A New System of Infiltration Anesthesia and Sedation for Plastic Surgery

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Abstract
This technique produces patient cooperation during the phase of local anesthetic injection by judicious use of intravenous ketamine. The addition of diazepam and a narcotic drug to low-dose ketamine may account for a low incidence of hallucinations and psychic sensations. The use of a dilute solution of lidocaine and a very low concentration of epinephrine allows large areas to be anesthetized. The ultralow concentration of epinephrine provides effective vasoconstriction. The result is good patient acceptance, a stable blood pressure and heart rate, and a low incidence of complications classically associated with local anesthetic toxicity.

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