Table 3.

Hemodynamic variables in the three groups.

Groups	Group C (n = 30)	Group P (n = 30)	Group F (n = 30)	P
MAP 5 min before SA	97.23 ± 7.62	94.76 ± 8.82	95.05 ± 5.36	NS
MAP 2 min after SA	73.25 ± 17.46	85.78 ± 11.13	74.76 ± 15.95	0.003
MAP 4 min after SA	69.54 ± 15.39	79.57 ± 11.69	74.93 ± 13.71	0.021
MAP 6 min after SA	89.84 ± 34.82	73.98 ± 13.39	82.12 ± 12.61	0.030
MAP 8 min after SA	91.72 ± 20.19	79.08 ± 13.00	87.54 ± 10.57	0.006
MAP 10 min after SA	92.96 ± 16.70	75.63 ± 12.55	89.11 ± 7.93	<0.001
MAP 15 min after SA	92.52 ± 17.22	78.92 ± 11.95	92.66 ± 9.09	0.001
MAP 20 min after SA	87.20 ± 15.81	78.14 ± 8.94	107.70 ± 76.69	0.041
MAP 25 min after SA	83.64 ± 17.55	75.21 ± 9.31	86.38 ± 4.66	0.001
MAP 30 min after SA	78.43 ± 13.34	66.58 ± 8.87	89.73 ± 5.56	<0.001
HR 5 min before SA	99.40 ± 11.88	97.90 ± 15.40	98.73 ± 13.61	NS
HR 2 min after SA	96.46 ± 16.05	101.20 ± 19.13	101.73 ± 16.15	NS
HR 4 min after SA	89.13 ± 13.62	96.46 ± 17.38	97.26 ± 15.03	NS
HR 6 min after SA	87.50 ± 13.43	97.16 ± 19.61	98.90 ± 17.58	0.024
HR 8 min after SA	84.40 ± 10.87	95.06 ± 20.14	92.73 ± 17.36	0.037
HR 10 min after SA	87.36 ± 13.29	96.23 ± 22.76	91.70 ± 13.68	NS
HR 15 min after SA	83.46 ± 10.48	101.76 ± 17.82	89.13 ± 14.32	<0.001
HR 20 min after SA	85.56 ± 12.38	102.26 ± 20.37	88.26 ± 14.49	<0.001
HR 25 min after SA	88.73 ± 11.46	99.50 ± 18.04	90.86 ± 12.33	0.011
HR 30 min after SA	86.76 ± 9.20	97.83 ± 17.07	89.50 ± 11.36	0.004

Data are presented as mean ± SD. C: clonidine, F: fentanyl, P: placebo, MAP: mean arterial blood pressure (mm Hg), HR: heart rate (bpm), SA: spinal anesthesia, and NS: nonsignificant.