Manual ventilation and the Humphrey ADE breathing system

Approaches to manual ventilation.

Manual ventilation is a basic skill that involves airway assessment, maneuvers to open the airway, and application of simple and complex airway support devices and effective positive-pressure ventilation using a bag and mask. An important part of manual ventilation is recognizing its success and when it is difficult or impossible and a higher level of support is necessary to sustain life. Caref...

The Breathing-Book Spontaneous breathing during artificial ventilation

Peak pressures during manual ventilation.

INTRODUCTION Manual (bag) ventilation sometimes achieves better oxygenation than does a mechanical ventilator. We speculated that clinicians might generate very high airway pressure during manual ventilation (much higher than the pressure delivered by a mechanical ventilator), and that the high airway pressure causes alveolar recruitment and thus improves oxygenation. Such high pressure might i...

Comparison of the Bain and the ADE systems during controlled ventilation in adults.

It has been suggested that Humphrey's ADE system may be an improvement on the Bain system. To compare their efficiencies we have studied 20 anesthetized adults who had controlled ventilation established with a circle absorber system at a VE sufficient to maintain normocapnia. Patients were then randomly allocated to either a Bain or an ADE system. Fresh gas flow was sufficient to keep PE'CO2 co...

Sleep-related Breathing Disorders Adaptive Servo-Ventilation

Adaptive servo-ventilation (ASV) is a form of non-invasive positive airway pressure (PAP) therapy that differs from other PAP devices. It includes features to overcome both obstructive and central sleep-disordered breathing (SDB) events. In the Treatment of Sleep-Disordered Breathing with Predominant Central Sleep Apnea by Adaptive Servo-Ventilation in Patients with Heart Failure (SERVE-HF) stu...