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The purpose of this study is to evaluate the effects of different dexmedetomidine on the propofol requirement for loss of consciousness undergoing bispectral index.
It has been shown that dexmedetomidine was an efficacious and safe adjuvant in general anaesthesia. Administration of dexmedetomidine during the preoperative period has been demonstrated to reduce the requirement of opioid analgesics and other sedative and hypnotic drugs.Therefore, the study is designed to measure the effect of intravenous dexmedetomidine premedication on the propofol dose requirement and bispectral index at loss of consciousness.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Group control | Placebo Comparator | 24 eligible patients are received equal volumes of saline intravenously for 10 minutes |
|
| Group dexmedetomidine 0.5 µg/kg | Active Comparator | 24 eligible patients are received dexmedetomidine 0.5 µg/kg intravenously for 10 minutes |
|
| Group dexmedetomidine 1.0 µg/kg | Active Comparator | 25 eligible patients are received dexmedetomidine 1.0 µg/kg intravenously for 10 minutes |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| normal saline | Other | receive equal volume of normal saline |
| |
| Measure | Description | Time Frame |
|---|---|---|
| The propofol requirement for pretreatment of dexmedetomidine by micro-pump until loss of consciousness | To infuse dexmedetomidine and saline completely ten minutes after |
| Measure | Description | Time Frame |
|---|---|---|
| The bispectral index values when patients loss of consciousness | To infuse dexmedetomidine and saline completely ten minutes after |
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Inclusion Criteria:
Exclusion Criteria:
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| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 32334510 | Derived | Gu Y, Yang F, Zhang Y, Zheng J, Wang J, Li B, Ma T, Cui X, Lu K, Ma H. The effects of different doses of dexmedetomidine on the requirements for propofol for loss of consciousness in patients monitored via the bispectral index: a double-blind, placebo-controlled trial. BMC Anesthesiol. 2020 Apr 25;20(1):96. doi: 10.1186/s12871-020-01013-x. |
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safety
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| dexmedetomidine 0.5 µg/kg |
| Drug |
receive dexmedetomidine 0.5 µg/kg |
|
| dexmedetomidine 1.0 µg/kg | Drug | receive dexmedetomidine 1.0 µg/kg |
|
| ID | Term |
|---|---|
| D014474 | Unconsciousness |
| ID | Term |
|---|---|
| D003244 | Consciousness Disorders |
| D019954 | Neurobehavioral Manifestations |
| D009461 | Neurologic Manifestations |
| D009422 | Nervous System Diseases |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
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| ID | Term |
|---|---|
| D000077330 | Saline Solution |
| D020927 | Dexmedetomidine |
| ID | Term |
|---|---|
| D000077324 | Crystalloid Solutions |
| D007552 | Isotonic Solutions |
| D012996 | Solutions |
| D004364 | Pharmaceutical Preparations |
| D007093 | Imidazoles |
| D001393 | Azoles |
| D006573 | Heterocyclic Compounds, 1-Ring |
| D006571 | Heterocyclic Compounds |
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