Intrathecal Morphine in Robot-assisted Prostatectomy

The Efficacy of Intrathecal Morphine in Patients Undergoing Robot-assisted Prostatectomy

This study will investigate the efficacy and safety of intrathecal morphine for the patients undergoing robot-assisted prostatectomy

Prostatectomy is the treatment of choice for prostate cancer. The robot-assisted prostatectomy is becoming the most popular surgical method for prostate cancer. The small incision after robot-assisted prostatectomy is thought to reduce the postoperative pain. There is few investigations for the strategy to reduce the postoperative pain of robot-assisted prostatectomy.

The intrathecal morphine injection is known to reduce postoperative pain for surgeries like hepatectomy, myomectomy and open prostatectomy. This method, however, is not yet studied for the robot-assisted prostatectomy. This study will investigate the efficacy and safety of intrathecal morphine for the patients undergoing robot-assisted prostatectomy.

Inclusion Criteria:

• Patients scheduled for the open nephrectomy

Exclusion Criteria:

• Patients with renal insufficiency
• Patients with coagulopathy
• History of any neurologic disorder
• History of recent infection in 2 weeks
• History of drug abuse
• Patients who cannot understand the usage of th intravenous patient-controlled analgesia
• Patients using opioids due to the chronic pain