STUDIES ON CONTINUOUS POSITIVE AIRWAY PRESSURE BREATHING SYSTEMS

Studies on continuous positive airway pressure breathing systems.

A study was undertaken to compare CPAP/IMV systems shown to be in common use in the U.K. The most frequently used system (Servo 900B) has characteristics which are likely to increase the work of breathing. Recommendations are made regarding the theoretically most acceptable systems.

Intraocular Pressure during Continuous Positive Airway Pressure

CLINICAL INVESTIGATIONS Mechanical Work on the Lungsand Work of Breathing with Positive End-Expiratory Pressure and Continuous Positive Airway Pressure*

The mechanical work on the lung required during spontaneous breathing with positive end-expiratory pres sure (PEEP) was compared with different methods of continuous positive airway pressure (CPAP) in nine young healthy athletes (surfers) at levels of 5, 10, 15, and 20 cm H20. At the level of 20 cm H20, PEEP increased the mean total work per minute by 116 per cent and the total work per liter b...

Using tracheal pressure to trigger the ventilator and control airway pressure during continuous positive airway pressure decreases work of breathing.

STUDY OBJECTIVE We evaluated the difference in work of breathing (WOB) during spontaneous ventilation with continuous positive airway pressure (CPAP) among three methods of triggering the ventilator: conventional pressure triggering, tracheal pressure triggering, and flow-by triggering. METHODS In an in vitro model of the respiratory system consisting of a bellows (lungs) in a plastic caniste...

Effects of continuous positive airway pressure on respiratory mechanics and breathing pattern in healthy individuals

Introduction Variable levels of positive end expiratory pressure (PEEP) are widely used during mechanical ventilation or during spontaneous breathing for acute or chronic lung diseases. In this study, respiratory indirect plethysmography (RIP), electromyography (EMG) of the transversus abdominis and scalene muscles and indirect calorimetry are used to achieve an integrated picture of the change...