Patients with chronic obstructive pulmonary disease (COPD) may incur exercise limitation by any one or combination of disturbances in breathing mechanics, oxygen transport, respiratory muscle metabolism or respiratory regulation and sensation. In spite of the increased ventilation demand/capacity ratio in these patients, the relationship between breathing mechanics, respiratory muscle fatigue, ...

BACKGROUND AND OBJECTIVES Pleural pressure has to be known for the partitioning of respiratory system mechanical measurements into their lung and chest wall components. This review aimed at discussing alternative methods to obtain pleural pressure to calculate pulmonary mechanics, at reporting peculiarities of the esophageal balloon method for obtaining indirect pleural pressure, peculiarities ...

Based on prior data, the current authors hypothesised that beneficial pronation effects on gas exchange and respiratory mechanics might be maximised in severely hyperinflated chronic bronchitis patients. The current authors also sought to elucidate underlying mechanisms and to determine whether pronation effects are reflected by postural changes in inspiratory pressure-volume (P-V) curve charac...

Noninvasive monitoring of respiratory mechanics during sleep. R. Farré, J.M. Montserrat, D. Navajas. #ERS Journals Ltd 2004. ABSTRACT: The sleep apnoea–hypopnoea syndrome is characterised by recurrent obstructions of the upper airway, resulting in sleep disruption and arterial oxygen desaturations. Noninvasive assessment of respiratory mechanics during sleep is helpful in facilitating the diagn...

Background: Positive end-expiratory pressure (PEEP) is widely used to reduce the risk of hypoxemia and atelectasis during one-lung ventilation (OLV); however, optimal strategy for PEEP titrating remains unclear. The purpose study was investigate effects different strategies on oxygenation respiratory mechanics OLV.

HYPOTHESIS We hypothesized that there might be different effects on breathing control and respiratory mechanics after laparoscopic vs open cholecystectomy. DESIGN Randomized clinical trial. SETTING A general hospital in Greece. PATIENTS Of 53 patients assessed for eligibility, 18 and 10 were randomly allocated to the laparoscopic and open cholecystectomy groups, respectively. These 28 pat...

OBJECTIVE To analyze parameters of respiratory system mechanics and oxygenation and cardiovascular alterations involved in weaning tracheostomized patients from long-term mechanical ventilation after cardiac surgery. METHODS We studied 45 patients in their postoperative period of cardiac surgery, who required long-term mechanical ventilation for more than 10 days and had to undergo tracheosto...