Table 3.

Cardiac troponin enzyme, creatine kinase-myocardial bound, fentanyl requirements, extubation time, and length of intensive care unit stay of the studied groups

	Group PD, (n=30)	Group P, (n=30)	P
cTnI (mg/L)
T1	0.15±0.02	0.13±0.01	0.4
T2	0.20±0.1	0.50±0.1	0.005*
T3	0.9±0.1	1.7±0.1	0.01*
T4	0.95±0.1	1.8±0.1	<0.001*
CK-MB (mg/L)
T1	5.70±2.6	5.97±2.7	0.4
T2	9.77±2.6	11.75±7.6	<0.001*
T3	11.75±7.6	19.55±6.6	<0.002*
T3	15.75±5.6	25.75±2.6	<0.003*
Fentanyl required (µg/kg)	4.46±0.65	7.74±0.37	<0.001*
Extubation time (h)	5.21±3.98	9.23±3.98	<0.001*
Length of ICU stay (h)	31.6±5.8	47.9±5.2	0.005*

Data are presented as mean±SD. P<0.05 is statistically significant, *Significant statistical difference in PD group when compared to the P group. T1: Basally; T2: 15 min after unclamping of the aorta; T3: Immediate postoperative; T4: 24 h postoperative. Group P: Propofol group; Group PD: Propofol dexmedetomidine group, cTnI: Cardiac troponine, CK-MB: Creatine kinase-myocardial bound, ICU: Intensive care unit, SD: Standard deviation