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Canadian Journal of Anesthesia, Vol 28, 125-128, Copyright © 1981 by Canadian Anesthesiologists' Society

Electro-Acupuncture Modification of Halothane Anaesthesia in the Dog

CHIN-KAI TSENG M.D.1, AYE-AYE L. TAY M.D.1, NATHAN L. PACE M.D.1, DWAYNE R. WESTENSKOW Ph.D.1, and K. C. WONG M.D., Ph.D.1

1 Department of Anesthesiology, University of Utah College of Medicine, 50 North Medical Drive, Salt Lake City, Utah 84132

Address correspondence and reprint requests to Dr. N.L. Pace, Department of Anesthesiology, University of Utah College of Medicine, 50 North Medical Drive, Salt Lake City, Utah 84132.

The effects of electro-acupuncture on minimum alveolar anaesthetic concentration (MAC) was studied during halothane anaesthesia in the dog. Following induction of anaesthesia, MAC was determined in duplicate. Ten dogs then received electro-acupuncture bilaterally at San Yin Chiao for 30 minutes. MAC was determined in duplicate while electro-acupuncture was continued. Electro-acupuncture significantly lowered MAC from 1.2 per cent to 1.0 per cent(p < 0.01). A crossover experimental design was used in an additional eleven dogs. Here MAC was lowered from 1.17 per cent to 1.04 per cent (p < 0.05). Electro-acupuncture produces a small but statistically significant reduction in halothane MAC.

Key Words: ACUPUNCTURE, modification of minimum anaesthetic concentration, (MAC) • ANAESTHETICS, volatile, halothane






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Copyright © 1981 by the Canadian Anesthesiologists' Society.