Table 2.

Intraoperative patient data.

Characteristic	All patients(n = 59)	Group I(n = 38)	Group II (n = 21)	p value(Groups I and II)
Averaged duration of cardiopulmonary bypass, min	87 ± 20	86 ± 17	88 ± 25	0.7
Averaged aortic cross-clamping duration, min	44 ± 14	42 ± 11	47 ± 17	0.2
Hb, g/L	99.8 ± 12	100 ± 13	97 ± 10	0.3
Hct, %	29.9 ± 3.7	30 ± 4	29 ± 3	0.5

Data in the table are presented as mean ± standard deviation. Hb, hemoglobin; Hct, hematocrit; Group I, patients who had no decrease in regional cerebral oxygen saturation; Group II, patients who had a ≥20% decrease in regional cerebral oxygen saturation.