Remifentanil added to sufentanil-sevoflurane anesthesia suppresses hemodynamic and metabolic stress responses to intense surgical stimuli more effectively than high-dose sufentanil-sevoflurane alone

Table 2 Values of surgical Pleth index and electrodermal response

	Study group	Control group	p*
	n = 32	n = 30
SPI
Before surgery before Intubation	42 ± 14	42 ± 17	0.99
after Intubation	53 ± 14^†	58 ± 17^†	0.23
During surgery
before sternotomy	35 ± 12	29 ± 18	0.13
during sternotomy	40 ± 15	58 ± 14^†	<0.001
EDR (n (%))
responders to intubation	12 (36%)	12 (39%)	0.86
responders to sternotomy	12 (37%)	24 (81%)	<0.001

(SPI = Surgical Pleth Index; EDR = electrodermal response, means ± standard deviation).
*Comparison of study vs. control group.
^†Comparison before intervention vs. after intervention.

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