Abstract
Patient (37 years old, Female) is no sooner sprayed in pharynx and larynx 4%-Lidocaine in order to inlet Metras's sonde in trachea, than she falled into convulsion (tonic, clonic), dyspnea and cyanosis. And died after three hours in spite of many effective emergency treatment.
As considerable cause:
(a) Hepatic insufficiency (For the patient has long taken PAS, INAH)
(b) Depravation of general appearence (For the patient has long suffered pulmonary tuberuclosis)
