- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02972762
Anesthesia Depth's Influence on Postoperative Delirium
December 13, 2017 updated by: Xiangya Hospital of Central South University
The Clinical Investigation of Anesthesia Depth's Influence in Total Intravenous Anesthesia on Postoperative Delirium of Elderly Patients
The investigators,according to the eligibility criteria,plane to choose 80 elderly anticipates who will undergo selective hip replacement surgery.This participants will be randomly divided into 2 groups:light anesthesia depth group(L Group) and deep anesthesia depth group (D Group).Before anesthesia induction,each participant will be given lumbar plexus and sciatic nerve block in order to control pain of interoperative and postoperative.During operation period,the L Group will be kept in light anesthesia depth(BIS:50-60),while the D group will be kept in deep anesthesia depth(BIS:35-45)--The BIS values in the range of 30-60 have been recommended in general anesthesia.After operation,a PCIA(patient controlled intravenous analgesia) analgesia pump will be given to each participant to control postoperative pain.
The investigator will evaluate the mental state of participant with MMSE(mini-mental state examination) before surgery and review each participant with a CAM-CR for 3 days after surgery to assess the situation of postoperation delirium.intraoperative
awareness,postoperative pain will also be investigated in postoperative days 1, 2, 3.
Study Overview
Detailed Description
The investigators,according to the eligibility criteria,plane to choose 80 elderly participants who will undergo selective hip replacement surgery.This participants will be randomly divided into 2 groups:light anesthesia depth group(BIS:50-60) and deep anesthesia depth group (BIS:35-45)--The BIS values in the range of 30-60 have been recommended in general anesthesia.Before anesthesia induction,each participant will be given lumbar plexus and sciatic nerve block in order to control pain of intraoperative and postoperative.The investigator use propofol 4ug\kg、and sufentanil 0.2ug\kg during anesthesia induction period,after that,a Laryngeal mask will be placed into patient's mouth.Anesthesia is maintained with remifentanil TCI(target-controlled infusion) target-controlled infusion(concentration:2ng/ml) and propofol BIS closed-loop target-controlled infusion.During the operation period ,the investigator keep the L Group's BIS range from 50 to 60.While the D Group's BIS range from 35 to 45.All participants receive postoperative analgesia.After operation,all participants will be send to PACU(post-anaesthesia care unit ) to wake up and send back to ward,And a PCIA(patient controlled intravenous analgesia) analgesia pump will be given to each participants to control postoperative pain.The investigators will use MMSE(mini-mental state examination) to evaluate the participant's mental state before surgery.For 3 days after operation,The investigator will review each participant with a CAM-CR to assess the situation of postoperation delirium.The investigator will see if there is intraoperative awareness by asking questions.Postoperative pain(with VAS) will also be investigated in postoperative days 1, 2, 3.
Study Type
Interventional
Enrollment (Anticipated)
80
Phase
- Early Phase 1
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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Hunan
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Changsha, Hunan, China, 410000
- Xiangya hospital of CSU
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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
60 years and older (ADULT, OLDER_ADULT)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- participant who is selected to undergo hip replacement surgery.
- participant who is older than 60 years old.
- participant whose ASA(The American Society of Anesthesiologists) is II-III.
- participant whose BMI is 18-25.
- participant who is able to understand and complete The Confusion Assessment Method(CAM-CR).
- participant who is able to finish Visual Analogue Scale(VAS).
- participant who is conscious and willing to take part in this research.
- participant and his/her relatives are willing to take part in this research.
Exclusion Criteria:
- participant who has serious liver or kidney disease.
- participant who suffer from mental or neurologic disease,such as Alzheimer disease.
- participant who has undergone cardiovascular surgery or neurosurgery.
- participant who has have sedation or antidepression medicine for a long time.
- participant who has something wrong with his/her vision or hearing.
- participant who has blood coagulation dysfunction.
- participant who is an illiteracy.
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
- Masking: SINGLE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
ACTIVE_COMPARATOR: L Group
The participants in L Group will receive Lumbar plexus and sciatic nerve block with ropivacaine before anesthesia induction.The investigator use Diprivan TCI target-controlled infusion during anesthesia induction period, target effect-site concentration is set at 4.0g / kg.
After reaching the target concentration, sufentanil 0.2g / kg is administrated, Laryngeal mask will be placed into participant's mouth at 2 min after sufentanil is given.
Anesthesia will be maintained with remifentanil TCI target-controlled infusion and Diprivan BIS close-loop target controlled infusion,BIS ranges from 50 to 60.The values of BP,P,PetCO2 will be controled in proper site.
each participant will be given postoperative analgesia pump to release postoperative pain.
|
anesthesia will be maintained with remifentanil and Diprivan.we
use Diprivan close-loop to control the anesthesia depth,and the anesthesia depth will be detected with BIS machine.the
usage of remifentanil、ropivacaine、sufentanil and cisatracurium in both arms is no difference.
|
ACTIVE_COMPARATOR: D Group
The participant in L Group will receive Lumbar plexus and sciatic nerve block with ropivacaine before anesthesia induction.The investigator use Diprivan TCI target-controlled infusion during anesthesia induction period, target effect-site concentration is set at 4.0g / kg.
After reaching the target concentration, sufentanil 0.2g / kg is administrated, Laryngeal mask will be placed into participant's mouth at 2 min after sufentanil is given.
Anesthesia will be maintained with remifentanil TCI target-controlled infusion and Diprivan BIS close-loop target controlled infusion,BIS ranges from 35 to 45.The values of BP,P,PetCO2 will be controled in proper site.
The investigator use postoperative analgesia pump to control postoperative pain for each participant.
|
anesthesia will be maintained with remifentanil and Diprivan.we
use Diprivan close-loop to control the anesthesia depth,and the anesthesia depth will be detected with BIS machine.the
usage of remifentanil、ropivacaine、sufentanil and cisatracurium in both arms is no difference.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
postoperative delirium score(with The Confusion Assessment Method)
Time Frame: 3 days
|
the The Confusion Assessment Method is widely used to access the postoperative delirium all around the world.the
total score more than 22 means that the The participant has got delirium.
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3 days
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final data analysis
Time Frame: 10 days
|
the investigators use SPSS software to analysis data.
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10 days
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
postoperative pain score(with visual analogue scale)
Time Frame: 3 days
|
3 days
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intraoperative awareness
Time Frame: 1 day
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1 day
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Investigators
- Study Director: tao Zhong, doctor, Xiangya hospital of CSU
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)
November 1, 2016
Primary Completion (ANTICIPATED)
December 1, 2018
Study Completion (ANTICIPATED)
December 1, 2018
Study Registration Dates
First Submitted
November 16, 2016
First Submitted That Met QC Criteria
November 20, 2016
First Posted (ESTIMATE)
November 23, 2016
Study Record Updates
Last Update Posted (ACTUAL)
December 15, 2017
Last Update Submitted That Met QC Criteria
December 13, 2017
Last Verified
November 1, 2016
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Mental Disorders
- Pathologic Processes
- Nervous System Diseases
- Neurologic Manifestations
- Confusion
- Neurobehavioral Manifestations
- Neurocognitive Disorders
- Musculoskeletal Diseases
- Bone Diseases
- Osteonecrosis
- Delirium
- Necrosis
- Femur Head Necrosis
- Physiological Effects of Drugs
- Central Nervous System Depressants
- Anesthetics, Intravenous
- Anesthetics, General
- Anesthetics
- Hypnotics and Sedatives
- Propofol
Other Study ID Numbers
- XiangyaH
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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