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Hyperbaric Chamber

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https://www.readbyqxmd.com/read/28690173/immediate-and-delayed-hyperbaric-oxygen-therapy-as-a-neuroprotective-treatment-for-traumatic-brain-injury-in-mice
#1
Renana Baratz-Goldstein, Shlomi Toussia-Cohen, Aviya Elpaz, Vardit Rubovitch, Chaim G Pick
BACKGROUND: Traumatic brain injury is the most common cause of death or chronic disability among people under-35-years-old. There is no effective pharmacological treatment currently existing for TBI. Hyperbaric oxygen therapy (HBOT) is defined as the inhalation of pure oxygen in a hyperbaric chamber that is pressurized higher than 1atm. HBOT offers physiological and mechanical effects by inducing a state of increased pressure and hyperoxia. HBOT has been proposed as an effective treatment for moderate traumatic brain injury (mTBI), yet the exact therapeutic window and mechanism that underlies this effect is not completely understood...
July 8, 2017: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/28676021/medical-management-and-risk-reduction-of-the-cardiovascular-effects-of-underwater-diving
#2
Thomas F Whayne
Undersea diving is a sport and commercial industry. Knowledge of potential problems began with Caisson disease or "the bends", first identified with compressed air in the construction of tunnels under rivers in the 19th century. Subsequently, there was the commercially used old-fashioned diving helmet attached to a suit, with compressed air pumped down from the surface. Breathhold diving, with no supplementary source of air or other breathing mixture, is also a sport as well as a commercial fishing tool in some parts of the world...
June 20, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/28615394/hyperbaric-oxygen-therapy-for-children-with-autism-spectrum-disorder
#3
Teeranai Sakulchit, Chris Ladish, Ran D Goldman
Question As autism spectrum disorder (ASD) is a multifactorial condition, with genetic and environmental risk factors contributing to children's unique presentation and symptom severity, a range of treatments have been suggested. Parents of children with ASD in my clinic are asking me about alternative therapies to improve their children's condition. One of those therapies is hyperbaric oxygen therapy (HBOT); commercial advertisement in the past has suggested good results with this approach. Should I recommend the use of HBOT for children with ASD? Answer Hyperbaric oxygen therapy provides a higher concentration of oxygen delivered in a chamber or tube containing higher than sea level atmospheric pressure...
June 2017: Canadian Family Physician Médecin de Famille Canadien
https://www.readbyqxmd.com/read/28607332/massive-ischemic-stroke-due-to-pulmonary-barotrauma-and-cerebral-artery-air-embolism-during-commercial-air-travel
#4
Sara Farshchi Zarabi, Matteo Parotto, Rita Katznelson, James Downar
BACKGROUND Air embolism into the systemic arterial circulation secondary to pulmonary barotrauma has rarely been reported. Herein, we report the clinical course of an extremely rare presentation of cerebral air embolism likely due to ruptured pulmonary bullae during commercial air travel. CASE REPORT A 65-year-old man suddenly became unconscious during an airplane descent. Upon landing, he was immediately transferred to the nearest emergency department where he was intubated for airway protection. His head CT angiogram showed multiple air pockets in the right parietal lobe suspicious for multiple air emboli...
June 13, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28604343/breathing-100-oxygen-during-water-immersion-improves-postimmersion-cardiovascular-responses-to-orthostatic-stress
#5
John P Florian, Ki H Chon, Luca Faes, Barbara E Shykoff
Physiological compensation to postural stress is weakened after long-duration water immersion (WI), thus predisposing individuals to orthostatic intolerance. This study was conducted to compare hemodynamic responses to postural stress following exposure to WI alone (Air WI), hyperbaric oxygen alone in a hyperbaric chamber (O2 HC), and WI combined with hyperbaric oxygen (O2 WI), all at a depth of 1.35 ATA, and to determine whether hyperbaric oxygen is protective of orthostatic tolerance. Thirty-two healthy men underwent up to 15 min of 70° head-up tilt (HUT) testing before and after a single 6-h resting exposure to Air WI (N = 10), O2 HC (N = 12), or O2 WI (N = 10)...
December 2016: Physiological Reports
https://www.readbyqxmd.com/read/28518008/latent-presentation-of-decompression-sickness-after-altitude-chamber-training-in-an-active-duty-flier
#6
James Gentry, Juan Rango, Jianzhong Zhang, Shane Biedermann
BACKGROUND: Decompression sickness (DCS) is a potential danger and risk for both divers and aircrew alike. DCS is also a potential side effect of altitude (hypobaric) chamber training as well and can present long after training occurs. Literature review shows that altitude chamber induced DCS has approximately a 0.25% incidence. CASE REPORT: A 32-yr-old, active duty military member developed symptoms of DCS 3 h after his hypobaric chamber training. Unfortunately, he did not seek treatment for DCS until 48 h after the exposure...
April 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28501324/using-a-new-plateau-hyperbaric-chamber-to-alleviate-high-altitude-hypoxia-rabbit-and-human-studies
#7
Liang Sun, Meng-Jiang Ding, Tian-Cai Cai, Hao-Jun Fan, Hong-Mei Gao, Jian-Peng Zhang
OBJECTIVES: To validate the effects of the new plateau hyperbaric chamber on alleviating high altitude hypoxia on Mount Kun Lun. METHODS: A prospective, controlled study of rabbits and adult volunteers was conducted at altitudes of 355, 2880 and 4532m. We obtained arterial blood samples from rabbits and volunteers before and after hyperbaric treatment. The respiratory rate, heart rate, and blood pressure (BP) of adult volunteers were monitored during hyperbaric treatment...
April 19, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28489460/a-preliminary-study-in-the-alterations-of-mitochondrial-respiration-in-patients-with-carbon-monoxide-poisoning-measured-in-blood-cells
#8
David H Jang, Matthew Kelly, Kevin Hardy, David S Lambert, Frances S Shofer, David M Eckmann
OBJECTIVES: Carbon monoxide (CO) is a colorless and odorless gas responsible for poisoning mortality and morbidity in the United States. At this time, there is no reliable method to predict the severity of poisoning or clinical prognosis following CO exposure. Whole blood cells, such as peripheral blood mononuclear cells (PBMCs) and platelets, have been explored for their potential use to act as sensitive biomarkers for mitochondrial dysfunction which may have a role in CO poisoning. DESIGN: The objective of this study was to measure mitochondrial respiration using intact cells obtained from patients exposed to CO as a potential biomarker for mitochondrial inhibition with results that can be obtained in a time frame useful for guiding clinical care...
July 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28489213/effects-of-heparin-and-hyperbaric-oxygenation-on-necrosis-reduction-in-an-animal-model-for-degloving-injuries
#9
Douglas Neumar Menon, Letícia Teixeira, Natalha Bristot Paurosi, Marcio Eduardo Barros
Objective: to evaluate the efficacy of the treatment with hyperbaric oxygen therapy or with topical and intralesional heparin in an animal model of degloving lesions. Methods: we conducted an experimental study with adult, male Wistar rats submitted to degloving of the left hind limb and divided into four groups according to the treatment: Group 1 (control) - without treatment; Group 2 (Heparin) - intralesional application at the time of surgery and topically, in the postoperative period, with heparin spray 10,000IU/mL; Group 3 (hyperbaric oxygenation) - daily sessions of 30 minutes in a hyperbaric chamber with 100% oxygen and 2 ATA pressure; Group 4 (positive control) - administration of a single dose of 45 mg/kg of intraperitoneal allopurinol...
January 2017: Revista do Colégio Brasileiro de Cirurgiões
https://www.readbyqxmd.com/read/28426381/hyperbaric-oxygen-for-experimental-intracerebral-haemorrhage-systematic-review-and-stratified-meta-analysis
#10
Han-Jin Cui, Hao-Yu He, A-Li Yang, Hua-Jun Zhou, Tao Tang, Jie-Kun Luo
OBJECTIVE: Hyperbaric oxygen (HBO) is widely used in treating various neurological diseases. However, HBO for treatment of intracerebral haemorrhage (ICH) remains controversial, in either animal or clinical studies. Therefore, we conducted this systematic review and meta-analysis on studies describing the efficacy of HBO in animal models of ICH. METHODS: Studies were identified by searching mainstream databases through November 2015. The efficacy of HBO in animal models of ICH was assessed by changes in the brain water content (BWC), neurobehavioural outcome (NO) or both...
2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28374944/reliability-of-eustachian-tube-function-measurements-in-a-hypobaric-and-hyperbaric-pressure-chamber
#11
Moritz F Meyer, Stefanie Jansen, Oxana Mordkovich, Karl-Bernd Hüttenbrink, Dirk Beutner
OBJECTIVES: Measurement of the Eustachian tube (ET) function is a challenge. The demand for a precise and meaningful diagnostic tool increases - especially since more and more operative therapies are being offered without objective evidence. The measurement of the ET function by continuous impedance recording in a pressure chamber is an established method, although the reliability of the measurements is still unclear. METHODS: 25 participants (50 ears) were exposed to phases of compression and decompression in a hypo and hyperbaric pressure chamber...
April 4, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28357837/diving-under-the-influence-issues-in-researching-personality-and-inert-gas-narcosis
#12
Charles H Van Wijk, Jarred H Martin, Willem A J Meintjes
BACKGROUND: This paper considers the relationship between measures of personality and mood states, and susceptibility to inert gas narcosis. It briefly reviews the topics of inert gas narcosis affecting personality, and personality affecting the susceptibility to inert gas narcosis. There appears to be is a theoretical argument for a possible relationship between measures of personality, mood states, and susceptibility to narcosis. Practically, such a relationship may speak to issues in selection, training and preparation, risk assessments, and even accident investigation in the diving and/or hyperbaric environment...
2017: International Maritime Health
https://www.readbyqxmd.com/read/28357823/performance-of-the-bbraun-perfusor-space-syringe-driver-under-hyperbaric-conditions
#13
Lachlan Frawley, Bridget Devaney, Theo Tsouras, Geoff Frawley
BACKGROUND: The BBraun Perfusor Space™ syringe driver is already in use by ambulance services and retrieval teams but has not previously been assessed for hyperbaric chamber use. METHODS: Pump flow accuracy was tested at rates between 1 and 40 ml· h⁻¹ using three different brands of 50 ml syringe. Function of the occlusion alarms was assessed using the same syringes. The hyperbaric profile involved pressurisation to 284 kPa at 30 kPa· min⁻¹, 30 min at 284 kPa and decompression at 30 kPa· min⁻¹...
March 2017: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
https://www.readbyqxmd.com/read/28296900/wireless-transmission-of-biosignals-for-hyperbaric-chamber-applications
#14
Carlos Perez-Vidal, Luis Gracia, Cristian Carmona, Bartomeu Alorda, Antonio Salinas
This paper presents a wireless system to send biosignals outside a hyperbaric chamber avoiding wires going through the chamber walls. Hyperbaric chambers are becoming more and more common due to new indications of hyperbaric oxygen treatments. Metallic walls physically isolate patients inside the chamber, where getting a patient's vital signs turns into a painstaking task. The paper proposes using a ZigBee-based network to wirelessly transmit the patient's biosignals to the outside of the chamber. In particular, a wearable battery supported device has been designed, implemented and tested...
2017: PloS One
https://www.readbyqxmd.com/read/28282637/novel-liquid-chromatography-method-based-on-linear-weighted-regression-for-the-fast-determination-of-isoprostane-isomers-in-plasma-samples-using-sensitive-tandem-mass-spectrometry-detection
#15
Justyna Aszyk, Jacek Kot, Yurii Tkachenko, Michał Woźniak, Anna Bogucka-Kocka, Agata Kot-Wasik
A simple, fast, sensitive and accurate methodology based on a LLE followed by liquid chromatography-tandem mass spectrometry for simultaneous determination of four regioisomers (8-iso prostaglandin F2α, 8-iso-15(R)-prostaglandin F2α, 11β-prostaglandin F2α, 15(R)-prostaglandin F2α) in routine analysis of human plasma samples was developed. Isoprostanes are stable products of arachidonic acid peroxidation and are regarded as the most reliable markers of oxidative stress in vivo. Validation of method was performed by evaluation of the key analytical parameters such as: matrix effect, analytical curve, trueness, precision, limits of detection and limits of quantification...
April 15, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28282079/-fibromyalgia-and-myalgic-encephalomyelitis-the-oxygen-clue
#16
Pablo Beretta
In recent years, different authors have described various musculoskeletal oxygenation alterations in patients with fibromyalgia with or without myalgic encephalomyelitis. These patients suffer from meteor-sensitivity worsening their symptoms in lower atmospheric pressure climates (decreased oxygen pressure). They also respond successfully to hyperbaric chamber treatment (increased oxygen pressure), and to coenzime Q10 intake (improved use of oxygen). Having reviewed these findings, oxygen therapy is postulated in higher concentration and pressures to relief the symptoms of fibromyalgia with or without myalgic encephalomyelitis...
July 2016: Vertex: Revista Argentina de Psiquiatriá
https://www.readbyqxmd.com/read/28237802/retracted-early-hyperbaric-oxygen-therapy-may-improve-the-long-term-neurological-consequences-of-diabetic-patients-suffering-from-hemorrhagic-stroke
#17
Qian Xu, Yi-Ting Wei, Shuang-Bo Fan, Liang Wang, Xiao-Ping Zhou
This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/our-business/policies/article-withdrawal). This article has been retracted at the request of Neuroscience Letters has learned that text throughout this paper duplicates, or nearly duplicates, text in an earlier paper by others (Rusyniak DE, Kirk MA, May JD, Kao LW, Brizendine EJ, Welch JL, Cordell WH, Alonso RJ; Hyperbaric Oxygen in Acute Ischemic Stroke Trial Pilot Study, Stroke. 2003 Feb;34(2):571-4)...
February 23, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28221393/comex-30-f%C3%A3-r-behandling-av-tryckfallssjuka-med-neurologiska-symtom
#18
Anders Rosén, Nicklas Oscarsson, Olaf Gräbel, Göran Sandström
The use of treatment table COMEX 30 for severe neurological decompression sickness Decompression sickness (DCS) can occur after all dives. It often requires treatment in a pressure chamber. DCS with symptoms from the nervous system is particularly serious. In certain cases, the commonly used recompression table (USN TT6) does not suffice to revert severe neurological symptoms. A more advanced recompression table, COMEX 30, can be utilized in these cases. We report three cases of DCS where treatment according to COMEX 30 successfully resolved neurological symptoms...
February 17, 2017: Läkartidningen
https://www.readbyqxmd.com/read/27966204/the-influence-of-pressure-changes-on-the-retentive-force-and-coronal-microleakage-of-different-types-of-posts-in-endodontically-treated-teeth-during-simulated-dives
#19
Gergo Mitov, Florian Draenert, Paul Schumann, Marcus Stötzer, Constantin von See
OBJECTIVES: We assessed the influence of a simulated diving environment on the interfacial microleakage and retentive forces of different post types in root-canal-filled teeth. MATERIALS AND METHODS: One-hundred-and-twenty extracted, single-rooted teeth were endodontically treated and were randomly divided into three groups according to the post and cement used: ER Post/Harvard cement (Titanium), CeraPost/DentinBuild Evo (Zirconia), DT Light Post/Calibra (FRC). Each group was randomly divided into two equal subgroups, a control group, and an experimental group, subjected to simulated dives to 456 kPa in a diving chamber...
December 2016: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
https://www.readbyqxmd.com/read/27964845/intratympanic-steroid-injection-and-hyperbaric-oxygen-therapy-for-the-treatment-of-refractory-sudden-hearing-loss
#20
Filiz Gülüstan, Zahide Mine Yazıcı, Wesam M E Alakhras, Omer Erdur, Harun Acipayam, Levent Kufeciler, Fatma Tulin Kayhan
INTRODUCTION: Controversy surrounds the use of salvage therapies to treat sudden sensorineural hearing loss (SSNHL), with no consensus on recommendations. While several studies have demonstrated the effectiveness of intratympanic administration of steroids (ITS) and hyperbaric oxygen (HBO) treatment, few have compared the efficacy of ITS and HBO therapy in patients with refractory SSNHL. OBJECTIVE: We evaluated the efficiency of ITS and HBO therapy in patients with refractory SSNHL...
November 22, 2016: Brazilian Journal of Otorhinolaryngology
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