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Source: Diving and Hyperbaric Medicine
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Total 67 results found since Jan 2013.
Hyperbaric oxygen-associated seizure leading to stroke.
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. Risk factors for cerebrovascular disease should be taken into consideration in determining treatment pressures for HBOT, as reducing pressure reduces seizure risk.
PMID: 29241238 [PubMed - in process]
Source: Diving and Hyperbaric Medicine - December 15, 2017 Category: Sports Medicine Tags: Diving Hyperb Med Source Type: research
Inner-ear decompression sickness: 'hubble-bubble' without brain trouble?
Authors: Tremolizzo L, Malpieri M, Ferrarese C, Appollonio I
Abstract
Inner-ear decompression sickness (DCS) is an incompletely understood and increasingly recognized condition in compressed-air divers. Previous reports show a high association of inner-ear DCS with persistent foramen ovale (PFO), suggesting that a moderate-to-severe right-to-left shunt might represent a major predisposing factor, and more properly defining it as an event from arterial gas embolism (AGE). However, other conditions characterized by bubbles entering the arterial circulation, such as open-chamber cardiac surgery, do not produce inner-...
Source: Diving and Hyperbaric Medicine - December 11, 2015 Category: Sports Medicine Tags: Diving Hyperb Med Source Type: research
An audit of persistent foramen ovale closure in 105 divers.
CONCLUSIONS: The PFO closure procedure appeared to be safe and was associated with the majority of divers being able to successfully return to unrestricted diving.
PMID: 26165531 [PubMed - indexed for MEDLINE]
Source: Diving and Hyperbaric Medicine - December 11, 2015 Category: Sports Medicine Tags: Diving Hyperb Med Source Type: research
Persistent (patent) foramen ovale (PFO): implications for safe diving.
Authors: Germonpré P
Abstract
Diving medicine is a peculiar specialty. There are physicians and scientists from a wide variety of disciplines with an interest in diving and who all practice 'diving medicine': the study of the complex whole-body physiological changes and interactions upon immersion and emersion. To understand these, the science of physics and molecular gas and fluid movements comes into play. The ultimate goal of practicing diving medicine is to preserve the diver's health, both during and after the dive. Good medicine starts with prevention. For most divers, underwater excursions are not a profess...
Source: Diving and Hyperbaric Medicine - December 11, 2015 Category: Sports Medicine Tags: Diving Hyperb Med Source Type: research
Ischaemia-reperfusion injury and hyperbaric oxygen pathways: a review of cellular mechanisms.
Authors: Francis A, Baynosa R
Abstract
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 resuscitat...
Source: Diving and Hyperbaric Medicine - June 24, 2017 Category: Sports Medicine Tags: Diving Hyperb Med Source Type: research
DCS or DCI? The difference and why it matters.
Authors: Mitchell SJ
Abstract
There are few issues that generate as much confusion in diving medicine as the nomenclature of bubble-induced dysbaric disease. Prior to the late 1980s, the diagnosis 'decompression sickness' (DCS) was invoked for symptoms presumed to arise as a consequence of bubble formation from dissolved inert gas during or after decompression. These bubbles were known to form within tissues, and also to appear in the venous blood (presumably after forming in tissue capillaries). A second diagnosis, 'arterial gas embolism' (AGE) was invoked for symptoms presumed to arise when bubbles were introduce...
Source: Diving and Hyperbaric Medicine - September 18, 2019 Category: Sports Medicine Tags: Diving Hyperb Med Source Type: research
Cerebral arterial gas embolism proven by computed tomography following transthoracic echocardiography using bubble contrast.
Authors: Banham ND, Saw J, Hankey GJ, Ghia D
Abstract
A 75 year-old male developed features of an acute stroke following bubble contrast echocardiography, which was shown on emergent computed tomography scanning to be a result of cerebral arterial gas embolism (CAGE) to the left middle cerebral artery. Ischaemic stroke symptoms have previously been reported as a rare complication of bubble contrast echocardiography. Radiologically proven CAGE from bubble contrast echocardiography had not been reported at the time this case occurred. Immediate provision of 100% oxygen and administration of hyperbaric oxygen are reco...
Source: Diving and Hyperbaric Medicine - September 22, 2020 Category: Sports Medicine Tags: Diving Hyperb Med Source Type: research
The cardiac effects of hyperbaric oxygen at 243 kPa using inchamber echocardiography.
CONCLUSIONS: TTE can be safely performed within a hyperbaric chamber. Cardiac physiology is not adversely affected by HBO in individuals without active cardiac disease.
PMID: 25311320 [PubMed - indexed for MEDLINE]
Source: Diving and Hyperbaric Medicine - December 11, 2015 Category: Sports Medicine Tags: Diving Hyperb Med Source Type: research
Hyperbaric oxygen therapy for osteoradionecrosis.
Authors: Cooper PD, Smart DR
Abstract
Dr Sames and colleagues are to be commended on their thought-provoking article about regional variation in hyperbaric oxygen treatment (HBOT) provision for oro-facial osteoradionecrosis (ORN) across Australia and New Zealand. The four-fold difference between jurisdictions requires further elucidation. As co-directors of the only comprehensive hyperbaric facility in Tasmania, the state with the highest ORN treatment rate, we believe a number of issues pertaining to the Australian situation warrant further consideration. 1. Disease prevalence Comparisons between regions require c...
Source: Diving and Hyperbaric Medicine - April 7, 2016 Category: Sports Medicine Tags: Diving Hyperb Med Source Type: research
Acute spontaneous spinal cord infarction: Utilisation of hyperbaric oxygen treatment, cerebrospinal fluid drainage and pentoxifylline.
CONCLUSIONS: SCI can be severely disabling. Triple therapy with pentoxifylline, CSF drainage and HBOT may reduce disability and further prospective trials are required.
PMID: 33325011 [PubMed - in process]
Source: Diving and Hyperbaric Medicine - December 17, 2020 Category: Sports Medicine Tags: Diving Hyperb Med Source Type: research
Diving-related disorders in commercial breath-hold divers (Ama) of Japan
Diving Hyperb Med. 2021 Jun 30;51(2):199-206. doi: 10.28920/dhm51.2.199-206.ABSTRACTDecompression illness (DCI) is well known in compressed-air diving but has been considered anecdotal in breath-hold divers. Nonetheless, reported cases and field studies of the Japanese Ama, commercial or professional breath-hold divers, support DCI as a clinical entity. Clinical characteristics of DCI in Ama divers mainly suggest neurological involvement, especially stroke-like cerebral events with sparing of the spinal cord. Female Ama divers achieving deep depths have rarely experienced a panic-like neurosis from anxiety disorders. Neuro...
Source: Diving and Hyperbaric Medicine - June 22, 2021 Category: Sports Medicine Authors: Kiyotaka Kohshi Hideki Tamaki Fr édéric Lemaître Yoshitaka Morimatsu Petar J Denoble Tatsuya Ishitake Source Type: research
