The Optimal Effect Site Concentration of Propofol for Conscious Sedation in Elderly Male Patients Undergoing Urologic Surgery Under Spinal Anesthesia With or Without Intrathecal Fentanyl

The Optimal Effect Site Concentration of Propofol for Conscious Sedation in Elderly Male Patients Undergoing Urologic Surgery Under Spinal Anesthesia With or Without Intrathecal Fentanyl

Since intrathecal fentanyl is known to sedation effect, intrathecal fentanyl will result in lowering propofol requirement for conscious sedation under spinal anesthesia.

Inclusion Criteria:

• elderly male patients undergoing urologic surgery under spinal anesthesia

Exclusion Criteria:

• patients with any co-morbidity