EDITOR: Standard non-invasive monitoring during anaesthesia usually includes pulse oximetry saturated pressure of oxygen (SPO2) and end-tidal carbon dioxide (end-tidal CO2). They frequently fail to monitor blood gas changes during cardiac surgery due to reduction in perfusion, ambient light, hypothermia and the use of vasoconstrictors [1]. It is also impossible to monitor SPO2 during cardiopulm...

We evaluated the clinical performance of a continuous intraarterial blood gas monitoring (CIABG) system which includes a fluorometric intravascular sensor. Seventeen patients undergoing elective surgery were monitored perioperatively with the CIABG system (PB3300; Puritan Bennett, Carlsbad, CA). Conventional laboratory blood gas analyses (BGA) were performed simultaneously whenever indicated, a...

Two respiratory physiotherapy methods were evaluated by analyzing changes in the transcutaneous partial pressure of CO2 (tcPCO2) in 15 patients with respiratory insufficiency. All were receiving continuous oxygen therapy and had CO2 retention. The physiotherapy methods compared were thoracic compression (TC) and positive expiratory pressure (PEP). The mean decrease (+/- SD) in tcPCO2 was the sa...

Close monitoring of the balance between oxygen demand and supply is of great importance during cardiac cardiopulmonary bypass (CPB) surgery. This study was to compare conventional intermittent venous blood gas monitoring with continuous transcutaneous oxygen and carbon dioxide monitoring in infant patients undergoing cardiac surgery with CPB. According to paired data from 29 infant patients und...

monitoring is an essential and inseparable tool for every industrial automation system.  in advanced monitoring, in addition to representation of the process conditions, fast identification and removing of the faults in different critical parts of the system is indispensable. distributed control systems (dcs) are an integral part of the current automation systems and hence, advanced monitoring ...

background: the use of nanotechnology has led to rapid growth in various areas. thus, health and safety issues of nanoparticles (nps) should be promptly addressed. manganese oxide (mno2) nanoparticles (nps) are typically used for biomedical and industrial applications. however, characterizing the potential human health effects of mno2 nps is required before fully exploiting these materials. the...