Effect of Anesthetics on Oxygenation and Microcirculation During One-lung Ventilation
October 12, 2016 updated by: Seoul National University Hospital
One-lung ventilation during thoracic surgery may affect systemic oxygenation and peripheral microcirculation by hypoxic pulmonary vasoconstriction.
Both intravenous and inhalational anesthetics can be used during one-lung ventilation.
However, there is still a controversy which anesthetic would be more appropriate during one-lung ventilation in the perspective of oxygenation and microcirculation.
The investigators hypothesized that intravenous and inhalational anesthetics may affect oxygenation and microcirculation differently during one-lung ventilation.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Detailed Description
Patients undergoing thoracic surgery including one-lung ventilation will be randomized to receive intravenous (propofol) or inhalational (desflurane) anesthetic.
Systemic oxygenation can be evaluated by measuring partial pressure of oxygen in arterial blood analysis. Microcirculatory parameters can be obtained from vascular occlusion test. Among those parameters, recovery slope during vascular occlusion test is known to reflect recruitment of microvasculature in response to hypoxic or ischemic insult. In this study, we will compare arterial partial pressure of oxygen and recovery slope during one-lung ventilation between propofol and desflurane group.
Study Type
Interventional
Enrollment (Actual)
104
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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-
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Seoul, Korea, Republic of, 110-744
- Seoul National University Hospital
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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
20 years to 90 years (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- undergoing thoracic surgery including one-lung ventilation
Exclusion Criteria:
- refuse to enroll
- BMI over 30 kg/m(2)
- severe obstructive or restrictive lung disease
- preoperative supplemental oxygen, intubated, or mechanical ventilatory support
- preoperative arterial partial pressure of oxygen < 60 mmHg
- pregnancy
- history of coronary artery disease
- preoperative continuous infusion of vasopressor or inotropes
- cannot undergo vascular occlusion test: anatomical abnormality of both arms, severe peripheral vascular disease, presence of A-V fistula
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: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
|---|---|
|
Experimental: propofol
Propofol is used as a maintenance anesthetic to patients in the propofol group.
Intervention: propofol infusion by target-controlled infusion for maintaining anesthesia propofol (Fresofol MCT 2%) target effect site concentration: 4~5 mcg/ml, during general anesthesia
|
Patients are randomized to receive intravenous anesthetic (propofol) or inhalational anesthetic (desflurane) as a maintenance anesthetic.
Other Names:
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Experimental: desflurane
Desflurane is used as a maintenance anesthetic to patients in the desflurane group. Intervention: Desflurane administration for maintaining anesthesia desflurane (Suprane) inhalation as 6~8 vol% during general anesthesia |
Patients are randomized to receive intravenous anesthetic (propofol) or inhalational anesthetic (desflurane) as a maintenance anesthetic.
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
arterial partial pressure of oxygen
Time Frame: 30 min after one-lung ventilation
|
Primary outcome is arterial partial pressure of oxygen 30 min after one-lung ventilation during thoracic surgery in propofol and desflurane groups.
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30 min after one-lung ventilation
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
recovery slope
Time Frame: 30 min after one-lung ventilation
|
Secondary outcome is recovery slope measured by vascular occlusion test 30 min after one-lung ventilation during thoracic surgery in propofol and desflurane groups.
|
30 min after one-lung ventilation
|
Other Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
blood pressure
Time Frame: 30 min after one-lung ventilation
|
30 min after one-lung ventilation
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
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
July 1, 2014
Primary Completion (Actual)
December 1, 2014
Study Completion (Actual)
December 1, 2014
Study Registration Dates
First Submitted
July 7, 2014
First Submitted That Met QC Criteria
July 13, 2014
First Posted (Estimate)
July 16, 2014
Study Record Updates
Last Update Posted (Estimate)
October 13, 2016
Last Update Submitted That Met QC Criteria
October 12, 2016
Last Verified
August 1, 2014
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- PaO2 & StO2 in OLV
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
product manufactured in and exported from the U.S.
No
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