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The effects of increased gas density on pulmonary mechanics
nitrogen human neon pulmonary respiratory Helium Work of Breathing
2009/7/20
The effects of increased gas density on pulmonary mechanics.
Pulmonary alveolar macrophage response to hyperbaric carbon monoxide exposure
carbon monoxide pulmonary CO animal guinea pig HBO
2009/7/17
The sublethal effects of carbon monoxide (CO) in hyperbaric environments have not been adequately characterized. A physiologically sensitive indicator of sublethal effects of a contaminant is the pulm...
Pulmonary oxygen toxicity in chickens and rabbits
hyperbaric animal rabbit chicken Pulmonary oxygen toxicity
2009/7/17
Chickens exposed to hyperbaric oxygen (3 to 5 ATA) or to 100percent oxygen at atmospheric pressure for prolonged periods showed no pathologic pulmonary damage, although hydrogen peroxide did accumulat...
Diffusion-dependence of pulmonary gas mixing at 5.5 and 9.5 ATA
human Gas-phase diffusivity pulmonary gas mixing
2009/7/17
Gas-phase diffusivity is inversely proportional to pressure, so mixing of inspired gas in the lung can be expected to be poor in hyperbaric environments. Subjects performed multiple-breath wash-in of ...
Pulmonary function in men with intermittent long-term exposure to hyperbaric oxygen
pulmonary hyperbaric human pulmonary function oxygen toxicity pulmonary intermittent exposure
2009/7/16
The effect of intermittent exposure to hyperbaric oxygen over a long period of time was evaluated in 65 subjects. Pulmonary ventilation and diffusion capacities were measured in 65 divers as well as i...
Increased pulmonary vascular resistance during liquid ventilation
pulmonary liquid ventilation fluorocarbon cat animal
2009/7/16
The effect of liquid ventilation on pulmonary vascular resistance was studied in an isolated cat lung preparation in situ. Lungs were perfused with whole blood from a donor cat at a constant flow of 1...
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...
Positive-pressure oxygen breathing and pulmonary atelectasis during immersion
human oxygen pulmonary atelectasis immersion
2009/7/16
The effect on vital capacity of 1 h of oxygen breathing with and without continuous positive pressure was studied in five subjects during immersion. Vital capacity (VC) was used as an index of pulmona...
Pulmonary atelectasis formation during diving with closed-circuit oxygen breathing apparatus
human rebreather oxygen Pulmonary atelectasis immersion
2009/7/15
The physiological effects of diving with two types of closed-circuit oxygen breathing apparatus were investigated in 4 divers. In one apparatus the breathing bag was mounted on the dorsum and in the o...
New perspectives on hyperoxic pulmonary toxicity--a review.
Relations of smoking and diving experience to pulmonary function among U.S. Navy divers
pulmonary smoking respiratory divers
2009/7/15
The relations of 4 pulmonary function parameters (measured from the forced expiratory spirogram) with diving experience (in years) and indices of cigarette smoking were examined in a group of 93 healt...
A case of delayed-onset pulmonary barotrauma in a scuba diver
pneumomediastinum decompression sickness pulmonary barotrauma hyperbaric case report Adjunctive therapy
2009/7/14
A 23-yr-old male scuba diver was admitted to the hyperbaric chamber of the Polish Army Training Centre of Divers and SCUBA Divers for treatment of pneumomediastinum and possible decompression sickness...
Pulmonary mechanics and atelectasis during immersion in oxygen-breathing subjects
human Pulmonary mechanics atelectasis oxygen immersion
2009/7/14
It has been suggested that vital capacity (VC) reduction seen during head-out immersion and oxygen breathing is due to atelectasis formation. In this study VC was reduced in 8 healthy subjects by 8.7p...
Vascular pressures and passage of gas emboli through the pulmonary circulation
pulmonary air animal dog
2009/7/10
Anesthetized dogs received venous air infusions at 0.35 ml.kg-1.min-1. In 60% of a group of 15 dogs, venous bubbles spilled over into the arterial circulation and were detected with the ultrasound Dop...
Venous gas embolism: time course of residual pulmonary intravascular bubbles
CO2 carbon dioxide nitrogen pulmonary air animal dog Venous gas embolism
2009/7/9
The time course of pulmonary intravascular air emboli was studied in anesthetized dogs. In one series of experiments air was infused into the right atrium at 0.10 ml.kg-1.min-1 or 0.25 ml.kg-1.min-1 f...