Table 5.

Univariate comparison between high- and low-lactate clearance groups

Parameter	High lactate clearance (n=108)	Low lactate clearance (n=41)	P
Age (years)	3.08±1.39	2.62±096	0.06
Weight (kg)	9.72±3.12	9.41±2.61	0.57
Gender (male/female)	70/38	27/14	0.89
Height (cm)	87.53±5.35	88.80±5.53	0.20
Preoperative hemoglobin (g/100 mL)	20.24±2.03	19.82±1.71	0.09
Preoperative oxygen saturation (%)	74.82±6.62	76.12±7.35	0.32
Beta blocker	98 (90.7)	38 (92.7)	0.07
Preoperative coiling	17 (15.7)	15 (36.6)	0.007*
CPB time (min)	89.01±9.033	93.63±8.05	0.09
Clamp time (min)	62.68±4.07	64.05±5.113	0.12
Temperature on CPB (centigrade)	29.91±0.22	29.93±0.23	0.87
Urine output on CPB (mL)	150.85±16.03	151.19±17.09	0.55
CUF (mL)	78.37±9.18	79.69±7.97	0.52
Hematocrit on CPB (%)	33.86±1.91	33.38±2.44	0.41
Duration of inotropic support (h)	24.19±13.28	30.78±18.49	<0.001*
Vasoactive inotropic score	6.247±4.18	12.34±5.69	<0.001*
Vasopressor use (%)	8 (7.4)	9 (22)	0.02*
Duration of mechanical ventilation (h)	11.29±4.73	14.56±6.73	<0.001*
Duration of ICU stay (h)	48.85±7.26	66.64±25.46	0.004*
Mortality	2 (1.9)	9 (22)	0.03*
Lactate (T0)	1.65±0.51	1.59±0.4	0.48
Initial lactate (T1)	4.65±1.07	4.78±0.93	0.47
Lactate at 6 h (T6)	3.40±1.01	4.57±0.82	0.001*
Lactate at 12 h (T12)	3.11±1.01	4.37±0.92	0.001*
Lactate at 18 h (T18)	2.89±0.98	4.27±1.08	0.001*
Lactate at 24 h (T24)	2.4±1.02	4.25±1.34	0.001*
Mean postoperative lactate	3.29±0.87	4.4±0.96	0.001*

*P<0.05 is significant. Values are expressed as mean±SD. P<0.05 is considered significant. CPB: Cardiopulmonary bypass, ICU: Intensive Care Unit, SD: Standard deviation, CUF: Conventional ultrafiltration