OBJECTIVE The aim of this study was to explore the factors associated with blood oxygen partial pressure and carbon dioxide partial pressure. METHODS The factors associated with oxygen - and carbon dioxide regulation were investigated in an apneic pig model under veno-venous extracorporeal membrane oxygenation support. A predefined sequence of blood and sweep flows was tested. RESULTS Oxyge...

In this study, modeling of hydrogen, nitrogen, carbon monoxide, methane and carbon dioxide sorption on UTSA-16 framework extrudates in the pressure swing adsorption process was carried out. The pure gas adsorption of these gases at the pressure range (0 to 80) bars at (298, 313, and 338) K have also been measured in a fixed bed. Langmuir, Toth, Sips, UNILAN, Virial and Dubinin-Astakhov adsorpti...

Carbon dioxide embolism is a rare but potentially devastating complication of laparoscopy. To determine the effects of insufflation pressure on the mortality from carbon dioxide embolism, six swine had intravascular insufflation with carbon dioxide for 30 seconds using a Karl Storz insufflator at a flow rate of 35 mL/kg/min. The initial insufflation pressure was 15 mm Hg. Following recovery fro...

background: methanol poisoning is one of the most important poisoning due to drinking of illegal and non-standard alcoholic beverage in some countries. relatively limited studies have been carried out to identify the prognostic factors in methanol poisoning. materials and methods: we performed a retrospective study on acute methanol-intoxicated patients, which were admitted on the loghman hakim...

It is a familiar thesis that if the diffusing apparatus of the lung permits 95 per cent saturation of the blood with oxygen, substantial equilibrium between the carbon dioxide pressures on opposite sides of the alveolar membrane will be attained. The principal supporting argument is the fact that carbon dioxide diffuses 20 to 30 times as rapidly as oxygen. It is assumed that the transfer of eac...

The use of capnography during general anesthesia has become not only state of the art but also a recommended standard of care. In intubated patients, measurements of partial pressure of carbon dioxide in exhaled pulmonary gases approximate partial pressure of carbon dioxide in arterial blood under stable conditions. End-tidal carbon dioxide measurement has allowed anesthetists to continuously f...

We determined the effect of lung recruitment and oscillation amplitude on regional oscillation volume and functional residual capacity (FRC) in high-frequency oscillatory ventilation (HFOV) used in pre-term infants with respiratory distress syndrome (RDS). Changes in lung volume, oscillation volume and carbon dioxide levels were recorded in 10 infants during a stepwise recruitment procedure, an...

Carbon dioxide capture process has been simulated and studied under different process conditions. It has been shown that several process parameters such as lean amine temperature, number of adsorber stages, number of stripper stages and stripper pressure affect different process conditions and outputs such as carbon dioxide removal and reboiler duty. It may be concluded that the simulation of c...

BACKGROUND Carbon dioxide concentration under ophthalmic drapes increases during eye surgery under local anaesthesia. A new prototype has been designed which combines continuous suction of carbon dioxide enriched air and continuous oxygen insufflation under ophthalmic drapes to prevent carbon dioxide accumulation in spontaneously breathing patients undergoing cataract surgery. METHODS In a pr...