Smith R H, Kano T, Cowan G S, Barber R E
Anesth Analg. 1977 Sep-Oct;56(5):678-85.
Electrical currents found to be of sufficient intensity to produce EA in animals were applied to human subjects several hundred times, to determine whether, and how, clinical general anesthesia, and local anesthesia in various parts of the body, could be obtained. General anesthesia was not produced in any subject in any test, the obstacle in every instance being pain. Local analgesia of the arm was obtained in one subject, but in all other subjects muscle spasm and vibration pain prevented application of enough current to produce analgesia or anesthesia in the arm. Anesthesia of the hand was produced several times in all subjects, with a total loss of pain sensation.
人们将被发现强度足以在动物身上产生电针麻醉的电流数百次应用于人体受试者，以确定是否能够以及如何获得临床全身麻醉以及身体各部位的局部麻醉。在任何一次测试中，任何受试者都未产生全身麻醉，每次的障碍都是疼痛。有一名受试者的手臂获得了局部镇痛效果，但在所有其他受试者中，肌肉痉挛和震动疼痛使得无法施加足够的电流来在手臂上产生镇痛或麻醉效果。在所有受试者中，手部麻醉产生了几次，疼痛感完全消失。
