...Marie-Hélène Denault; Fannie Péloquin; Annie-Christine Lajoie; Yves Lacasse Background: Closed-loop oxygen titration devices have been developed to avoid periods of hypoxemia and hyperoxemia, both detrimental to patients hospitalized for respiratory failure and requiring supplemental oxygen...

... thanks to Boyle and Mayow among others, and culminated with the contribution of Priestley and the discovery of oxygen by Lavoisier. Only then was breathing recognized as fulfilling the purpose of respiration, or gas exchange. A century later, a controversy emerged concerning the active or passive...

... successfully. Oxygen therapy may be indicated for hypoxic chronic bronchitis, including long-term usage in cor pulmonale. Pulmonary rehabilitation by exercise training has recently been appreciated, and may be used in combination with the above treatment modalities 20 1 2009 © 1991 S. Karger AG...

...A.G. Stewart; P. Howard The Medical Research Council and the Nocturnal Oxygen Therapy Trial studies clearly demonstrated that long-term oxygen therapy (LTOT) for more than 15 h/day improved mortality and morbidity in a well-defined group of patients with chronic obstructive pulmonary disease...

...M. Donahoe; R.M. Rogers; J.J. Cottrell The available clinical information to date does not support the hypothesis that tissue oxygen debt is the primary cause of the wasting process in the chronic obstructive pulmonary disease (COPD) patient population. However, this should not deter the ‘believers...

..., p < 0.05), while, at the end of O 2 administration, it became higher in patients with COPD than in controls (1.62 ± 0.4% in patients with COPD vs. 0.89 ± 0.5 in control subjects, p < 0.001). In conclusion, our findings showed an oxygen-related increase of both the urinary Na + excretion...

...V. Konrádová; J. Janota; J. Šulová; B. Suková; M. Čopová Numerous signs of pathological alteration were induced in the pseudostratified ciliated epithelium by a 2-hour exposure to 90% oxygen. The ciliary border injury was especially conspicuous, the mean number of cilia in a given area...

...Carlo Sturani; Spyridion Papiris; Vanni Galavotti; Giuseppe Gunella To detect whether pulmonary vascular responsiveness is a factor which can aggravate the pulmonary hypertension induced by irreversible pulmonary fibrosis, we examined the acute hemodynamic effects of low-flow oxygen...

.... It was not possible to predict from any resting cardio-pulmonary variables (including static lung function tests) which patients would develop a decline in arterial PO 2 . In spite of variable PvO 2 values at symptom-limited exercise, a good correlation was obtained between arterial haemoglobin saturation with oxygen...

...Pierre Horsky; Claude Saunier; Denise Hartemann Rats were exposed for 7 days to an oxygen concentration of 85% and then submitted to an aerosol of papain, immediately, 3, 7 or 15 days after this exposure. The number of animals dying increased as the time between the administration of papain...