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[Trans-cerebral electric analgesia: reality, hypothesis or placebo? (author's transl)].

Sixty patients undergoing major digestive surgery received the same amount of drugs for induction of anesthesia; neuroleptic, morphinomimetic and pachycurares were used and calculated in mg/kg. A randomisation list permitted to define 45 patients who received in double blind (by means of a long electrical cord), an electrical current varying for each protocol; the control group (15 patients) did not receive an electrical current. Statistical study of the amount of drugs used for follow of anesthesia shows no real effect of electrical analgesia for digestive surgery.