In the light of our present knowledge of practical anesthesia, it is not justifiable to employ any one anesthetic exclusively. The safest anesthesia depends on (1) the choice of the anesthetic best adapted to the individual case; (2) the technic of preparation for and administration of the anesthetic, and (3) a skilful anesthetizer. In a considerable proportion of operative cases the life of the patient depends on the proper choice of the anesthetic and the management of the anesthesia. The recent advances in our knowledge of local and neuroregional anesthesia have materially narrowed the field of general anesthesia.
Almost every kind of operation has been attempted, and more or less successfully performed, under local or neuroregional anesthesia. However, the mere fact that an operation can be performed under local or regional anesthesia is not sufficient justification to do it. The shock to some individuals from even trivial operations under