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Hyperbaric Chamber

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https://www.readbyqxmd.com/read/29116691/hyperbaric-oxygen-in-patients-with-ischemic-stroke-following-cardiac-surgery-a-retrospective-observational-trial
#1
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
https://www.readbyqxmd.com/read/29098113/hyperbaric-oxygen-therapy-and-oxygen-compatibility-of-skin-and-wound-care-products
#2
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
https://www.readbyqxmd.com/read/29083016/comparison-of-lung-function-values-of-trained-divers-in-1-5-ata-hyperbaric-chamber-after-inhaling-100-oxygen-and-regular-air-a-crossover-study
#3
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
https://www.readbyqxmd.com/read/29037940/hyperbaric-oxygen-treatment-effects-on-in-vitro-cultured-umbilical-cord-blood-cd34-cells
#4
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
https://www.readbyqxmd.com/read/29021747/hyperbaric-oxygen-environment-can-enhance-brain-activity-and-multitasking-performance
#5
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
https://www.readbyqxmd.com/read/28968346/adjunctive-hyperbaric-oxygen-therapy-for-healing-of-chronic-diabetic-foot-ulcers-a-randomized-controlled-trial
#6
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
https://www.readbyqxmd.com/read/28879078/left-ventricle-and-systemic-air-embolism-after-percutaneous-lung-biopsy
#7
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
https://www.readbyqxmd.com/read/28861003/nanobubbles-form-at-active-hydrophobic-spots-on-the-luminal-aspect-of-blood-vessels-consequences-for-decompression-illness-in-diving-and-possible-implications-for-autoimmune-disease-an-overview
#8
REVIEW
Ran Arieli
Decompression illness (DCI) occurs following a reduction in ambient pressure. Decompression bubbles can expand and develop only from pre-existing gas micronuclei. The different hypotheses hitherto proposed regarding the nucleation and stabilization of gas micronuclei have never been validated. It is known that nanobubbles form spontaneously when a smooth hydrophobic surface is submerged in water containing dissolved gas. These nanobubbles may be the long sought-after gas micronuclei underlying decompression bubbles and DCI...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28810963/treating-decompression-sickness-military-flight-simulation-site-community-hospital-partnership
#9
Whitney C Rhodes, George Hertner, Robert Price, Lani Finck, Claudia Temmer, Tracy Cushing, Kathleen Flarity
BACKGROUND: High-altitude flight simulation familiarizes military trainees with the symptoms of hypoxia to prepare them for emergency situations. Decompression sickness (DCS) can occur as a result of these simulations. In cases when ground-level supplemental oxygen does not resolve symptoms, hyperbaric oxygen (HBO) therapy is indicated. Many military hyperbaric chambers have been closed because of cost reductions, necessitating partnerships with community hospitals to ensure access to treatment...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28790934/skin-lesions-in-swine-with-decompression-sickness-clinical-appearance-and-pathogenesis
#10
Long Qing, Dinesh K Ariyadewa, Hongjie Yi, Yewei Wang, Quan Zhou, Weigang Xu
Skin lesions are visual clinical manifestations of decompression sickness (DCS). Comprehensive knowledge of skin lesions would give simple but strong clinical evidence to help diagnose DCS. The aim of this study was to systematically depict skin lesions and explore their pathophysiological basis in a swine DCS model. Thirteen Bama swine underwent simulated diving in a hyperbaric animal chamber with the profile of 40 msw-35 min exposure, followed by decompression in 11 min. After decompression, chronological changes in the appearance of skin lesions, skin ultrasound, temperature, tissue nitric oxide (NO) levels, and histopathology were studied...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28777907/elimination-of-ct-detected-gas-bubbles-derived-from-decompression-illness-with-abdominal-symptoms-after-a-short-hyperbaric-oxygen-treatment-in-a-monoplace-chamber-a-case-report
#11
Takuya Oyaizu, Mitsuhiro Enomoto, Toshihide Tsujimoto, Yasushi Kojima, Atsushi Okawa, Kazuyoshi Yagishita
We report the case of a 54-year-old male compressed-air worker with gas bubbles detected by computed tomography (CT). He had complained of strong abdominal pain 30 minutes after decompression after working at a pressure equivalent to 17 meters of sea water for three hours. The initial CT images revealed gas bubbles in the intrahepatic portal vein, pulmonary artery and bilateral femoral vein. After the first hyperbaric oxygen treatment (HBO₂ at 2.5 atmospheres absolute/ATA for 150 minutes), no bubbles were detected on repeat CT examination...
March 2017: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
https://www.readbyqxmd.com/read/28777905/decompression-sickness-among-diving-fishermen-in-mexico-observational-retrospective-analysis-of-dcs-in-three-sea-cucumber-fishing-seasons
#12
Oswaldo Huchim-Lara, Walter Chin, Silvia Salas, Normando Rivera-Canul, Salvador Cordero-Romero, Juan Tec, Ellie Joo, Nina Mendez-Dominguez
The probabilities of decompression sickness (DCS) among diving fishermen are higher than in any other group of divers. Diving behavior of artisanal fishermen has been directed mainly to target high-value species. The aim of this study was to learn about the occurrence of DCS derived from sea cucumber harvesting in the Yucatán Peninsula, Mexico. We conducted a retrospective chart review of diving fishermen treated at a multiplace hyperbaric chamber in Tizimín, Mexico. In total, 233 recompression therapies were rendered to 166 diving fishermen from 2014 to 2016...
March 2017: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
https://www.readbyqxmd.com/read/28777900/incidence-of-middle-ear-barotrauma-in-staged-versus-linear-chamber-compression-during-hyperbaric-oxygen-therapy-a-double-blinded-randomized-controlled-trial
#13
Andrew W A Ng, Reinhold Muller, John Orton
CONTEXT: Middle ear barotrauma (MEB) is common during chamber compression in hyperbaric oxygen therapy. However, little evidence exists on an optimal compression protocol to minimize the incidence and severity of MEB. OBJECTIVE: To compare the incidence of MEB during hyperbaric oxygen therapy using two different chamber compression protocols. DESIGN: Double-blinded, randomized controlled trial. SETTING: Hyperbaric Medicine Unit, The Townsville Hospital, Queensland, Australia, September 2012 to December 2014...
March 2017: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
https://www.readbyqxmd.com/read/28777517/changes-in-pulmonary-function-in-hyperbaric-chamber-inside-attendants-a-case-control-study
#14
Adem Ozdemir, Gunalp Uzun, Turker Turker, Turker Turker, Ergun Ucar, Senol Yildiz
BACKGROUND: Inside attendants (IAs) [are] exposed to high pressure during hyperbaric oxygen (HBO₂) therapy. The aim of this study was to evaluate the alterations of pulmonary functions in IAs over time. METHODS: IAs in our hyperbaric center constituted the IA group (n=11). A sex- and age-matched control group (n=15) was constituted from hospital staff who had not dived or been exposed to hyperbaric environments before. We measured the respiratory function of all subjects at two time points: 1) at the start of the study; and 2) 12 months after the first measurement...
November 2016: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
https://www.readbyqxmd.com/read/28768082/test-results-for-the-evaluation-of-a-glucometer-for-use-under-hyperbaric-conditions-technical-report
#15
Theo Tsouras
This study aimed to evaluate a recently developed equipment test method by assessing the safe and accurate functioning of the Abbott Optium FreeStyle H portable blood glucose monitor for use in the Alfred Hospital's hyperbaric chamber. The results of this study indicate that the test method can be used successfully to evaluate instruments and/or devices for use in the hyperbaric environment. The evaluation initially found that this particular glucose monitor contained a lithium battery which can be hazardous when used in the hyperbaric environment...
January 2017: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
https://www.readbyqxmd.com/read/28768081/evaluation-of-the-carefusion-alaris-pc-infusion-pump-for-hyperbaric-oxygen-therapy-conditions-technical-report
#16
Andrew Smale, Theo Tsouras
We present a standardized test methodology and results for our evaluation of the Carefusion Alaris PC infusion pump, comprising the model 8015 PC Unit and the model 8100 Large Volume Pump (LVP) module. The evaluation consisted of basic suitability testing, internal component inspection, surface temperature measurement of selected internal components, and critical performance testing (infusion rate accuracy and occlusion alarm pressure) during conditions of typical hyperbaric oxygen (HBO₂) treatment in our facility's class A multiplace chamber...
January 2017: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
https://www.readbyqxmd.com/read/28690173/immediate-and-delayed-hyperbaric-oxygen-therapy-as-a-neuroprotective-treatment-for-traumatic-brain-injury-in-mice
#17
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
#18
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
#19
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
#20
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
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