Farag E, et al. - This study was implemented to test the validity of a presumption that dexmedetomidine is noninferior to propofol as regards cerebral blood flow (CBF) velocity and brain oxygenation. Findings demonstrated that during dexmedetomidine and propofol sedation, regional brain oxygenation and CBF velocity were comparably preserved, therefore, dexmedetomidine seemed a reasonable option for patients with movement disorders.