Anaesthesia
-
An investigation is described into the performance of two types of circle system used without a carbon dioxide absorber in both the laboratory and in the operating theatre with controlled ventilation. The newer system was found to be more efficient than the old but in both types of system the tidal volume was found to be very important, a large tidal volume resulted in increased efficiency. The possibility of predicting arterial blood carbon dioxide using this system is briefly discussed, and rules are suggested for the use of the system.
-
The ever increasing participation in aquatic recreational activities is a major factor in the increasing number of deaths due to accidental immersion. Some of these deaths occur while undergoing resuscitative efforts immediately following rescue, on admission to hospital, or even up to 19 days after the immersion incident. Drowning, either acute or its delayed effects, is chiefly responsible for these deaths, but in a number, hypothermia occurring alone or complicating drowning, is the likely explanation. This paper examines the problem and proposes a regime of management.