1. Abdelkareim AS, Al-Mustafa MM, Al Ajlouni JM, Mas’ ad DF, Hamdan MQ, Alghanem SM, Qudaisat IY, Abu Halaweh SA, Massad IM (2011) Intravenous dexmedetomidine or propofol adjuvant to spinal anaesthesia in total knee replacement surgery. J Med J 45:174–183
2. Aldrete JA (1995) The post anesthesia recovery score revisited. J Clin Anesth 7:89–91
3. Arain SR, Ebert TJ (2002) The efficacy, side effects, and recovery characteristics of dexmedetomidine versus propofol when used for intraoperative sedation. Anesth Analg 95:461–466
4. Baker KC, Sert PRI (1997) Anesthetic considerations for childen undergoing stereotactic radiosurgery. Anaesth Intensive Care 25:691–695
5. Balakrishnan G, Raudzens P, Samra SK, Song K, Boening JA, Bosek V, Jamerson BD, Warner DS (2000) A comparison of remifentanil and fentanyl in patients undergoing surgery for intracranial mass lesions. Anesth Analg 91:163–169