INACCURACY OF OESOPHAGEAL PRESSURE FOR PLEURAL PRESSURE ESTIMATION IN SUPINE ANAESTHETIZED SUBJECTS

Intra-Pleural Pressure

Tire Inflation Pressure Estimation Using Identification Techniques

In this research study, one of the most crucial automotive engineering problems is intended to be solved. The necessity of tire pressure monitoring system is beyond doubt. Such systems are now provided relying on expensive sensors. In this study an indirect tire pressure monitoring system is proposed, utilizing identification techniques, which will reduce the cost of monitoring considerably in ...

Oesophageal pressure measurements in ventilated preterm babies

Sir, Drs Greenough and Morley' conclude that very little ventilator pressure is transmitted to the oesophageal balloon in paralysed babies because of low lung compliance, and support this by showing lack of transmission to chest drains inserted in 2 babies with pneumothorax. Although this fits well with their other observations, they did not say whether there was any intrapleural air remaining ...

Oesophageal pressure measurements in ventilated preterm babies.

Oesophageal pressure measured with an air-filled, thin latex balloon on a 6 French gauge catheter can accurately measure intraoesophageal pressures in ventilated preterm babies. Intraoesophageal pressures and intrapleural pressures are equivalent. Less than 10% of the applied positive ventilator pressure is transmitted to the oesophageal balloon and the intrapleural catheter (intercostal drain)...

Effect of esmolol on positive-pressure ventilation-induced variations of arterial pressure in anaesthetized humans.

Positive-pressure ventilation-induced variations in arterial pressure have been related to cardiac sympathetic activity in animals. However, the effect of beta-adrenoceptor blockade on these variations in anaesthetized humans under positive-pressure ventilation has not yet been investigated. In the present study, RAPV (respiratory-related arterial pressure variability) and %SPV (percentile syst...