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Stroke and hyperbaric oxygen

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https://www.readbyqxmd.com/read/29241238/hyperbaric-oxygen-associated-seizure-leading-to-stroke
#1
Jordan M Warchol, Jeffrey S Cooper, Thomas S Diesing
Oxygen toxicity seizures are a well-known complication of hyperbaric oxygen treatment (HBOT). Until now, there have not been any reported cases of an acute ischaemic event (stroke) as the result of a HBOT-associated oxygen toxicity seizure. We report an event in which a seizure and stroke occurred together and consider that the stroke may have been caused by seizure-induced demand ischaemia. This challenges the generally held view that oxygen toxicity seizures in the clinical hyperbaric setting are benign. A discussion of the literature on the subject of seizure-induced brain injury is included...
December 2017: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
https://www.readbyqxmd.com/read/29236169/current-treatment-of-central-retinal-artery-occlusion-a-national-survey
#2
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...
December 13, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/29132229/hyperbaric-oxygen-therapy-in-the-treatment-of-acute-severe-traumatic-brain-injury-a-systematic-review
#3
Samuel Daly, Maxwell Thorpe, Sarah B Rockswold, Molly Hubbard, Thomas A Bergman, Uzma Samadani, Gaylan Rockswold
There has been no major advancement in a quarter of a century for the treatment of acute severe traumatic brain injury (TBI). This review summarizes 40 years of clinical and pre-clinical research on the treatment of acute TBI with hyperbaric oxygen therapy (HBO2) in the context of an impending National Institute of Neurologic Disorders and Stroke (NINDS)-funded, multicenter, randomized, adaptive Phase II clinical trial - the Hyperbaric Oxygen Brain Injury Treatment (HOBIT) trial. Thirty studies (8 clinical and 22 pre-clinical) that administered HBO2 within 30 days of a TBI were identified from PubMed searches...
November 13, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29123937/a-systematic-review-of-the-causes-and-management-of-ischaemic-stroke-caused-by-nontissue-emboli
#4
REVIEW
Ciaran Judge, Sarah Mello, David Bradley, Joseph Harbison
Introduction: The inadvertent or purposeful introduction of foreign bodies or substances can lead to cerebral infarction if they embolize to the brain. Individual reports of these events are uncommon but may increase with the increased occurrences of their risk factors, for example, intra-arterial procedures. Method: We searched EMBASE and MEDLINE for articles on embolic stroke of nontissue origin. 1889 articles were identified and screened and 216 articles were ultimately reviewed in full text and included in qualitative analysis...
2017: Stroke Research and Treatment
https://www.readbyqxmd.com/read/29116691/hyperbaric-oxygen-in-patients-with-ischemic-stroke-following-cardiac-surgery-a-retrospective-observational-trial
#5
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/29097988/hyperbaric-oxygen-therapy-can-induce-angiogenesis-and-regeneration-of-nerve-fibers-in-traumatic-brain-injury-patients
#6
Sigal Tal, Amir Hadanny, Efrat Sasson, Gil Suzin, Shai Efrati
Background: Recent clinical studies in stroke and traumatic brain injury (TBI) victims suffering chronic neurological injury present evidence that hyperbaric oxygen therapy (HBOT) can induce neuroplasticity. Objective: To assess the neurotherapeutic effect of HBOT on prolonged post-concussion syndrome (PPCS) due to TBI, using brain microstructure imaging. Methods: Fifteen patients afflicted with PPCS were treated with 60 daily HBOT sessions. Imaging evaluation was performed using Dynamic Susceptibility Contrast-Enhanced (DSC) and Diffusion Tensor Imaging (DTI) MR sequences...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28940693/hyperbaric-oxygenation-and-20-hydroxyeicosatetreanoic-acid-inhibition-reduce-stroke-volume-in-female-diabetic-sprague-dawley-rats
#7
Mihael Mišir, Marija Renić, Sanja Novak, Martina Mihalj, Anita Ćosić, Monika Vesel, Ines Drenjančević
What is the central question of this study? Is there a beneficial effect and what are the mechanisms of acute and multiple hyperbaric oxygenation (HBO2 ) exposures on the outcome of cerebral tissue injury induced by a transient middle cerebral artery occlusion model in diabetic female rats? Are 20-hydroxyeicosatetreanoic acid and epoxyeicosatrienoic acids involved? What is the main finding and its importance? Equal reduction of cortical and total infarct size in rats treated with HBO2 and HET0016 (20-hydroxyeicosatetreanoic acid production inhibitor) and significant mRNA upregulation of epoxyeicosatrienoic acid-producing enzymes (Cyp2J3 and Cyp2C11) in treated groups suggest that HBO2 and HET0016 are highly effective stroke treatments and that cytochrome P450 metabolites are involved in this therapeutic effect...
September 21, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28937253/sirt1-mediates-improvement-in-cognitive-defects-induced-by-focal-cerebral-ischemia-following-hyperbaric-oxygen-preconditioning-in-rats
#8
P Ding, D Ren, S He, M He, G Zhang, Y Chen, H Sang, Z Peng, W Yan
Hyperbaric oxygen preconditioning (HBO-PC) has been proposed as a safe and practical approach for neuroprotection in ischemic stroke. However, it is not known whether HPO-PC can improve cognitive deficits induced by cerebral ischemia, and the mechanistic basis for any beneficial effects remains unclear. We addressed this in the present study using rats subjected to middle cerebral artery occlusion (MCAO) as an ischemic stroke model following HBO-PC. Cognitive function and expression of phosphorylated neurofilament heavy polypeptide (pNF-H) and doublecortin (DCX) in the hippocampus were evaluated 14 days after reperfusion and after short interfering RNA-mediated knockdown of sirtuin1 (Sirt1)...
September 22, 2017: Physiological Research
https://www.readbyqxmd.com/read/28883864/the-efficacy-of-hyperbaric-oxygen-in-hemorrhagic-stroke-experimental-and-clinical-implications
#9
Robert P Ostrowski, Katarzyna Stępień, Emanuela Pucko, Ewa Matyja
Hemorrhagic stroke, accounting for 10-30% of stroke cases, carries high rates of morbidity and mortality. This review presents the current knowledge on the efficacy of hyperbaric oxygen (HBO)-based modalities in the preclinical research on hemorrhagic stroke. Both preconditioning and post-treatment with HBO are considered as prospective therapeutic options. High efficacy of HBO therapy (HBOT) for brain hemorrhage has been noted. We found that moderate hyperbaric pressures appear optimal for therapeutic effect, while the therapeutic window of opportunity is short...
August 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28783886/cerebrospinal-vascular-diseases-misdiagnosed-as-decompression-illness-the-importance-of-considering-other-neurological-diagnoses
#10
Kiyotaka Kohshi, Yoshitaka Morimatsu, Hideki Tamaki, Yukio Murata, Katsuko Kohshi, Tatsuya Ishitake, Petar J Denoble
The diagnosis of decompression illness (DCI), which is based on a history of decompression and clinical findings, can sometimes be confounded with other vascular events of the central nervous system. The authors report three cases of divers who were urgently transported to a hyperbaric facility for hyperbaric oxygen treatment of DCI which at admission turned out to be something else. The first case, a 45-year-old experienced diver with unconsciousness, was clinically diagnosed as having experienced subarachnoid hemorrhage, which was confirmed by CT scan...
July 2017: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
https://www.readbyqxmd.com/read/28739152/nsl_-32671-retraction-notice-to-early-hyperbaric-oxygen-therapy-may-improve-the-long-term-neurological-consequences-of-diabetic-patients-suffering-from-hemorrhagic-stroke-neuroscience-letters-644-2017-83-86
#11
Qian Xu, Yi-Ting Wei, Shuang-Bo Fan, Liang Wang, Xiao-Ping Zhou
No abstract text is available yet for this article.
March 22, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28641323/ischaemia-reperfusion-injury-and-hyperbaric-oxygen-pathways-a-review-of-cellular-mechanisms
#12
REVIEW
Ashish Francis, Richard Baynosa
Ischaemia-induced tissue injury has wide-ranging clinical implications including myocardial infarction, stroke, compartment syndrome, ischaemic renal failure and replantation and revascularization. However, the restoration of blood flow produces a 'second hit' phenomenon, the effect of which is greater than the initial ischaemic event and characterizes ischaemia-reperfusion (IR) injury. Some examples of potential settings of IR injury include: following thrombolytic therapy for stroke, invasive cardiovascular procedures, solid organ transplantation, and major trauma resuscitation...
June 2017: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
https://www.readbyqxmd.com/read/28625252/-cerebral-injury-induced-by-heat-stroke-and-the-therapeutic-effect-of-hyperbaric-oxygen-therapy
#13
Xiaoxiao Ni, Zhifeng Liu, Qiuyou Xie, Huasheng Tong, Lei Su, Ronghao Yu
With the global warming, the incidence of heat stroke was significantly higher than before. Severe heat stroke has a high mortality, high morbidity and consolidated central nervous system injury characteristics. The main features of severe heat stroke cerebral injury include cognitive impairment, delirium, convulsions and coma. Its mechanism is related with heat shock induced cerebral tissue ischemia and hypoxia, vascular dysfunction, secondary cascade inflammation and so on. Currently, the main treatment of heat stroke cerebral injury is the hypothermia therapy, dehydration for the reduction of intracranial pressure, naloxone and other cerebral protection and nutrition treatments...
June 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28607332/massive-ischemic-stroke-due-to-pulmonary-barotrauma-and-cerebral-artery-air-embolism-during-commercial-air-travel
#14
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
#15
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/28495827/hyperbaric-oxygen-reduces-infarction-volume-and-hemorrhagic-transformation-through-atp-nad-sirt1-pathway-in-hyperglycemic-middle-cerebral-artery-occlusion-rats
#16
Qin Hu, Anatol Manaenko, Hetao Bian, Zongduo Guo, Jun-Long Huang, Zhen-Ni Guo, Peng Yang, Jiping Tang, John H Zhang
BACKGROUND AND PURPOSE: Energy depletion is a critical factor leading to cell death and brain dysfunction after ischemic stroke. In this study, we investigated whether energy depletion is involved in hyperglycemia-induced hemorrhagic transformation after ischemic stroke and determined the pathway underlying the beneficial effects of hyperbaric oxygen (HBO). METHODS: After 2-hour middle cerebral artery occlusion, hyperglycemia was induced by injecting 50% dextrose (6 mL/kg) intraperitoneally at the onset of reperfusion...
June 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28480034/co-administration-of-tissue-plasminogen-activator-and-hyperbaric-oxygen-in-ischemic-stroke-a-continued-promise-for-neuroprotection
#17
REVIEW
Ze-Song Yang, Jun Mu
Intravenous recombinant tissue-type plasminogen activator (r-tPA, alteplase) remains the recommended therapy for acute ischemic stroke. However, several factors are limiting its practical use. It makes it urgent for us to search more efficient strategies that can save the ischemic neurons, and safely extend the time window, while in the mean time reducing the detrimental effects for stroke thrombolysis. Hyperbaric oxygen therapy (HBOT) is considered to be potentially neuroprotective. Co-administration of r-tPA and HBOT has already been proved to be effective, safe and feasible in myocardial infarction...
January 2017: Medical Gas Research
https://www.readbyqxmd.com/read/28431636/systemic-air-embolism-after-endoscopy-without-vessel-injury-a-summary-of-reported-cases
#18
Peter Voigt, Stefan Schob, Sebastian Gottschling, Thomas Kahn, Alexey Surov
INTRODUCTION: Systemic air embolism (SAE) is a rare but serious complication following endoscopic procedures. It may occur with or without direct vessel injury. The aim of this work is to review cases of SAE following endoscopy without proven vessel injury. METHODS: In this systematic review PubMed database was screened for SAE following endoscopy from 1990 to 2015. Only cases without proven major vessel injury were included in the analysis. Including one case of SAE after colonoscopy from our hospital the analysis comprised 40 cases...
May 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28427969/hyperbaric-oxygen-therapy-is-associated-with-lower-short-and-long-term-mortality-in-patients-with-carbon-monoxide-poisoning
#19
MULTICENTER STUDY
Chien-Cheng Huang, Chung-Han Ho, Yi-Chen Chen, Hung-Jung Lin, Chien-Chin Hsu, Jhi-Joung Wang, Shih-Bin Su, How-Ran Guo
BACKGROUND: To date, there has been no consensus about the effect of hyperbaric oxygen therapy (HBOT) on the mortality of patients with carbon monoxide poisoning (COP). This retrospective nationwide population-based cohort study from Taiwan was conducted to clarify this issue. METHODS: Using the Nationwide Poisoning Database, we identified 25,737 patients with COP diagnosed between 1999 and 2012, including 7,278 patients who received HBOT and 18,459 patients who did not...
November 2017: Chest
https://www.readbyqxmd.com/read/28352069/efficacy-of-n-butylphthalide-and-hyperbaric-oxygen-therapy-on-cognitive-dysfunction-in-patients-with-delayed-encephalopathy-after-acute-carbon-monoxide-poisoning
#20
RANDOMIZED CONTROLLED TRIAL
Wenping Xiang, Hui Xue, Baojun Wang, Yuechun Li, Jun Zhang, Changchun Jiang, Jiangxia Pang
BACKGROUND Delayed encephalopathy after acute carbon monoxide (CO) poisoning (DEACMP) is one of the most serious complications after CO poisoning. This study was conducted to explore the efficacy of the combined application of N-Butylphthalide and hyperbaric oxygenation therapy (HBO) on cognitive dysfunction in patients with DEACMP. MATERIAL AND METHODS A total of 184 patients with DEACMP were randomly assigned to either receive HBO or N-Butylphthalide and HBO. Meanwhile, all patients received conventional treatment...
March 29, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
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