Effect of Perioperative i.v. Low-dose S(+) Ketamine

About This Study

The purpose of this study is to determine whether the use of perioperative intravenous S (+) ketamine reduces the amount and degree of postoperative pain. Furthermore the purpose of this study is to determine whether the use of perioperative intravenous S (+) ketamine effects cognitive function in the early postoperative period.

Conditions Studied

Interventions

• •S (+) Ketamine
• •Placebo

Eligibility

Inclusion Criteria:

* Clinical diagnosis of disc prolapse
* Age 18+
* ASA (American Society in Anesthesiology) I-II
* written consent

Exclusion Criteria:

* Age \< 18
* ASA \> II
* liver failure
* renal failure
* heart failure
* glaucoma
* pregnancy

Study Locations (1)