INTRODUCTION The objectives were to study the changes in the mechanics of respiration in children undergoing surgery depending on the value of intra-abdominal pressure (IAP) during laparoscopic procedures, and to compare the effects of different mechanical ventilation modes - pressure controlled (PCV) and volume controlled (VCV) ventilation - on the mechanics of respiration considering carboxyp...

DURING measurements of pressure in the small veins of a dog's hindleg, it was observed that fluctuations in pressure, associated with respiration, varied considerably from animal to animal. In some instances, venous pressure fell during the inspiratory phase; in other instances, venous pressure rose. In addition, spontaneous pressure changes, seemingly independent of respiratory movements, were...

Apnoea is compatible with life only so long as artificial respiration can be maintained. By modern methods, artificial respiration can be continued for an unlimited time, but its prolonged application may result in serious biochemical and circulatory disturbances if its form and volume are incorrect. Apnoea may result from many causes. It may be due to obstruction in the airway, to changes in t...