Table 2.

Preoperative hemodynamics and electrolytes for all the three groups

	Dopamine norepinephrine Group I	Norepinephrine-restrictive Group II	Standard hydration Group III	P
MAP (mmHg)	97.46±9.51	96.86±8.93	100.66±9.53	0.186
HR (beats/min)	79.74±10.08	81.87±12.19	80.17±10.17	0.678
Na+ (mEq.L-1)	139.23±3.41	138.67±3.97	137.97±2.84	0.308
K+ (mEq.L-1)	3.72±0.34	3.86±0.32	3.75±0.38	0.179

All values are presented as mean±SD, P>0.05 is statistically not significant. SD=Standard deviation, MAP=Mean arterial pressure, HR=Heart rate