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Anesth Analg 1977; 56:678-685
© 1977 International Anesthesia Research Society
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Electroanesthesia (EA) Studies

Current Applications to Human Volunteers to Produce General and Local Anesthesia

ROBERT H. SMITH, MD*, TATSUHIKO KANO, MD{dagger}, GEORGE S. M. COWAN, MD{ddagger}, and RICHARD E. BARBER, MD§

*Professor Emeritus, Department of Anesthesia, University of California, San Francisco. {dagger}Associate Professor, Department of Anesthesiology, Kumumoto Medical School, Kumumoto, Japan. {ddagger}Lt Colonel and Chief of General Surgery and Clinical Investigation, Dwight D. Eisenhower Army Medical Center, Fort Gordon, Georgia. §Associate Clinical Professor, Department of Anesthesia, University of California, San Francisco, California 94110.

Abstract

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.






Lippincott, Williams & Wilkins Anesthesia & Analgesia® is published for the International Anesthesia Research Society® by Lippincott Williams & Wilkins with the assistance of Stanford University Libraries' HighWire Press®. Copyright 2006 by the International Anesthesia Research Society. Online ISSN: 1526-7598   Print ISSN: 0003-2999 HighWire Press
Copyright © 1977 by the International Anesthesia Research Society.