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Neuropsychologic assessment of cerebral decompression sickness and gas embolism
decompression sickness cognitive hyperbaric Neuropsychologic assessment gas embolism cerebral
2009/7/10
A battery of neuropsychologic tests was administered to individuals who had sustained CNS decompression sickness or arterial gas embolism. Testing was intended to assess the presence of residual cogni...
Heliox treatment for spinal decompression sickness following air dives
spinal decompression sickness air Heliox
2009/7/10
Enforced delay in treatment of spinal decompression sickness following scuba diving can result in paraplegia. Poor response from initial recompression to 18 m presents the clinician with a difficult m...
Experimental determination of latency, severity, and outcome in CNS decompression sickness
decompression sickness neurological outcomes animal dog
2009/7/10
Twenty-eight dogs underwent a 300 fsw chamber dive designed to generate spinal cord decompression sickness (DCS), which was detected by observing a reduction in the amplitude of the spinal somatosenso...
Central nervous system decompression sickness:latency of 1070 human cases
decompression sickness neurological hyperbaric human spinal cord
2009/7/10
Many aspects of central nervous system (CNS) decompression sickness (DCS) are poorly understood, including the temporal pattern of its presentation and the pathogenic mechanisms involved in the develo...
Manifestations and treatment of 793 cases of decompression sickness in a compressed air tunneling project in Hong Kong
decompression sickness air commercial
2009/7/10
In the largest compressed air tunneling contract for the construction of the Island Line of the Mass Transit Railway system in Hong Kong, 154,390 man-decompressions occurred, of which 142,140 were aft...
Air vs. He-O2 recompression treatment of decompression sickness in guinea pigs
decompression heliox model air animal guinea pigs
2009/7/10
Air vs. He-O2 (20.9% O2) recompression treatment was examined in a model of severe decompression sickness (DCS) using male albino guinea pigs (Cavia porcellus, 500-600 g). Following decompression to t...
Treatment of decompression sickness with a perfluorocarbon emulsio
decompression sickness perfluorocarbon emulsion Sprague-Dawley rat
2009/7/9
Decompression sickness is caused by the production of tissue and blood stream inert gas bubbles. Perfluorocarbon emulsions (PFC) have enhanced O2 and N2 solubilities as well as a small particle size a...
Arterial gas embolism as a pathophysiologic mechanism for spinal cord decompression sickness
decompression Arterial gas embolism spinal cord animal dog
2009/7/9
A continuous infusion of air (1.0 ml.min-1) was delivered via a fine aortic cannula into the arterial circulation of 7 anesthetized dogs until no spinal cord function could be elicited by somatosensor...
Analysis of some individual risk factors for decompression sickness in Hong Kong
decompression sickness risk factors air commercial
2009/7/9
Individual risk factors for decompression sickness (DCS) were studied in 932 men who had worked for 12 shifts or more at maximum working pressure (MWP) of 1 bar or above in a compressed air tunneling ...
Complement activation involvement in decompression sickness of rabbits
decompression Complement activation acclimatization air rabbit animal
2009/7/9
A hypothesis has been proposed that claims much of the phenomena of decompression sickness (DCS) are mediated by the complement system of blood plasma. This "complement hypothesis" can be used to expl...
Ethanol and venous bubbles after decompression in humans
decompression Ethanol human alcohol
2009/7/9
We exposed 34 subjects to a 48-h, 6.25-msw dive, and administered ethanol (0.5-1.0 ml pure ethanol.kg-1 body weight) orally to 11 of them immediately after direct decompression. Doppler monitoring of ...
Microbubble damage to the blood-brain barrier: relevance to decompression sickness
decompression pulmonary blood brain barrier bubbles animal Guinea Pigs
2009/7/8
Decompression sickness affecting the nervous system is still a serious problem in diving, but the mechanisms involved are in dispute. Although microbubbles can be detected in the pulmonary artery on d...
Decompression comparison of N2 and O2 in rats
decompression comparison outcomes animal rat nitrogen oxygen elimination
2009/7/8
We have previously reported that O2 in the breathing gas mixture contributed significantly to the risk of decompression sickness (DCS) in rats after rapid (less than 10 s) decompression to the surface...
Breath-by-breath monitoring of respiratory gas concentrations during compression and decompression
CO2 carbon dioxide equipment decompression nitrogen hyperbaric chamber
2009/7/8
We compared six systems for sampling respiratory gases from within a hyperbaric chamber to provide online gas concentrations by a mass spectrometer (MS) outside the chamber. Gas at hyperbaric pressure...
Simulation of the dynamics of decompression sickness bubbles and the generation of new bubbles
decompression nitrogen bubbles
2009/7/8
This communication introduces a system of equations for simulating the dynamics of growth and decay of decompression bubbles. The equations are solved by a numerical method and account for gas diffusi...