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Tremor power spectra in guinea pigs:effect of intermediate holding pressure
Tremor power spectra guinea pigs effect intermediate holding pressure
2009/7/20
Tremor power spectra in guinea pigs:effect of intermediate holding pressure.
Ketamine and thiopental sleep responses in guinea pigs in hyperbaric helium-oxygen
drug hyperbaric animal guinea pig sleep heliox
2009/7/17
One-hundred twenty three guinea pigs, randomly divided into four groups, were exposed to the following normoxic environments: Group I, 1 atmosphere absolute (ATA) air; Group II, 1 ATA helium-oxygen (h...
Dose-responses of guinea pigs to diazepam at recompression depths
drug diazepam animal guinea pig adjunctive therapy
2009/7/16
Dose-responses to diazepam were studied in guinea pigs at the recompression pressures used for the treatment of gas embolism and decompression sickness. The conditions and the doses were randomly assi...
Correspondence of brain and rectal temperatures of guinea pigs in helium environments
helium-oxygen environment thermal animal guinea pig
2009/7/16
Brain and rectal temperatures were measured in guinea pigs exposed to helium-oxygen environments at pressures as high as 50 bars. Very high correlations (r = .856, P less than 0.001) between the two v...
Failure of naloxone or physostigmine to reverse nitrogen anesthesia in guinea pigs
drug anesthesia animal guinea pig naloxone physostigmine
2009/7/16
Stress as well as anesthesia has been reported to stimulate endorphin release. The possibility that the stress of compression at 1 atm/min or nitrogen anesthesia, or both, might release endorphins was...
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...
Intravascular bubble composition in guinea pigs: a possible explanation for differences in decompression risk among different gases
decompression decompression sickness breathing gas bubble animal guinea pig rat
2009/7/8
Differences in risk of decompression sickness (DCS) that have been observed among inert gases may reflect differences in gas solubility or diffusivity or both. A higher risk gas might generate a large...
Paradoxical air embolism in pigs with a patent foramen ovale
decompression pulmonary Paradoxical embolism AGE air patent foramen ovale pig animal
2009/7/8
Recent studies have indicated that divers with a patent foramen ovale (PFO) are at risk of developing some forms of decompression sickness. Thus, the objective of the present study was to investigate ...
Relationship between venous bubbles and hemodynamic responses after decompression in pigs
decompression animal pig pulmonary model
2009/6/12
We present a new pig model for studying relationships between venous gas bubbles and physiologic effects during and after decompression. Sixteen pigs were anesthetized to allow spontaneous breathing. ...
Arterial gas bubbles after decompression in pigs with patent foramen ovale
pulmonary air pig animal patent foramen ovale bubble Decompression Sickness
2009/6/12
With patent foramen ovale (PFO), thought to be a risk factor for some forms of DCS, venous bubbles may pass through the patent opening to become arterial bubbles. We exposed 14 anesthetized, spontaneo...
Reduction of decompression illness risk in pigs by use of non-linear ascent profiles
decompression helium heliox decompression illness model dry air chamber animal swine
2009/6/9
An established swine model of neurologic decompression illness (DCI) was adapted to investigate the influence of no-stop ascent profile shape on DCI risk after deep air and heliox dives. Pigs underwen...
Evaluation of oxygen and pressure in treatment of decompression sickness in guinea pigs
decompression sickness animal Guinea Pigs recompression therapy treatment
2009/6/8
These experiments examined whether increasing the partial pressure of oxygen (PO2), hydrostatic pressure, or both were responsible for the improvement in effectiveness of recompression treatment previ...
Decompression sickness risk reduced by native intestinal flora in pigs after H2 dives
decompression chamber hydrogen Swine animal
2009/6/5
Decompression sickness (DCS) risk following a simulated dive in H2 was lower in pigs with a native intestinal flora that metabolized H2. Pigs (n = 27; 19.4 +/- 0.2 kg body mass) were placed in a chamb...
Tissue nitrogen elimination in oxygen-breathing pigs is enhanced by fluorocarbon-derived intravascular micro-bubbles
Algorithms Analysis of Variance Fluorocarbons administration dosage animal Microbubbles
2009/6/3
The present study tested the hypothesis that intravascular micro bubbles generated by i.v. infusion of a 2 % dodecafluoropentane (DDFP) emulsion will enhance tissue denitrogenation during oxygen breat...
Hyperbaric oxygen therapy prolongs survival of guinea pigs with Anaphylaxis
Oxygen animal guinea pigs chicken albumin
2009/5/8
Anaphylaxis produces clinical illness and death when mast cells and basophils release pharmacologically active substances in response to immunoglobulin E. The clinical syndrome includes urticaria, br...