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Hyperbaric Chamber

Anna Hartman-Ksycińska, Jolanta Kluz-Zawadzka, Bogumił Lewandowski
High-altitude illness is a result of prolonged high-altitude exposure of unacclimatized individuals. The illness is seen in the form of acute mountain sickness (AMS) which if not treated leads to potentially life-threatening high altitude pulmonary oedema and high-altitude cerebral oedema. Medical problems are caused by hypobaric hypoxia stimulating hypoxia-inducible factor (HIF) release. As a result, the central nervous system, circulation and respiratory system function impairment occurs. The most important factor in AMS treatment is acclimatization, withdrawing further ascent and rest or beginning to descent; oxygen supplementation, and pharmacological intervention, and, if available, a portable hyperbaric chamber...
2016: Przegla̧d Epidemiologiczny
José Francisco Gallegos-Hernández, Alejandro Reyes-Vivanco, Héctor Arias-Ceballos, Gerardo Gabriel Minauro-Muñoz, Alma Lilia Ortiz-Maldonado, Daniel Israel García-Ruiz, Martín Hernández-Sanjuán
INTRODUCTION: Osteoradionecrosis of the mandible is a relatively common complication in patients with head and neck cancer undergoing radiotherapy or concomitant chemoradiotherapy, characterized by exposure of the mandibular bone either in the mouth or in the facial skin, with no improvement with conservative treatment for six months. The risk factors are radiotherapy in head and neck region, lack of dental prophylaxis before treatment and dental extraction. MATERIAL AND METHODS: Retrospective observational study analyzing incidence and etiologic factors of osteoradionecrosis in 250 patients undergoing radiotherapy or combined treatment of cervicofacial area between 2002 and 2010...
November 2016: Gaceta Médica de México
Gerardo Bosco, Giacomo Garetto, Alessandro Rubini, Antonio Paoli, Prachiti Dalvi, Devanand Mangar, Enrico M Camporesi
INTRODUCTION: Some patients admitted to the intensive care unit (ICU) might require repetitive hyperbaric oxygen treatment (HBOT) while receiving critical care. In such cases, the presence of a hyperbaric chamber located inside or near an ICU is preferable; however, this set-up is not always possible. In Padua, the "Associazione Tecnici IPerbarici" hyperbaric centre is a stand-alone facility outside of a hospital. Despite this, selected ICU patients receive HBOT at this facility. METHODS: We retrospectively reviewed the medical records from 2003 to 2013 of 75 consecutive, critically-ill patients, 28 of whom were initially intubated and mechanically ventilated whilst undergoing HBOT...
September 2016: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
Maty G P Looijen, Dallas J New, Carrie D Fischer, Rkia Dardari, Karyn M Irwin, Christopher J Berezowski, Stephanie L Bond, Renaud Léguillette
OBJECTIVE To evaluate the mRNA expression of T helper (Th)1, Th2, and Th17 cell-associated inflammatory mediators in cells of bronchoalveolar lavage fluid samples collected from healthy horses exposed to hyperbaric oxygen (HBO) and to monitor blood oxygen concentration during and following HBO therapy. ANIMALS 8 healthy horses. PROCEDURES In a randomized controlled crossover design study, each horse was exposed (beginning day 1) to 100% oxygen at a maximum of 3 atmospheres absolute (304 kPa) daily for 10 days or ambient air at atmospheric pressure in the HBO chamber for an equivalent amount of time (control)...
October 2016: American Journal of Veterinary Research
K Khan
Decompression injuries occur on account of the special hyperbaric effects during the emerge phase and require superior therapeutic knowledge. Vitally important is emergency treatment with high concentrated oxygen at an early stage. Sever decompression injuries require oxygenation in a hyperbaric treatment chamber.
September 2016: Pneumologie
Benjamin B Williams, Huagang Hou, Rachel Coombs, Harold M Swartz
A number of studies have reported benefits associated with the application of hyperbaric oxygen treatment (HBO) delivered immediately prior to radiation therapy. While these studies provide evidence that pre-treatment with HBO may be beneficial, no measurements of intratumoral pO2 were carried out and they do not directly link the apparent benefits to decreased hypoxic fractions at the time of radiation therapy. While there is empirical evidence and some theoretical basis for HBO to enhance radiation therapy, without direct and repeated measurements of its effects on pO2, it is unlikely that the use of HBO can be understood and optimized for clinical applications...
2016: Advances in Experimental Medicine and Biology
E V Govsh, V G Podsevatkin, D S Blinov, S V Kiryukhina, S V Podsevatkina, N V Bochkareva
Experiments on the model of immobilization stress in albino mice showed that a combination of mexidol, thymogen, and hyperbaric oxygenation reduced adverse effects of diazepam on behavioral response of animals in the black-and-white chamber and elevated cross maze tests and led to optimization of the blood gas composition as manifested by increased oxygen tension, normalization of the partial pressure of carbon dioxide, and restoration of the acid-base balance and blood bicarbonate level. The proposed combined treatment can be recommended for the treatment of patients with stress-induced pathology...
2016: Eksperimental'naia i Klinicheskaia Farmakologiia
Sean McIntire, Lee Boujie
Inner ear barotrauma can occur when the gas-filled chambers of the ear have difficulty equalizing pressure with the outside environment after changes in ambient pressure. This can transpire even with small pressure changes. Hypobaric or hyperbaric environments can place significant stress on the structures of the middle and inner ear. If methods to equalize pressure between the middle ear and other connected gas-filled spaces (i.e., Valsalva maneuver) are unsuccessful, middle ear overpressurization can occur...
2016: Journal of Special Operations Medicine: a Peer Reviewed Journal for SOF Medical Professionals
Massimo Pieri, Danilo Cialoni, Alessandro Marroni
INTRODUCTION: Insulin-dependent diabetes has been considered a scuba diving contraindication. This is currently being reconsidered for well-controlled diabetes. We developed a real-time continuous glucose monitor (CGM) to check glycemia, or blood glucose (BG), during diving, both for prospective studies and to increase diabetic diver safety, allowing for real-time control of glycemia and hypoglycemia prevention. To ensure CGM measurement accuracy we tested the method under hyperbaric conditions...
May 2016: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
Susan Churchill, Kayla Deru, Gail Wilson, Rebecca Cable, James E Bell, Lindell K Weaver
INTRODUCTION: Changes in visual acuity are a known side effect of hyperbaric oxygen (HBO₂). We conducted a quality improvement initiative to better quantify visual change risk and to identify possible risk factors. METHODS: Vision was checked weekly in a clinical HBO₂ population by Snellen eye chart. Visual acuity change was defined as Snellen test worsened to 20/40 or greater or by loss of 2 lines. RESULTS: Of 85 patients treated from January 2013 to February 2015 with 10 HBO₂ sessions and ≥ 2 weeks of visual acuity testing, 53 (62%) were male...
May 2016: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
Adriano Valerio, Matteo Verzè, Francesco Marchiori, Igor Rucci, Lucia De Santis, Irene Aprili, Lucia Antolini, Anna Sannino, Alessia Canello, Enrico Checchin, Francesca Mazzola, Sara Ferrari, Marta Garon, Alberto Schonsberg, Stefano Tardivo
Carbon monoxide acute intoxication is a common cause of accidental poisoning in industrialized countries and sometimes it produces a real mass casualty incident. The incident described here occurred in a church in the province of Verona, when a group of people was exposed to carbon monoxide due to a heating system malfunction. Fifty-seven people went to the Emergency Department. The mean carboxyhemoglobin (COHb) level was 10.1±5.7% (range: 3-25%). The clinicians, after medical examination, decided to move 37 patients to hyperbaric chambers for hyperbaric oxygen (HBO) therapy...
July 4, 2016: Disaster Medicine and Public Health Preparedness
Janne Tikkinen, Tomi Wuorimaa, Martti A Siimes
INTRODUCTION: Inert gas narcosis (IGN) impairs cognitive performance and some divers are more susceptible to IGN than others. We compared the sensitivity of two reaction time tests to detect changes in performance at pressure and compared these results with critical flicker fusion frequency (CFF) changes at the same ambient pressures. METHODS: The study assessed simple reaction time (RT), mean time correct of the discrimination reaction time (MTC) and CFF in 30 professional divers breathing air at 101 kPa and 608 kPa in a hyperbaric chamber...
June 2016: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
Kareem Khan
Decompression injuries occur on account of the special hyperbaric effects during the emerge phase and require superior therapeutic knowledge. Vitally important is emergency treatment with high concentrated oxygen at an early stage. Sever decompression injuries require oxygenation in a hyperbaric treatment chamber.
June 2016: Deutsche Medizinische Wochenschrift
Priya Jeyaraj, T K Bandyopadhyay
INTRODUCTION: Osteoradionecrosis of the jaws produces a considerable amount of esthetic as well as functional deficits seriously affecting quality of life of the patient. Cases are often notoriously difficult to treat and manage owing to associated comorbidities of the patient, post irradiation fibrosis and decreased vascularity at the site, which complicates free tissue flap and graft transfer, that subsequently succumb to failure. Hyperbaric oxygen therapy (HBOT), in which 100 % oxygen is administered by mask under 2...
June 2016: Journal of Maxillofacial and Oral Surgery
A hadanny, O Meir, Y Bechor, G Fishlev, J Bergan, S Efrati
INTRODUCTION: Hyperbaric oxygen (HBO2) therapy is applied in a growing number of cases for patients with different comorbidities and is considered a generally safe therapy. The main side effects related to HBO2 therapy are barotrauma, central nervous system- and pulmonary oxygen toxicity, claustrophobia, anxiety and visual disturbances. The aim of this study was to evaluate the incidence of side effects associated with HBO2 therapy and risk factors in a large cohort of patients treated for different indications...
March 2016: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
J Dituri, R Sadler, F Siddiqi, C Sadler, N Javeed, H Annis, H Whelan
Decompression sickness is a potentially fatal illness. Optimal treatment is dry recompression with hyperbaric oxygen. In-water recompression (IWR) offers expedited treatment but has insufficient evidence to recommend it as a treatment option. This trial compares IWR to standard surface oxygen treatment using 2D echocardiography as the semi-quantitative measurement for inert gas loading. Divers were randomly assigned to either IWR or normobaric oxygen (NBO2). A provocative dive profile to 33.5 meters for 25 minutes was used to stimulate bubble formation...
March 2016: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
Eimear Dolan, Sanjoy Deb, Graeme Stephen, Paul Swinton
INTRODUCTION: Exposure to the confined hyperbaric, hyperoxic environment of the saturation chamber poses a number of unique physiological challenges to divers. Appropriately tailored training, nutrition and health programs may help support the body to cope with and overcome these challenges. AIM: To describe the self-reported habits and attitudes of saturation divers toward issues related to health, lifestyle, nutrition and physical activity. METHODS: A questionnaire was developed to elicit information related to four key areas: 1) respondent demographics; 2) physical activity habits and attitudes; 3) nutritional attitudes; and 4) general lifestyle and health information...
March 2016: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
P Godoy, C Pont, A Artigues, M Alsedà
BACKGROUND: The objective was to study a mass carbon monoxide (CO) poisoning and the characteristics of the asymptomatic cases. METHODS: On the 2nd of February, 2015, a group of more than 30 television viewers of a football match contacted the emergency department due to suspected CO poisoning from a butane stove. A visual inspection of the location of the exposure and a descriptive epidemiological study were conducted. Based on the type of variable, the presence of a statistical association was studied with Fisher's exact test or the Kruskal-Wallis test...
May 21, 2016: Revista Clínica Española
J Rhet Tucker, Li Xu, Erich M Sturgis, Abdallah S R Mohamed, Theresa M Hofstede, Mark S Chambers, Stephen Y Lai, Clifton David Fuller, Beth Beadle, G Brandon Gunn, Katherine A Hutcheson
PURPOSE: The present study was undertaken to evaluate osteoradionecrosis (ORN) in patients with salivary gland malignancies (SGM) after treatment with radiation therapy. MATERIALS AND METHODS: The medical records of 172 patients treated with radiation therapy for SGM during a 12-year period (August 2001 to November 2013) were reviewed. Incidence, time to event, staging and management of ORN were analyzed. RESULTS: Of the 172 patients, 7 patients (4%) developed ORN (median latency: 19months, range: 4-72months)...
June 2016: Oral Oncology
Susan Churchill, R Scott Miller, Kayla Deru, Steffanie H Wilson, Lindell K Weaver
Simple reaction time (SRT) and procedural reaction time (PRT) are speed-of-processing tasks in the Automated Neuropsychological Assessment Metrics (ANAM) that may be sensitive to mild traumatic brain injury (mTBI). The investigators measured SRT and PRT throughput (correct responses per minute) at baseline, 6 weeks, and 13 weeks in military personnel with mTBI randomized to local care or 40 chamber sessions (sham-1.2 atmospheres absolute [ATA] air, hyperbaric oxygen-1.5 ATA O2). Scores were assessed at baseline using univariate analysis of variance and across time with repeated measures methods...
May 2016: Military Medicine
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