Table 1.

Anesthesia protocol used in both groups

Premedication	Midazolam 1 mg IV + fentanyl 2.5 micro g/kg IV
Induction	Propofol (1.5–2 mg/kg) + atracurium (0.5 mg/kg)
Maintenance	Propofol (5–10 mg/kg/h) +atracurium (0.5 mg/kg)every 30 min + N2O %50
If MAP < 80 mm Hg	TNG drip 0.25-0.5 micro g/kg/min till MAP<80 mm Hg