| 英文摘要 |
Anesthesia' was first used by the Greek philosopher Dioscorides in the first century. It was defined as a 'privation of the senses' in the Encyclopaedia Britannica in 1771, and Plomley first defined anesthesia in three stages, i.e. intoxication, excitement and narcosis, and it was modified to include later 5 stages. Defining the depth of anesthesia is extremely varied and is in need of continuing search for a method to measure it. It is the state at which a patient is insensible to the stimuli during operation, particularly to surgery. |
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