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Effects of aspirin and dipyridamole on platelet function,hematology,and blood chemistry of saturation divers
decompression human drug aspirin platelet saturation
2009/7/17
Twenty-four young male divers were assigned randomly to 4 treatment groups: Group I received aspirin (325 mg) three times daily; II received dipyridamole (75 mg) three times daily; III received both d...
Solubility of helium,argon,and sulfur hexafluoride in human blood measured by mass spectrometry
human helium argon
2009/7/17
A method has been developed to measure the solubility coefficients of gases in liquids by respiratory mass spectrometry. A sample (2.5 ml) pf the test liquid, equilibrated with a test gas mixture, is ...
Effect of high ambient pressure and oxygen tension on organ blood flow in the anesthetized rat
perfusion oxygen animal rat
2009/7/16
Cardiac output (CO) and blood flow to major organs were investigated in pentobarbital-anesthetized rats using 85Sr- and 141Ce-labeled microspheres (MS) (15 +/- 1 microns (SD)) injected into the left v...
Blood cell changes in asymptomatic divers
human Platelets Erythrocytes asymptomatic divers
2009/7/16
Many recent reports have suggested that diving and decompression cause changes in blood cells even when no overt symptoms of decompression sickness are present. This study subjected 10 normal persons ...
Ruthenium red staining of blood-bubble interface in acute decompression sickness in rat
decompression sickness blood bubble interface animal rat
2009/7/16
The ultrastructure of the blood-bubble interface has been studied in rats decompressed experimentally. Subsequent to staining with ruthenium red there was detected by electron microscopy a continuous ...
Changes in blood-brain barrier permeability to drugs in decompressed rats
decompression human blood brain barrier animal rat drug
2009/7/16
A study has been made of changes in permeability of the blood-brain barrier (BBB) to drugs following exposure to compression-decompression. Fifty-five rats were exposed to 6.1 b (abs) air for 90 min a...
Pulmonary capillary blood volume during immersion in water at different temperatures
human Pulmonary immersion temperature
2009/7/16
Pulmonary capillary blood volume (Qc) was determined for 7 subjects in the standing posture and immersed up to the sternal manubrium at three water temperatures: 34 degrees C +/- 0.5 degrees C, therma...
Effect of high ambient pressure and oxygen tension on organ blood flow in conscious trained rats
cardiac output rat animal Blood Circulation
2009/7/15
Cardiac output and blood flow to different organs and tissues were investigated in conscious trained rats using radiolabeled microspheres (MS) injected into the left ventricle. Two subsequent MS injec...
Properties of red blood cell after multiday exposure to 31 ATA
human red blood cell plasma Erythrocytes heliox saturation
2009/7/15
Hematologic changes, osmotic fragility of red cells, and lipid contents of plasma and red blood cells were determined during the course of a 14-day dry saturation dive at 31 ATA (SEADRAGON IV). Increa...
Cerebral arterial air embolism:III.Cerebral blood flow after decompression from various pressure treatments
cortical evoked potentials Cerebral arterial air embolism Cerebral blood flow
2009/7/15
The effect of various combinations of time between 2 and 20 min and between pressures of 2.8 and 10 bar (60 and 300 ft) breathing air or oxygen at 2.8 bar (60 ft), on the continued recovery of cortica...
Hyperbaric exposure to a 5 ATA He-N2-O2 atmosphere affects the cardiac function and organ blood flow distribution in awake trained rats
trimix cardiac blood flow animal rat
2009/7/14
Previous studies on rats have demonstrated an increased myocardial blood flow (MBF) in spite of an unchanged cardiac output (CO), mean arterial pressure (MAP), and heart rate (HR) when rats were expos...
Blood glucose as a predictive measure for central nervous system oxygen toxicity in conscious rats
hyperbaric oxygen toxicity rats Blood glucose
2009/7/14
Blood glucose concentration was measured during continuous electrocorticographic (ECoG) recording in conscious rats exposed to 3 and 5 atmosphere absolute oxygen (ATA O2). The preconvulsive oxygen-ind...
Blood-gas transport in awake rabbits exposed to normobaric hyperoxia
transport rabbits normobaric hyperoxia
2009/7/14
The time course and terminal effects of normobaric oxygen exposure on the gas transport chain were studied in awake, catheterized rabbits exposed to air (n = 8) for 96 h or 100percent O2 (n = 10) unti...
Effect of 5 bar oxygen on cardiac output and organ blood flow in conscious rats
HBO equipment hyperbaric cardiac output animal rat
2009/7/14
The distribution of cardiac output (CO) was studied in conscious rats during hyperbaric oxygen (HBO) exposure to 5 bar for 60 min. Heart rate (HR) and arterial blood pressure (ABP) were continuously r...
Blood factors and venous gas emboli:surface to 429 mmHg (8.3 psi)
decompression venous gas emboli blood factors bubble doppler
2009/7/9
Analysis of 43 parameters were performed on blood obtained from 30 volunteer subjects before and after a 6-h chamber decompression from the surface to 429 mmHg. Eight subjects (5 male, 3 female) were ...