Intraoperative burst suppression is associated with postoperative delirium following cardiac surgery: a prospective, observational study

Table 3 Intraoperative parameters

		Patients		p-value
		With delirium	Without delirium
Duration of surgery	[min]	321 ± 69	326 ± 74	0.768
CPB time	[min]	131 ± 33	129 ± 35	0.786
Anaesthetic agents
Sufentanil (total dose)	[μg]	406 ± 97	417 ± 106	0.679
Isoflurane (average)	[etVol %]	0.7 ± 0.1	0.7 ± 0.1	0.679
Average arterial blood pressure
Intraoperatively	[mmHg]	87.8 ± 7.0	86.6 ± 5.6	0.464
During CPB	[mmHg]	65.1 ± 5.4	62.7 ± 6.1	0.125
Average body temperature	[°C]	35.6 ± 0.4	35.6 ± 0.4	0.515

Data are displayed as mean ± std dev. CPB = cardiopulmonary bypass. No significant differences between the groups were observed for any of the above mentioned parameters.

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