- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01691703
Combined Technique for Difficult Intubation
February 19, 2013 updated by: Barbe Pieters, Catharina Ziekenhuis Eindhoven
Combined Technique Using Videolaryngoscopy and Bonfils for a Difficult Airway Intubation
A difficult tracheal intubation can be a problem, even if one has taken all precautions.
A possible solution can be using a videolaryngoscope in conjunct with the Bonfils® intubation scope.
As such, the videolaryngoscope can be used to achieve the best possible view and space of the laryngeal inlet for the insertion and manoeuvring of the Bonfils® intubation scope.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Detailed Description
In this blinded, unrandomised trial the investigators would like to investigate the change in Cormack and Lehane grade when using both videolaryngoscope (Macintosh videolaryngoscope, Karl Storz, Tuttlingen, Germany) and Bonfils® (Karl Storz, Tuttlingen, Germany).
They also want to record the success of intubation and the time needed until successful endotracheal intubation when using this technique as well as complications (trauma to the oral cavity, dental trauma, and regurgitation seen by the anaesthesiologist) that may occur.
Also saturation (SpO2) at the end of the procedure will be noted and adjuncts that are used.
Study Type
Interventional
Enrollment (Actual)
40
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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Eindhoven, Netherlands, 5623 EJ
- Catharina Ziekenhuis Eindhoven
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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
16 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Informed patient consent Age > 18 years History of difficult intubation (Cormack and Lehane III-IV)
One or more predictors of a difficult intubation:
- restricted neck movement
- thyromental distance < 60 mm
- interincisor/interdental distance < 30mm
- BMI > 35 kg.m-2 Elective surgery making endotracheal intubation necessary (other than head and/or neck surgery) Fasted (≥ 6 hours)
Exclusion Criteria:
- No informed patient consent Age < 18 years Emergency surgery, head and/or neck surgery Fasted < 6 hours
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
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Videolaryngoscope and Bonfils
First, the Macintosh videolaryngoscope (Karl Storz, Tuttlingen, Germany) will be used to achieve the best possible view and space of the laryngeal inlet for the insertion and manoeuvring of the Bonfils® (Karl Storz, Tuttlingen, Germany).
Once the anaesthesiologist considers the view achieved to be the best view possible, a picture will be taken using C-CAMTM for C-MAC (Karl Storz, Tuttlingen, Germany), not showing any part of the videolaryngoscope.
Thereafter the Bonfils® intubation scope, which will be preloaded with the endotracheal tube, will be brought into position in front of the laryngeal inlet.
Again a picture not showing any part of one of the two devices will be taken.
Once the Bonfils® has entered the trachea, the tracheal tube will be placed in the correct position.
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First, the Macintosh videolaryngoscope (Karl Storz, Tuttlingen, Germany) will be used to achieve the best possible view and space of the laryngeal inlet for the insertion and manoeuvring of the Bonfils® (Karl Storz, Tuttlingen, Germany).
Once the anaesthesiologist considers the view achieved to be the best view possible, a picture will be taken using C-CAMTM for C-MAC (Karl Storz, Tuttlingen, Germany), not showing any part of the videolaryngoscope.
Thereafter the Bonfils® intubation scope, which will be preloaded with the endotracheal tube, will be brought into position in front of the laryngeal inlet.
Again a picture not showing any part of one of the two devices will be taken.
Once the Bonfils® has entered the trachea, the tracheal tube will be placed in the correct position.
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Cormack and Lehane grade achieved when using the combination technique compared with the Cormack and Lehane grade achieved earlier when using the Macintosh (video)laryngoscope alone.
Time Frame: The patients will be followed during induction of anesthesia, an average of 10 minutes
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The operator will score these grades during the process of intubation.
Pictures will be taken of the first and the second Cormack and Lehane grade, and these pictures will later be scored by two anaesthesiologists, blinded for the technique used (videolaryngoscopy alone or videolaryngoscopy combined with the Bonfils®).
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The patients will be followed during induction of anesthesia, an average of 10 minutes
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Proportion of successful intubation with the 2 methods under study, without the use of adjuncts.
Time Frame: The patients will be followed during induction of anesthesia, an average of 10 minutes
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Proportion of successful intubation with the 2 methods under study, without the use of adjuncts.
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The patients will be followed during induction of anesthesia, an average of 10 minutes
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Time until successful endotracheal intubation
Time Frame: The patients will be followed during induction of anesthesia, an average of maximal 3 minutes
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Time until successful endotracheal intubation will be defined as the time from the moment the blade of the Macintosh videolaryngoscope is placed between the teeth until the time the anaesthesiologist confirms the endotracheal tube to be in the trachea.
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The patients will be followed during induction of anesthesia, an average of maximal 3 minutes
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Complications rendered on during the procedure
Time Frame: The patients will be followed during induction of anesthesia, an average of 10 minutes
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Complications that will be recorded are: trauma to the oral cavity (defined as any amount of bright red blood in the oral cavity), dental trauma, and regurgitation seen by the anaesthesiologist.
Also oxygen saturation (SpO2) at the end of the procedure will be noted, a saturation of less than 90% will be defined as hypoxia.
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The patients will be followed during induction of anesthesia, an average of 10 minutes
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Adjuncts being used
Time Frame: The patients will be followed during induction of anesthesia, an average of 10 minutes
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Adjuncts that can be used are: gum elastic bougie, stylet and the BURP manoeuvre (performed by a second operator).
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The patients will be followed during induction of anesthesia, an average of 10 minutes
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Barbe MA Pieters, MD, Catharina Ziekenhuis Eindhoven
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
August 1, 2012
Primary Completion (Actual)
February 1, 2013
Study Completion (Actual)
February 1, 2013
Study Registration Dates
First Submitted
September 18, 2012
First Submitted That Met QC Criteria
September 20, 2012
First Posted (Estimate)
September 25, 2012
Study Record Updates
Last Update Posted (Estimate)
February 20, 2013
Last Update Submitted That Met QC Criteria
February 19, 2013
Last Verified
February 1, 2013
More Information
Terms related to this study
Other Study ID Numbers
- COM.12
- 12-624 (Other Identifier: Medisch Ethische Commissie Catharina Ziekenhuis Eindhoven)
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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