De l'utilisation de la lidocaine IV lors de l'intubation

Intravenous Lidocaine:
Optimal Time of  Injection before Tracheal Intubation
Stanley Tam, MD,  FRCP, Frances Chung, MD,  FRCP, and Michael Campbell, MD,  FRCP


The circulatory stimulation accompanying laryngoscopy and tracheal intubation and its attendant poten-
tial  hazards  are well  recognized. Many methods to attenuate  this  stress  response  have been  studied,
among  which  intravenous  (IV)  lidocaine  has  been popular, probably because  of  its theoretical  advan-
tages  of  suppressing cough reflex (1,2), preventing increases in intracranial pressure (3), attenuating cir-
culatory responses (4), and its antiarrhythmic properties (5). Abou-Madi et  al. (6), in  comparing two doses of intravenous lidocaine (0.75 and 1.5 mg/kg), found that the higher dose was more effective in attenuating circulatory responses to tracheal intubation. The time of injection of  IV  lidocaine for this purpose has,  however, been  either not  clearly specified (6) or chosen on an empirical basis (7). There has been no evaluation  of  the  optimal time of  injection of  IV  lidocaine for the attenuation of circulatory responses secondaryto  tracheal intubation.

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