Efficacy of Phentolamine in Prevention of Contrast-Associated Acute Kidney Injury After Complex PCI

In addition to the conventional management, patients will receive phentolamine (Rogitamine; Egypharma) infusion at a rate of 0.5 μgm/kg/min for the first 15 minutes after a bolus dose of 5 mg. If significant hemodynamic change occurred, the infusion then will be discontinued and the patient will be excluded. Otherwise, the dose will be uptitrated gradually 0.5-2 ugm/kg/min and the infusion will be continue for 12 hours.