Intravenous infusion of midazolam, propofol and vecuronium in a patient with severe tetanus

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Abstract
An adult patient with severe tetanus was successfully treated with alternating long-term infusions of propofol (20-80 mg/h, 8 + 3 days) and midazolam (5-15 mg/h, 29 days) for sedation, and with vecuronium infusion (6-8 mg/h, 35 days) for muscle relaxation. In addition, continuous infusion of labetalol (10-20 mg/h, 39 days) was given to control arterial blood pressure. Blood samples were taken daily for assays of propofol, midazolam and vecuronium plasma concentrations. No accumulation of propofol and vecuronium could be detected. There was an increase in liver enzyme activity at the end of the first 8-day propofol infusion. During the 4-week midazolam infusion, there were two marked plasma concentration peaks at times when the infusion rate was fairly stable. These changes coincided with pulmonary infection (C-reactive protein elevated) and ciprofloxacin treatment. The patient awoke rapidly after the last propofol infusion. He was unable to recall anything about his stay in the intensive care unit.