Table 4.

Anesthetic variables by mode of ventilation

Anesthetic variable	VC	PC	PCV-VG
BIS Value (0-100)	48 ± 8	47 ± 7	46 ± 6
Remifentanil infusion rate (mcg/kg/minute)	0.13 ± 0.06	0.14 ± 0.06	0.12 ± 0.05
End-tidal desflurane concentration (%)	4.1 ± 1.0	4.2 ± 0.8	4.2 ± 0.9

VC = volume-controlled; PC = pressure-controlled; PCV-VG = pressure-controlled ventilation, volume guaranteed. The data are listed as the mean ± SD. For the anesthetic variables, the value at each 5 minute interval was averaged to provide a single data point for each patient. P = NS for all variables and each mode of ventilation.