Figure 1From: Comparison of sufentanil with sufentanil plus magnesium sulphate for sedation in the intensive care unit using bispectral indexHourly consumption of sufentanil. Group 1 (n = 15) received sufentanil infusion alone, whereas group 2 (n = 15) received sufentanil plus magnesium sulphate. Data are expressed as means ± standard deviation. *P < 0.001, group 1 versus group 2.Back to article page