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Figure 1 | BMC Anesthesiology

Figure 1

From: Investigation of the potentiation of the analgesic effects of fentanyl by ketamine in humans: a double-blinded, randomised, placebo controlled, crossover study of experimental pain[ISRCTN83088383]

Figure 1

The Antinociceptive Effect Measured using ECT. The electrical pain threshold is expressed as the mean electrical pain threshold of all volunteers (n = 10) when a steady serum concentration of the treatment drug had been achieved. These values are standardised by the threshold value at baseline in order to illustrate the difference in profiles between each treatment arm. The serum concentrations targeted are listed in Table 1 and enumerated on the abscissa using a logarithmic scale.

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BMC Anesthesiology

ISSN: 1471-2253

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