搜索结果: 61-75 共查到“军事医学与特种医学 oxygen”相关记录358条 . 查询时间(0.14 秒)
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...
Visual reaction time performance preceding CNS oxygen toxicity
human oxygen toxicity visual
2009/7/14
The visual reaction time performance of divers experiencing CNS oxygen toxicity was assessed during the development of closed-circuit 100percent oxygen breathing diving schedules at the U.S. Navy Expe...
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...
Central nervous system oxygen toxicity in the resting rat: postponement by intermittent oxygen exposure
pulmonary oxygen toxicity seizure hyperbaric outcomes nitrox
2009/7/14
Intermittent O2 breathing is a proven means of delaying pulmonary O2 toxicity during exposure to hyperbaric oxygen. The effect of an intermittent exposure in the pressure range toxic to the CNS was st...
Bronchomotor response to cold air or helium-oxygen at normal and high ambient pressures
cold helium heliox hyperbaric human air lung animal rabbit
2009/7/10
Effects of inhalation of cold air or helium-oxygen mixture on lung resistance (RL) were studied in anesthetized and tracheotomized rabbits under normal ambient pressure and in human volunteers under n...
Influence of heliox,oxygen,and N2O-O2 breathing on N2 bubbles in adipose tissue
oxygen heliox decompression animal rat nitrous oxide adipose tissue bubble growth nitrogen elimination
2009/7/9
Bubbles in rat adipose tissue were studied at 1 bar after decompression from an exposure to air at 3.3 bars (absolute) for 4 h. During air breathing the bubbles grew throughout the observation period....
Mental performance during submaximal exercise in 13 and 17% oxygen
exercise hypobaric chamber performance cognitive Psychomotor
2009/7/9
Submarine crews live in atmospheres containing variable levels of O2 and CO2. Under these conditions, significant reduction of the O2 may impair mental function during physical exertion. Therefore, ps...
Quantitative ultrastructural study of the rabbit lung: exposure to 60% oxygen for 21 days
pulmonary oxygen toxicity animal rabbit
2009/7/9
When rabbits were exposed to 60% oxygen for 21 days, arterial PaO2 showed statistically insignificant changes at 6-8 days (69 +/- 5 Torr) and 14-16 days (62 +/- 5 Torr); at 21 days the PaO2 was signif...
Sleep organization in man during long stays at 30 and 40 bar in a helium-oxygen mixture
saturation retinal eye decompression helium heliox sleep
2009/7/8
Sleep organization was studied during 5 dives with long holds (from 6 to 15 days) at 30 and 40 bar in a helium-oxygen mixture. In total, 16 professional divers participated in these saturation dives; ...
Cerebral blood flow distribution during exposure to 5 bar oxygen in awake rats
decompression CO2 carbon dioxide hypoxia hyperbaric cerebral blood flow cardiac output oxygen animal rat
2009/7/8
The regional cerebral blood flow (rCBF) and cardiac output (CO) were measured in conscious rats by the microsphere method during control, after 5 and 60 min at 5 bar O2, and 5 min after decompression ...
Effect of hyperbaric and normobaric oxygen on pulmonary endothelial cell function
pulmonary animal rat
2009/6/12
The effect of prior exposure to raised partial pressures of oxygen on pulmonary endothelial cell function was assessed in the isolated perfused rat lung preparation. Prolonged exposure to both 1 bar (...
Effect of severity, time to recompression with oxygen, and re-treatment on outcome in forty-nine cases of spinal cord decompression sickness
decompression sickness outcomes recompression spinal cord treatment re-treatment case reports human
2009/6/12
For systematic study of the effects of clinical severity, time to recompression with oxygen, and re-treatment on outcome from spinal cord DCS, case records from the recompression chamber at the U.S. N...
Effect of a single exposure to hyperbaric oxygen on blood mononuclear cells in human subjects
HBO hyperbaric air
2009/6/12
We studied the effect of a single exposure to a therapeutic profile of hyperbaric oxygen on blood mononuclear cell subset. Twenty healthy volunteers were exposed to 0.28 MPa for 90 min. Thirteen breat...
Hyperbaric oxygen and the cancer patient:a survey of practice patterns
HBO hyperbaric questionnaire cancer
2009/6/12
A questionnaire was sent to 179 clinical hyperbaric medicine facilities to survey treatment policies and referral patterns for patients with a history of malignancy. Eighty-five surveys were returned....
Hyperbaric oxygen as an adjunctive treatment for severe laryngeal necrosis: a report of nine consecutive cases
HBO hyperbaric laryngeal necrosis
2009/6/12
Laryngeal necrosis is a rare complication of therapeutic radiation, but when it does occur there is no established, definitive treatment and laryngectomy is frequently required. This report is a retro...