- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03322150
Effect of Atropine or Glycopyrrolate on the Prevention of Bradycardia During Sedation Using Dexmedetomidine in Adult Patients Undergoing Lower Extremity Surgery Under Spinal Anesthesia
March 12, 2019 updated by: Yonsei University
Patients undergoing lower extremity surgery with spinal anesthesia are often sedated to reduce patient discomfort due to large noises during surgery and also to reduce anxiety.
Most commonly used sedatives include propofol and midazolam, but these agents are known to often cause hypotension or respiratory depression.
Dexmedetomidine is a selective alpha 2 adrenergic drug, which acts as a sedative and also has analgesia effects.
In contrast to propofol or midazolam, dexmedetomidine rarely causes respiratory depression, and therefore is often used in critically ill patients in the ICU and also in patients undergoing simple procedures.
Hemodynamically, dexmedetomidine evokes a biphasic blood pressure response with a short hypertensive phase and subsequent hypotension.
Bradycardia is also observed in many patients, which may lead to more serious outcomes when progressing to sinus pause or shock.
Therefore, drugs to prevent bradycardia during dexmedetomidine infusion may help patients maintain a more stable hemodynamic state.
The present study aims to compare the ability of atropine and glycopyrrolate to prevent bradycardia during dexmedetomidine infusion in patients undergoing lower extremity orthopedic surgery with spinal anesthesia.
Study Overview
Status
Terminated
Conditions
Intervention / Treatment
Study Type
Interventional
Enrollment (Actual)
2
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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Seoul, Korea, Republic of, 03722
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years to 58 years (Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Patients 65 years or older undergoing total knee replacement surgery under spinal anesthesia.
- ASA class 1-3
Exclusion Criteria:
- Patients with coagulation abnormalities
- End organ diseases of liver, lung or kidney
- Severe aortic stenosis
- High degree AV block
- Heart failure
- Patients on MAO inhibitors
- History of seizures or epilepsy
- Glaucoma
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Atropine group
Patients that receive atropine 0.01 mg/kg (max 0.5mg) before spinal anesthesia
|
Atropine injection (0.01 mg/kg, max 0.5 mg) 3 minutes before spinal anesthesia
|
Active Comparator: Glycopyrrolate group
Patients that receive glycopyrrolate 0.004mg/kg (max 0.2 mg) before spinal anesthesia
|
Glycopyrrolate (0.00 4mg/kg, max 0.2 mg) 3 minutes before spinal anesthesia
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Pulse rate
Time Frame: From 5 minutes before spinal anesthesia~end of surgery (Intraoperatively)
|
measured as beats per minute, heart rate below 60 bpm or decrease of more than 30% from baseline is defined as bradycardia.
|
From 5 minutes before spinal anesthesia~end of surgery (Intraoperatively)
|
blood pressure
Time Frame: From 5 minutes before spinal anesthesia~end of surgery (Intraoperatively)
|
measured as mmHg, mean blood pressure lower than 60 mmHg or decrease of more than 30% from baseline is defined as hypotension.
|
From 5 minutes before spinal anesthesia~end of surgery (Intraoperatively)
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
October 1, 2017
Primary Completion (Actual)
August 1, 2018
Study Completion (Actual)
August 1, 2018
Study Registration Dates
First Submitted
October 23, 2017
First Submitted That Met QC Criteria
October 23, 2017
First Posted (Actual)
October 26, 2017
Study Record Updates
Last Update Posted (Actual)
March 14, 2019
Last Update Submitted That Met QC Criteria
March 12, 2019
Last Verified
March 1, 2019
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Pathologic Processes
- Heart Diseases
- Cardiovascular Diseases
- Arrhythmias, Cardiac
- Bradycardia
- Physiological Effects of Drugs
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Anti-Arrhythmia Agents
- Parasympatholytics
- Autonomic Agents
- Peripheral Nervous System Agents
- Muscarinic Antagonists
- Cholinergic Antagonists
- Cholinergic Agents
- Adjuvants, Anesthesia
- Bronchodilator Agents
- Anti-Asthmatic Agents
- Respiratory System Agents
- Mydriatics
- Glycopyrrolate
- Atropine
Other Study ID Numbers
- 4-2013-0763
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
No
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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