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The investigator had no more scientific interest about this issue.
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Loading dose of dexmedetomidine is related hemodynamic instability such as bradycardia and hypertension.
The investigators hypothesized substitution of loading of dexmedetomidine for midazolam could reduce hemodynamic instability during spinal anesthesia for knee arthroscopy.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| dexmedetomidine group | Active Comparator | dexmedetomidine 1 mcg/kg intravenous loading followed by dexmedetomidine continuous infusion at the rate of 0.5 mcg/kg/hr |
|
| midazolam group | Experimental | midazolam 0.1 mg/kg intravenous loading followed by dexmedetomidine continuous infusion at the rate of 0.5 mcg/kg/hr |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| dexmedetomidine group | Drug | intravenous loading of dexmedetomidine for 1 mcg/kg |
|
| Measure | Description | Time Frame |
|---|---|---|
| change of heart rate | from 1 minute before anesthesia to 1 hr after anesthesia |
| Measure | Description | Time Frame |
|---|---|---|
| change of bispectral index | from 1 minute before anesthesia to 1 hr after anesthesia |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Seong-Hyop Kim, Professor | Konkuk University Medical Center | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Konkuk University Medical Center | Seoul | 143-729 | South Korea |
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| ID | Term |
|---|---|
| D007718 | Knee Injuries |
| ID | Term |
|---|---|
| D007869 | Leg Injuries |
| D014947 | Wounds and Injuries |
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| ID | Term |
|---|---|
| D020927 | Dexmedetomidine |
| D008874 | Midazolam |
| ID | Term |
|---|---|
| D007093 | Imidazoles |
| D001393 | Azoles |
| D006573 | Heterocyclic Compounds, 1-Ring |
| D006571 | Heterocyclic Compounds |
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| midazolam group | Drug | intravenous loading of midazolam for 0.1 mg/kg |
|
|
| D001569 |
| Benzodiazepines |
| D001552 | Benzazepines |
| D006574 | Heterocyclic Compounds, 2-Ring |
| D000072471 | Heterocyclic Compounds, Fused-Ring |