Work of Breathing in Fixed and Pressure Relief Continuous Positive Airway Pressure (C-Flex™): A post hoc Analysis

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...

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...

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.

Comparison of Nasal Continuous Positive Airway Pressure Therapy with and without Prophylactic Surfactant in Preterm Neonates

Background: Preterm labor is at risk for respiratory distress syndrome (RDS) and sometimes requires to mechanical ventilation (MV) and surfactant therapy. Continuous positive airway pressure (CPAP) and Nasal Continuous positive airway pressure (NCPAP) are the methods of respiratory support especially for using in RDS of neonates. In other method surfactant is administered to babies via tracheal...

Intraocular Pressure during Continuous Positive Airway Pressure