Abstract
The practice of anesthesia has changed perceptibly over the past decades. The use of inflammable anesthetics has dwindled. Supplementation of nitrous oxide with narcotics or other intravenous anesthetics has gained popularity. Administration of light levels of general anesthesia seems to be the mode. Because of these light levels, the actions of anesthetics on various organs are often attenuated by autonomic and endocrinologic responses to anesthetic and surgical manipulations.Heart and CirculationAll inhalational anesthetics currently being used, including nitrous oxide, depress myocardial function. Measured with a variety of techniques, the depressant effect of potent anesthetics such as halothane, enflurane, isoflurane, . . .