Spinal Stenosis
Conditions
Brief summary
Surgical stress induces stress hormone release and sympathetic hyperactivation. Dexmedetomidine has sympatholytic effect and attenuates stress responses. This study investigate the effect of dexmedetomidine on stress responses and autonomic nervous system balance in patients undergoing major spine surgery.
Interventions
dexmedetomidine infusion (0.4 mcg/kg/h) from immediately after anesthetic induction to end of surgery
0.9% saline infusion
Sponsors
Study design
Eligibility
Inclusion criteria
* patient between 20 and 70 of age with ASA physical status Ⅰ-Ⅲ * patient scheduled for major spine surgery
Exclusion criteria
* ASA physical status Ⅳ * congestive heart failure * severe hepatorenal disease * insulin dependent DM(diabetes mellitus) * cancer or metastasis * pregnancy * problem with communication
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Stress hormone level | immediately after anesthetic induction | The levels of stress hormone including epinephrine, norepinephrine, cortisol, and glucose will be measured during spinal surgery. |
Countries
South Korea