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Canadian Journal of Anesthesia, Vol 5, 29-34, Copyright © 1958 by Canadian Anesthesiologists' Society

The Phrenic Reflex in Epidural Analgesia

P. R. BROMAGE MB, B.S., F.F.A.R.C.S1

1 Department of Anaesthesia, McGill University and Royal Victoria Hospital, Montreal

Reflex response to stimulation of the central portion of the diaphragm is abolished by light general anaesthesia and epidural blockade to a level below C5. The reasons for this are discussed.

Note:

Dosage for lidocaine (ml.) = [Height in inches + 10% + 3 times the number of spinal segments to be blocked above the vertebral level of injectionl] - [(Age in years ÷ 3) + 47] x 0.6 (1, p. 81).






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Copyright © 1958 by the Canadian Anesthesiologists' Society.