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Fig. 1 | BMC Veterinary Research

Fig. 1

From: Effects of isoflurane, remifentanil and dexmedetomidine on selected EEG parameters derived from a Narcotrend Monitor before and after nociceptive stimulation at different MAC multiples in cats

Fig. 1

Narcotrend Index (NI) correlation with MAC. NI values of 7 cats (6 in group ID) determined with isoflurane alone (group I, triangles), isoflurane and a constant rate infusion of remifentanil (18 μg/kg/h IV; group IR, diamonds) and with isoflurane and a constant rate infusion of dexmedetomidine (3 μg/kg/h IV; group ID, circles) at different MAC levels (0.75, 1.0 and 1.5 MAC). Prestimulation values were used for correlation analysis. The correlation coefficients for NI were − 0.68 (p = 0.0007) in group I, − 0.67 in group IR (p = 0.001) and − 0.34 in group ID (p = 0.1659) with increasing MAC level. The slopes of the best-fit linear regression lines were − 68.49 (r2 = 0.41, p = 0,0019) in group I, −99.39 (r2 = 0.58, p = < 0.0001) in group IR and − 31.35 (r2 = 0.16, p = 0.97; not significant) in group ID

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BMC Veterinary Research

ISSN: 1746-6148

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