Morphine Fentanyl Significance
Type of the operation Mitral Valve Replacement 11 (73%) 13 (87%) N.S
Aortic Valve Replacement 4 (27%) 2 (13%)
Bypass time (min) 151 ± 38 148 ± 32
Cross -Clamping time (min) 120.6 ± 38.2 123.8 ± 30.5
Surgery duration(min) 396 ± 63.79 354.33 ± 52.3
Fluid transfusion (ml) 3617 ± 489.8 3557 ± 425.4
Blood transfusion (units) 2 (2-3) 2 (1-3)
Plasma transfusion (units) 0 (0-3) 0 (0-2)
Data presented as median (interquartile range), frequency (%). P value by Kruskall-Wallis. Intergroup differences (p<0.05) by Tukey’s test after log transformation: (N.S=Non Significant)
Table 2: Operative data in the two studied groups.