this disorder should be managed. As academic neurologists and ophthalmologists treat CRAO frequently, we set out to understand how these clinicians approach patients with CRAO with a national survey. METHODS: We identified university-associated teaching hospitals offering vascular neurology, neuro-ophthalmology and/or retina fellowships in the US and asked the directors of the programs to respond to questions in an open response format to profile the acute management of CRAO at their institution...
February 2018: Journal of Neurology
William A Cronin, Aaron A Hall, Charles R Auker, Richard T Mahon
INTRODUCTION: Perfluorocarbons (PFC) are fluorinated hydrocarbons that dissolve gases to a much greater degree than plasma and hold promise in treating decompression sickness (DCS). The efficacy of PFC in a mixed gender model of DCS and safety in recompression therapy has not been previously explored. METHODS: Swine (25 kg; N = 104; 51 male and 53 female) were randomized into normal saline solution (NSS) or PFC emulsion treatment groups and subjected to compression on air in a hyperbaric chamber at 200 fsw for 31 min...
January 1, 2018: Aerospace Medicine and Human Performance
Qin Li, Xiaoyu Ding, Weikang Bi, Jinglin Wang, Yong Zou
OBJECTIVE: To investigate the effects of N-butylphthalide (NBP) on cognitive function in acute severe carbon monoxide (CO) poisoning rats and its mechanism. METHODS: 120 health Sprague-Dawley (SD) rats were randomly divided into three groups (n = 40): normal control group (NC group), CO poisoning group (CO group) and NBP treatment group (NBP group). The acute severe CO poisoning model was established in a hyperbaric oxygen chamber by intoxicated with 1 000 ×10-6 CO for 40 minutes, followed with 3 000 ×10-6 CO for another 20 minutes, and then received hyperbaric oxygen therapy 1...
December 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
Long Qing, Hong-Jie Yi, Ye-Wei Wang, Quan Zhou, Dinesh K Ariyadewa, Wei-Gang Xu
Decompression sickness (DCS) occurs when ambient pressure is severely reduced during diving and aviation. Hyperbaric oxygen (HBO) pretreatment has been shown to exert beneficial effects on DCS in rats via heat-shock proteins (HSPs). We hypothesized that HBO pretreatment will also reduce DCS via HSPs in swine models. In the first part of our investigation, six swine were subjected to a session of HBO treatment. HSP32, 60, 70 and 90 were detected, before and at 6, 12, 18, 24 and 30 h following exposure in lymphocytes...
March 7, 2018: Journal of Experimental Biology
Lu Shi, Yan-Meng Zhang, Katsuura Tetsuo, Zhong-Yuan Shi, Yi-Qun Fang, Petar J Denoble, Yang-Yang Li
BACKGROUND: Experience with commercial heliox diving at high altitude is limited. The purpose of this study was to evaluate the effects of acute high-altitude exposure on fitness to dive and the safety of decompression after heliox diving while using U.S. Navy heliox decompression tables with Cross correction. METHOD: Four professional male divers were consecutively decompressed in a hypo- and hyperbaric chamber to altitudes of 3000 m (9842.5 ft), 4000 m (13,123...
December 1, 2017: Aerospace Medicine and Human Performance
Viktoria Heide-Marie Weixler, Ameli Elisabeth Yates, Markus Puchinger, Birgit Zirngast, Prisca Pondorfer, Beatrice Ratzenhofer-Komenda, Andrea Amegah-Sakotnik, Freyja-Maria Smolle-Juettner, Otto Dapunt
BACKGROUND: Hyperbaric oxygenation (HBO₂) involves breathing 100% oxygen under elevated ambient pressure in a hyperbaric chamber, thereby dissolving oxygen in the plasma. This results in an increase of arterial partial pressure of oxygen (pO₂). Though well established in experimental studies, HBO₂ treatment for ischemic stroke is still under discussion. METHODS: From 2002-2014 HBO₂ (2.2 bar, 90 minutes one/day; average number per patient: 4.7) was applied in 49 consecutive patients (32 males, 17 females, mean age: 68...
2017: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
Stéphanie F Bernatchez, Joseph Tucker, Gwenael Chiffoleau
Objective: Use test methods to assess the oxygen compatibility of various wound care products. Approach: There are currently no standard test methods specifically for evaluating the oxygen compatibility and safety of materials under hyperbaric oxygen (HBO) conditions. However, tests such as the oxygen index (OI), oxygen exposure (OE), and autogenous ignition temperature (AIT) can provide useful information. Results: The OI test measures the minimum oxygen concentration that will support candle-like burning, and it was used to test 44 materials...
November 1, 2017: Advances in Wound Care
Muhammad Irfan Ilmi, Faisal Yunus, Muhammad Guritno, Triya Damayanti, Erlang Samoedro, Ahmad Muslim Nazaruddin, Fariz Nurwidya
INTRODUCTION: Diving is an activity performed in more than 1 atmosphere absolute pressure (ATA) either underwater or in a hyperbaric chamber. We aimed to compare lung function values of trained divers in 1.5 ATA hyperbaric chambers after inhaling 100% oxygen and regular air. METHODS: This experimental study with crossover design involved 18 trained divers in 1.5 ATA hyperbaric room, which is equivalents to a 5-meter depth. The eighteen subjects as the supplementation group, using oro-nasal mask, inhaled 100% oxygen for 30 minutes followed by a one-day washout period...
October 30, 2017: Advances in Respiratory Medicine
Kiang Yien Cheung, Abigale Berry, Dandan Li, Omar S Aljitawi
BACKGROUND AIMS: Umbilical cord blood (UCB) provides an alternative source for hematopoietic stem/progenitor cells (HSPCs) in the treatment of hematological malignancies. However, clinical usage is limited due to the low quantity of HSPCs in each unit of cord blood and defects in bone marrow homing. Hyperbaric oxygen (HBO) is among the more recently explored methods used to improve UCB homing and engraftment. HBO works by lowering the host erythropoietin before UCB infusion to facilitate UCB HSPC homing, because such UCB cells are not directly exposed to HBO...
October 13, 2017: Cytotherapy
Dor Vadas, Leonid Kalichman, Amir Hadanny, Shai Efrati
Background: The Brain uses 20% of the total oxygen supply consumed by the entire body. Even though, <10% of the brain is active at any given time, it utilizes almost all the oxygen delivered. In order to perform complex tasks or more than one task (multitasking), the oxygen supply is shifted from one brain region to another, via blood perfusion modulation. The aim of the present study was to evaluate whether a hyperbaric oxygen (HBO) environment, with increased oxygen supply to the brain, will enhance the performance of complex and/or multiple activities...
2017: Frontiers in Integrative Neuroscience
Chen-Yu Chen, Re-Wen Wu, Mei-Chi Hsu, Ching-Jung Hsieh, Man-Chun Chou
PURPOSE: The purpose of this study was to compare the effect of standard wound care with adjunctive hyperbaric oxygen therapy (HBOT) to standard wound care alone on wound healing, markers of inflammation, glycemic control, amputation rate, survival rate of tissue, and health-related quality of life in patients with diabetic foot ulcers (DFUs). DESIGN: Prospective, randomized, open-label, controlled study. SUBJECTS AND SETTING: The sample comprised 38 patients with nonhealing DFUs who were deemed poor candidates for vascular surgery...
November 2017: Journal of Wound, Ostomy, and Continence Nursing
Juan M Galvis, David R Nunley, Teoh Zheyi, Lu Anne V Dinglasan
BACKGROUND: Systemic arterial air embolism following a percutaneous transthoracic lung biopsy is a rare but known complication, with current literature reporting an incidence of 0.01-0.45%. A prompt diagnosis of arterial air embolism is important as complications resulting from migration of air to the systemic circulation with correspondent complications. CASE REPORT: A 60-year-old female who presented for an elective percutaneous lung biopsy of an incidentally found pulmonary nodule...
2017: Respiratory Medicine Case Reports
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