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1 From the Department of Pharmacology, University of Manchester
The mechanism by which the local anaesthetics may produce respiratory failure varies with the route by which they are exhibited. Evidence is given for a depression of the respiratory centre as the main action when the drug is absorbed into the circulation or introduced into the cisterna magna or fourth ventricle. When the drug is introduced by lumbar puncture the greater danger lies in an extension of its action to the nerve roots of the respiratory muscles, and especially to the phrenic roots.
Submitted on December 6, 1934