ED50 and ED95 of Intrathecal Bupivacaine With or Without Epinephrine for Total Knee Replacement Arthroplasty
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This prospective randomized double-blind dose-response study is aimed to investigate the ED50 and ED95 of intrathecal bupivacaine with or without epinephrine 100 mcg for total knee replacement arthroplasty.
Condition | Intervention |
---|---|
Spinal Anesthesia Total Knee Replacement Arthroplasty |
Drug: intrathecal bupivacaine 6 mg with 100 mcg of epinephrine Drug: intrathecal bupivacaine 7 mg with 100 mcg of epinephrine Drug: intrathecal bupivacaine 8 mg with 100 mcg of epinephrine Drug: intrathecal bupivacaine 9 mg with 100 mcg of epinephrine Drug: intrathecal bupivacaine 10 mg with 100 mcg of epinephrine Drug: intrathecal bupivacaine 11 mg with epinephrine 100 mcg Drug: intrathecal bupivacaine 6 mg with 200 mcg of epinephrine Drug: intrathecal bupivacaine 7 mg with 200 mcg of epinephrine Drug: intrathecal bupivacaine 8 mg with 200 mcg of epinephrine Drug: intrathecal bupivacaine 9 mg with 200 mcg of epinephrine Drug: intrathecal bupivacaine 10 mg with 200 mcg of epinephrine Drug: intrathecal bupivacaine 11 mg with 200 mcg of epinephrine |
Study Type: | Interventional |
Study Design: | Allocation: Randomized Endpoint Classification: Efficacy Study Intervention Model: Parallel Assignment Masking: Double Blind (Subject, Outcomes Assessor) |
Official Title: | ED50 and ED95 of Intrathecal Bupivacaine With or Without Epinephrine for Total Knee Replacement Arthroplasty |
- the success of anesthesia [ Time Frame: during the surgery (average two hours) ] [ Designated as safety issue: No ]The individual dose would be considered to be successful if no epidural supplement is required during surgery.
- Adverse effects of the various intrathecal bupivacaine dose [ Time Frame: during surgery (average two hours) ] [ Designated as safety issue: Yes ]lowest systolic blood pressure, vasopressure requirements, nausea, vomitting
Enrollment: | 162 |
Study Start Date: | December 2009 |
Study Completion Date: | January 2011 |
Primary Completion Date: | January 2011 (Final data collection date for primary outcome measure) |
Arms | Assigned Interventions |
---|---|
Experimental: BPV6E1 |
Drug: intrathecal bupivacaine 6 mg with 100 mcg of epinephrine
intrathecal bupivacaine 6 mg with 100 mcg of epinephrine
Other Names:
|
Experimental: BPV7E1 |
Drug: intrathecal bupivacaine 7 mg with 100 mcg of epinephrine
intrathecal bupivacaine 7 mg with 100 mcg of epinephrine
Other Names:
|
Experimental: BPV8E1 |
Drug: intrathecal bupivacaine 8 mg with 100 mcg of epinephrine
intrathecal bupivacaine 8 mg with 100 mcg of epinephrine
Other Names:
|
Experimental: BPV9E1 |
Drug: intrathecal bupivacaine 9 mg with 100 mcg of epinephrine
intrathecal bupivacaine 9 mg with 100 mcg of epinephrine
Other Names:
|
Experimental: BPV10E1 |
Drug: intrathecal bupivacaine 10 mg with 100 mcg of epinephrine
intrathecal bupivacaine 10 mg with 100 mcg of epinephrine
Other Names:
|
Experimental: BPV11E1 |
Drug: intrathecal bupivacaine 11 mg with epinephrine 100 mcg
intrathecal bupivacaine 11 mg with epinephrine 100 mcg
Other Names:
|
Experimental: BPV6E2 |
Drug: intrathecal bupivacaine 6 mg with 200 mcg of epinephrine
intrathecal bupivacaine 6 mg with 200 mcg of epinephrine
Other Names:
|
Experimental: BPV7E2 |
Drug: intrathecal bupivacaine 7 mg with 200 mcg of epinephrine
intrathecal bupivacaine 7 mg with 200 mcg of epinephrine
Other Names:
|
Experimental: BPV8E2 |
Drug: intrathecal bupivacaine 8 mg with 200 mcg of epinephrine
intrathecal bupivacaine 8 mg with 200 mcg of epinephrine
Other Names:
|
Experimental: BPV9E2 |
Drug: intrathecal bupivacaine 9 mg with 200 mcg of epinephrine
intrathecal bupivacaine 9 mg with 200 mcg of epinephrine
Other Names:
|
Experimental: BPV10E2 |
Drug: intrathecal bupivacaine 10 mg with 200 mcg of epinephrine
intrathecal bupivacaine 10 mg with 200 mcg of epinephrine
Other Names:
|
Experimental: BPV11E2 |
Drug: intrathecal bupivacaine 11 mg with 200 mcg of epinephrine
intrathecal bupivacaine 11 mg with 200 mcg of epinephrine
Other Names:
|
Detailed Description:
Patients undergoing total knee replacement arthroplasty are randomly assigned to six bupivacaine dose group (6, 7, 8, 9, 10, 11 mg). Combined spinal-epidural anesthesia would be performed. The dose would be considered as successful if no epidural supplement was required during surgery. A probit analysis will be performed to calculate the ED50 and ED95 of intrathecal bupivacaine with or without epinephrine for total knee replacement arthroplasty.
After these measurements, ED50 and ED95 of bupivacaine with epinephrine would be compared with those without epinephrine.
![](https://webarchive.library.unt.edu/web/20121019203754im_/http://www.clinicaltrials.gov/ct2/html/images/frame/triangle.gif)
Ages Eligible for Study: | 40 Years to 80 Years |
Genders Eligible for Study: | Both |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- The patients with ASA class I or II scheduled for total knee replacement surgery
Exclusion Criteria:
- Patients with previous spine surgery, diabetic and other neuropathy, skin infection at the site of injection, allergy to bupivacaine and other common contraindications for spinal anesthesia were excluded from this study.
![](https://webarchive.library.unt.edu/web/20121019203754im_/http://www.clinicaltrials.gov/ct2/html/images/frame/triangle.gif)
![](https://webarchive.library.unt.edu/web/20121019203754im_/http://www.clinicaltrials.gov/ct2/html/images/frame/triangle.gif)
No publications provided
Responsible Party: | Won Ho Kim, Staff Anesthesiologist, Seoul Medical Center |
ClinicalTrials.gov Identifier: | NCT01264575 History of Changes |
Other Study ID Numbers: | SMC-2010-12-18 |
Study First Received: | December 20, 2010 |
Last Updated: | January 29, 2012 |
Health Authority: | Korea: Food and Drug Administration |
Keywords provided by Seoul Medical Center:
spinal anesthesia intrathecal bupivacaine epinephrine ED50 ED95 |
Additional relevant MeSH terms:
Epinephrine Epinephryl borate Bupivacaine Adrenergic beta-Agonists Adrenergic Agonists Adrenergic Agents Neurotransmitter Agents Molecular Mechanisms of Pharmacological Action Pharmacologic Actions Physiological Effects of Drugs Bronchodilator Agents Autonomic Agents Peripheral Nervous System Agents |
Anti-Asthmatic Agents Respiratory System Agents Therapeutic Uses Mydriatics Adrenergic alpha-Agonists Sympathomimetics Vasoconstrictor Agents Cardiovascular Agents Anesthetics, Local Anesthetics Central Nervous System Depressants Sensory System Agents Central Nervous System Agents |
ClinicalTrials.gov processed this record on October 18, 2012