Table 2 . Hemodynamic changes (SBP, DMP, MAP and HR) at different stages of anesthesia in all groups .

	Groups	Before anesthesia	After anesthesia	P	Before LMA	After LMA	P
SBP	P	122.7 ± 19.2	104.6± 22.9	0.000	102.5 ± 14.4	99.4 ± 12.9	0.07
	E	131 ± 18.2	121.7 ± 14.9	0.326	111.1 ± 23.8	109.4 ± 15.8	0.231
	P+E	129.1 ± 5/16	117.4 ± 18.5	0.023	110.2 ± 14.5	110.8 ± 19.2	0.723
DBP	P	76.2 ± 10.1	64.7 ± 12.3	0.000	63.5 ± 14.1	59.4 ± 12.8	0.002
	E	80.5 ± 9.3	74.1 ± 9.2	0.010	69.7 ± 10.2	65.9 ± 11.3	0.000
	P+E	78 ± 11.1	72.2 ± 12.5	0.001	66 ± 12.7	65.8 ± 17	0.022
MAP	P	90 ± 10.89	77.4 ± 12.3	–	75.2 ± 15.1	73.3 ± 17.6	0.307
	E	97.6 ± 9.7	89.6 ± 11.4	–	84.3 ± 10.7	78.7 ± 8.6	0.020
	P+E	95.4 ± 12.8	86.5 ± 12	–	80.3 ± 12.2	80.7 ± 17.6	0.015
HR	P	78.2 ± 13.9	73.2 ± 13.3	0.019	70.9 ± 11.3	69.6 ± 11.5	0.000
	E	80.4 ± 18.7	82.4 ± 15.3	0.035	73.6 ± 14.6	66.8 ± 10.7	0.000
	P+E	82.9 ± 18.9	81 ± 17.2	0.563	71.8 ± 15.9	73.7 ± 12.1	0.007
Data are presented as Mean ± SD.