- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03016234
IOP Changes With Different Anesthetic Agents During Laparoscopic Colorectal Surgery
April 24, 2017 updated by: Seo, Kwon Hui, Saint Vincent's Hospital, Korea
Intraocular Pressure Changes During Laparoscopic Colorectal Surgery: Propofol Versus Desflurane Anesthesia
This study is aimed to evaluate how intraocular pressure (IOP) is changed depending on surgical position (Trendelenburg versus reverse Trendelenburg) in the same patient and to compare the effects of different anesthetics on IOP (desflurane versus propofol) in patients undergoing laparoscopic colorectal surgery.
The study design is a double-blind randomized controlled trial.
The patients were randomly assigned to desflurane or propofol administrated groups and all patient are administered intravenous remifentanil continuously as adjuvant analgesics during anesthesia.
For this study 50 to 80-year-old patients undergoing laparoscopic colorectal surgery without eye disease were enrolled.
Mean arterial blood pressure, peak airway pressure, end tidal carbon dioxide, and IOP (using a Tono-pen® Avia tonometer) on both eyes were measured at defined intervals during the procedure.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Detailed Description
Perioperative visual loss is a rare but devastating complication associated with certain type of operative procedures.
Laparoscopic or robotic surgeries for colorectal cancer, prostate cancer and diseases of the female genital organs in the pelvic cavity are performed in a steep Trendelenburg position and pneumoperitoneum, which increases the intraocular pressure (IOP) by 13-26 mmHg compared with the preoperative IOP value.
High intraocular pressure is believed to correlate with decreased perfusion to the optic nerve, and thus could lead to ischemic optic neuropathy.
The objective of the study is to test which anesthetic agent (desflurane or propofol) can attenuate the changes in IOP during laparoscopic colorectal surgery and identify correlated parameters.
Fifty patients (30-80 years; American Society of Anesthesiologists' physical status 1-2) scheduled for laparoscopic colorectal surgery will be enrolled and allocated randomly into two groups (group D and group P).
After measurement of initial IOP with topical opthalmic anesthetics, general anesthesia will be induced with pentothal sodium 5-6mg/kg (group D) or propofol (group P) 2-2.5mg/kg.
After administration of muscle relaxant and intubation, intraocular pressure will be measured and anesthesia will be maintained with desflurane (group D) or propofol (group P) and all patients will be administered intravenous remifentanil concurrently during anesthesia.
During anesthesia, IOP will be measured at different patient positions.
At the time of each IOP measurements, the following data set will be collected: mean arterial pressure (MAP), End tidal carbon dioxide (EtCO2), peak inspiratory pressure (PIP).
Study Type
Interventional
Enrollment (Actual)
50
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
-
-
Gyonggido
-
Suwon, Gyonggido, Korea, Republic of, 16247
- Saint Vincent's Hospital, Korea
-
-
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
28 years to 78 years (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- patients undergoing laparoscopic colorectal surgery American society of anesthesiologist physical status class I or II
Exclusion Criteria:
- opthalmic disease or previously undergone opthalmic surgery, uncontrolled hypertension, arrythmia, psychiatric disorder, uncontrolled obstructive lung disease
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: Supportive Care
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Desflurane
inhalation anesthesia administration for maintenance of anesthesia
|
On arrival in the operating room, initial intraocular pressure is measured after administration of alcaine 0.5% eye drop and routine monitoring and bispectral index(BIS) are applied.
Anesthesia is induced with pentothal sodium inj (thiopental sodium 0.53g) 5-6mg/kg and esmeron inj (rocuronium bromide 50mg/5ml) 1mg/kg.
Then endotracheal intubation is performed, anesthesia is maintained with 50% oxygen-air-4~7% desflurane inhalation and intravenous remifentanil continous infusion (effect site concentration 3-6ng/mL) during operation.
Desflurane concentration is titrated to maintain BIS values within a target range 40-60 during operation.
Mean arterial blood pressure, peak airway pressure, end tidal carbon dioxide, and IOP on both eyes are measured at defined intervals.
Other Names:
|
Active Comparator: Propofol
intravenous anesthesia administration for maintenance of anesthesia
|
On arrival in the operating room, initial intraocular pressure is measured after administration of alcaine 0.5% eye drop and routine monitoring and bispectral index(BIS) are applied.
Anesthesia is induced with fresofol MCT 1% inj (1% propofol) 1.5-2.5mg/kg
and esmeron inj (rocuronium bromide 50mg/5ml) 1mg/kg.
Then endotracheal intubation is performed, anesthesia is maintained with intravenous fresofol MCT 2% inj (2% propofol, effect site concentration 2.5-5μg/mL) and remifentanil (effect site concentration 3-6ng/mL) continous infusion.
Effect site concentration of propofol is titrated to maintain BIS values within a target range 40-60 during operation.
Mean arterial blood pressure, peak airway pressure, end tidal carbon dioxide, and IOP on both eyes are measured at defined intervals.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
changes in intraocular pressure (IOP) in different positions during laparoscopic colorectal surgery under desflurane or propofol anesthesia.
Time Frame: before anesthesia induction, immediately after intubation, after pneumoperitoneum, 30 minutes after head down and right tilt position, 10 minutes after head up and right tilt, 30 minutes after head down and right tilt and 5 minutes before extubation
|
T1 (baseline: initial IOP before anesthesia induction), T2 (immediately after endotracheal intubation), T3(after pneumoperitoneum in supine position), T4 (30 minutes after position change to head down and right tilt), T5 (10 minutes after position change to head up and right tilt), T6 (30 minutes after position change to head down and right tilt) and T7 (5 minutes before endotracheal extubation)
|
before anesthesia induction, immediately after intubation, after pneumoperitoneum, 30 minutes after head down and right tilt position, 10 minutes after head up and right tilt, 30 minutes after head down and right tilt and 5 minutes before extubation
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
changes in mean arterial pressure (MAP) in different positions during laparoscopic colorectal surgery under desflurane or propofol anesthesia.
Time Frame: before anesthesia induction, immediately after intubation, after pneumoperitoneum, 30 minutes after head down and right tilt position, 10 minutes after head up and right tilt, 30 minutes after head down and right tilt and 5 minutes before extubation
|
T1 (baseline: initial MAP before anesthesia induction), T2 (immediately after endotracheal intubation), T3(after pneumoperitoneum in supine position), T4 (30 minutes after position change to head down and right tilt), T5 (10 minutes after position change to head up and right tilt), T6 (30 minutes after position change to head down and right tilt) and T7 (5 minutes before endotracheal extubation)
|
before anesthesia induction, immediately after intubation, after pneumoperitoneum, 30 minutes after head down and right tilt position, 10 minutes after head up and right tilt, 30 minutes after head down and right tilt and 5 minutes before extubation
|
changes in end tidal carbon dioxide in different positions during laparoscopic colorectal surgery under desflurane or propofol anesthesia.
Time Frame: immediately after intubation, after pneumoperitoneum, 30 minutes after head down and right tilt position, 10 minutes after head up and right tilt, 30 minutes after head down and right tilt and 5 minutes before extubation
|
T2 (immediately after endotracheal intubation), T3(after pneumoperitoneum in supine position), T4 (30 mins after position change to head down and right tilt), T5 (10 mins after position change to head up and right tilt), T6 (30 mins after position change to head down and right tilt) and T7 (5 minutes before endotracheal extubation)
|
immediately after intubation, after pneumoperitoneum, 30 minutes after head down and right tilt position, 10 minutes after head up and right tilt, 30 minutes after head down and right tilt and 5 minutes before extubation
|
changes in peak airway pressure in different positions during laparoscopic colorectal surgery under desflurane or propofol anesthesia.
Time Frame: immediately after intubation, after pneumoperitoneum, 30 minutes after head down and right tilt position, 10 minutes after head up and right tilt, 30 minutes after head down and right tilt and 5 minutes before extubation
|
T2 (immediately after endotracheal intubation), T3(after pneumoperitoneum in supine position), T4 (30 mins after position change to head down and right tilt), T5 (10 mins after position change to head up and right tilt), T6 (30 mins after position change to head down and right tilt) and T7 (5 minutes before endotracheal extubation)
|
immediately after intubation, after pneumoperitoneum, 30 minutes after head down and right tilt position, 10 minutes after head up and right tilt, 30 minutes after head down and right tilt and 5 minutes before extubation
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Kwon hui Seo, MD, Saint Vincent's Hospital, Korea
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
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)
September 29, 2016
Primary Completion (Actual)
March 8, 2017
Study Completion (Actual)
March 8, 2017
Study Registration Dates
First Submitted
January 4, 2017
First Submitted That Met QC Criteria
January 6, 2017
First Posted (Estimate)
January 10, 2017
Study Record Updates
Last Update Posted (Actual)
April 26, 2017
Last Update Submitted That Met QC Criteria
April 24, 2017
Last Verified
April 1, 2017
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- VC16OISI0143
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
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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