Trial Outcomes & Findings for Comparison of Endotracheal Intubation Over the Aintree Via the I-gel and Laryngeal Mask Airway Supreme (NCT NCT02476565)

NCT ID: NCT02476565

Last Updated: 2018-03-16

Results Overview

This measure of time begins with the handling of the supraglottic device to confirming the appropriate placement of the device by noting the presences of end tidal carbon dioxide.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

39 participants

Primary outcome timeframe

Up to 10 minutes

Results posted on

2018-03-16

Participant Flow

Participant milestones

Participant milestones
Measure
I-gel Supraglottic Device
The I-gel is an alternative supraglottic device made from thermoplastic elastomer which provides the seal over the airway versus an inflatable cuff. I-gel supraglottic device: The fiberscope (with the Aintree loaded on top of it) will be advanced through the supraglottic device into the trachea. Next, the supraglottic device will be removed and the endotracheal tube will be advanced into the airway over the Aintree airway intubation catheter. Finally, the Aintree catheter is removed and the endotracheal tube will be left in the airway.
LMA-Supreme Supraglottic Device
The LMA-Supreme is a single-use disposable supraglottic airway that utilizes an inflatable cuff LMA-Supreme supraglottic device: The fiberscope (with the Aintree loaded on top of it) will be advanced through the supraglottic device into the trachea. Next, the supraglottic device will be removed and the endotracheal tube will be advanced into the airway over the Aintree airway intubation catheter. Finally, the Aintree catheter is removed and the endotracheal tube will be left in the airway.
Overall Study
STARTED
20
19
Overall Study
COMPLETED
20
19
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Data not available for 10 subjects

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
LMA-Supreme Supraglottic Device
n=19 Participants
The LMA-Supreme is a single-use disposable supraglottic airway that utilizes an inflatable cuff LMA-Supreme supraglottic device: The fiberscope (with the Aintree loaded on top of it) will be advanced through the supraglottic device into the trachea. Next, the supraglottic device will be removed and the endotracheal tube will be advanced into the airway over the Aintree airway intubation catheter. Finally, the Aintree catheter is removed and the endotracheal tube will be left in the airway.
I-gel Supraglottic Device
n=20 Participants
The I-gel is an alternative supraglottic device made from thermoplastic elastomer which provides the seal over the airway versus an inflatable cuff. I-gel supraglottic device: The fiberscope (with the Aintree loaded on top of it) will be advanced through the supraglottic device into the trachea. Next, the supraglottic device will be removed and the endotracheal tube will be advanced into the airway over the Aintree airway intubation catheter. Finally, the Aintree catheter is removed and the endotracheal tube will be left in the airway.
Total
n=39 Participants
Total of all reporting groups
Age, Continuous
54 years
STANDARD_DEVIATION 15 • n=14 Participants • Data not available for 10 subjects
58 years
STANDARD_DEVIATION 14 • n=15 Participants • Data not available for 10 subjects
56 years
STANDARD_DEVIATION 14 • n=29 Participants • Data not available for 10 subjects
Sex: Female, Male
Female
1 Participants
n=15 Participants • Data not available for 10 subjects
2 Participants
n=14 Participants • Data not available for 10 subjects
3 Participants
n=29 Participants • Data not available for 10 subjects
Sex: Female, Male
Male
14 Participants
n=15 Participants • Data not available for 10 subjects
12 Participants
n=14 Participants • Data not available for 10 subjects
26 Participants
n=29 Participants • Data not available for 10 subjects
Race and Ethnicity Not Collected
0 Participants
Race and Ethnicity were not collected from any participant.
Region of Enrollment
United States
19 Participants
n=19 Participants
20 Participants
n=20 Participants
39 Participants
n=39 Participants
Body Mass Index (BMI)
28.3 kg/m2
STANDARD_DEVIATION 8.0 • n=19 Participants
27.3 kg/m2
STANDARD_DEVIATION 8.3 • n=20 Participants
27.7 kg/m2
STANDARD_DEVIATION 8.1 • n=39 Participants

PRIMARY outcome

Timeframe: Up to 10 minutes

Population: unable to confirm accuracy of data in 1 participant in the I-gel group, that participant's data was not included in the analysis

This measure of time begins with the handling of the supraglottic device to confirming the appropriate placement of the device by noting the presences of end tidal carbon dioxide.

Outcome measures

Outcome measures
Measure
I-gel Supraglottic Device
n=19 Participants
The I-gel is an alternative supraglottic device made from thermoplastic elastomer which provides the seal over the airway versus an inflatable cuff. I-gel supraglottic device: The fiberscope (with the Aintree loaded on top of it) will be advanced through the supraglottic device into the trachea. Next, the supraglottic device will be removed and the endotracheal tube will be advanced into the airway over the Aintree airway intubation catheter. Finally, the Aintree catheter is removed and the endotracheal tube will be left in the airway.
LMA-Supreme Supraglottic Device
n=19 Participants
The LMA-Supreme is a single-use disposable supraglottic airway that utilizes an inflatable cuff LMA-Supreme supraglottic device: The fiberscope (with the Aintree loaded on top of it) will be advanced through the supraglottic device into the trachea. Next, the supraglottic device will be removed and the endotracheal tube will be advanced into the airway over the Aintree airway intubation catheter. Finally, the Aintree catheter is removed and the endotracheal tube will be left in the airway.
Time to Successful Tracheal Intubation
197 seconds
Standard Deviation 93
304 seconds
Standard Deviation 173

SECONDARY outcome

Timeframe: Up to 10 minutes

Population: unable to confirm accuracy of data in 1 participant in the I-gel group, that participant's data was not included in the analysis

This measure of time begins with the handling of the supra glottic device to confirming the appropriate placement of the device by noting the presences of end tidal carbon dioxide

Outcome measures

Outcome measures
Measure
I-gel Supraglottic Device
n=19 Participants
The I-gel is an alternative supraglottic device made from thermoplastic elastomer which provides the seal over the airway versus an inflatable cuff. I-gel supraglottic device: The fiberscope (with the Aintree loaded on top of it) will be advanced through the supraglottic device into the trachea. Next, the supraglottic device will be removed and the endotracheal tube will be advanced into the airway over the Aintree airway intubation catheter. Finally, the Aintree catheter is removed and the endotracheal tube will be left in the airway.
LMA-Supreme Supraglottic Device
n=19 Participants
The LMA-Supreme is a single-use disposable supraglottic airway that utilizes an inflatable cuff LMA-Supreme supraglottic device: The fiberscope (with the Aintree loaded on top of it) will be advanced through the supraglottic device into the trachea. Next, the supraglottic device will be removed and the endotracheal tube will be advanced into the airway over the Aintree airway intubation catheter. Finally, the Aintree catheter is removed and the endotracheal tube will be left in the airway.
Time to Placement of the Supra Glottic Device
155 seconds
Standard Deviation 182
301 seconds
Standard Deviation 246

SECONDARY outcome

Timeframe: Up to 10 minutes

Population: 4 participants in the LMA-Supreme arm were not included in analysis because the study was aborted at the request of the attending or the times to established safety cutoff for airway establishment (10 minutes) was exceeded.

Percent of subjects who required 0, 1, 2, and 3 airway manipulations for the placement of the supraglottic device

Outcome measures

Outcome measures
Measure
I-gel Supraglottic Device
n=20 Participants
The I-gel is an alternative supraglottic device made from thermoplastic elastomer which provides the seal over the airway versus an inflatable cuff. I-gel supraglottic device: The fiberscope (with the Aintree loaded on top of it) will be advanced through the supraglottic device into the trachea. Next, the supraglottic device will be removed and the endotracheal tube will be advanced into the airway over the Aintree airway intubation catheter. Finally, the Aintree catheter is removed and the endotracheal tube will be left in the airway.
LMA-Supreme Supraglottic Device
n=15 Participants
The LMA-Supreme is a single-use disposable supraglottic airway that utilizes an inflatable cuff LMA-Supreme supraglottic device: The fiberscope (with the Aintree loaded on top of it) will be advanced through the supraglottic device into the trachea. Next, the supraglottic device will be removed and the endotracheal tube will be advanced into the airway over the Aintree airway intubation catheter. Finally, the Aintree catheter is removed and the endotracheal tube will be left in the airway.
Percent of Subjects Who Required 0, 1, 2, and 3 Airway Manipulations for the Placement of the Supraglottic Device
0 manipulations
80 percent of participants
80 percent of participants
Percent of Subjects Who Required 0, 1, 2, and 3 Airway Manipulations for the Placement of the Supraglottic Device
1 manipulations
10 percent of participants
13 percent of participants
Percent of Subjects Who Required 0, 1, 2, and 3 Airway Manipulations for the Placement of the Supraglottic Device
2 manipulations
5 percent of participants
7 percent of participants
Percent of Subjects Who Required 0, 1, 2, and 3 Airway Manipulations for the Placement of the Supraglottic Device
3 manipulations
5 percent of participants
0 percent of participants

SECONDARY outcome

Timeframe: Up to 10 minutes

Population: unable to confirm accuracy of data in 1 participant in the I-gel group, that participant's data was not included in the analysis

This measure of time begins with the handling of the fiberscope to withdrawal of the fiberscope from the Aintree and setting the fiberscope down

Outcome measures

Outcome measures
Measure
I-gel Supraglottic Device
n=19 Participants
The I-gel is an alternative supraglottic device made from thermoplastic elastomer which provides the seal over the airway versus an inflatable cuff. I-gel supraglottic device: The fiberscope (with the Aintree loaded on top of it) will be advanced through the supraglottic device into the trachea. Next, the supraglottic device will be removed and the endotracheal tube will be advanced into the airway over the Aintree airway intubation catheter. Finally, the Aintree catheter is removed and the endotracheal tube will be left in the airway.
LMA-Supreme Supraglottic Device
n=19 Participants
The LMA-Supreme is a single-use disposable supraglottic airway that utilizes an inflatable cuff LMA-Supreme supraglottic device: The fiberscope (with the Aintree loaded on top of it) will be advanced through the supraglottic device into the trachea. Next, the supraglottic device will be removed and the endotracheal tube will be advanced into the airway over the Aintree airway intubation catheter. Finally, the Aintree catheter is removed and the endotracheal tube will be left in the airway.
Time to Placement of the Aintree Airway Intubation Catheter
155 seconds
Standard Deviation 182
301 seconds
Standard Deviation 246

SECONDARY outcome

Timeframe: Up to 10 minutes

Population: 2 participants in I-gel arm were excluded from analysis because times to established safety cutoff for airway establishment(10 minutes) was exceeded. 3 participants in LMA-Supreme arm were excluded in analysis because study was aborted at request of attending or times to established safety cutoff for airway establishment (10 minutes) was exceeded.

Percent of subjects who required 0, 1, 2, 3 and 6 airway manipulations for the placement of the Aintree.

Outcome measures

Outcome measures
Measure
I-gel Supraglottic Device
n=18 Participants
The I-gel is an alternative supraglottic device made from thermoplastic elastomer which provides the seal over the airway versus an inflatable cuff. I-gel supraglottic device: The fiberscope (with the Aintree loaded on top of it) will be advanced through the supraglottic device into the trachea. Next, the supraglottic device will be removed and the endotracheal tube will be advanced into the airway over the Aintree airway intubation catheter. Finally, the Aintree catheter is removed and the endotracheal tube will be left in the airway.
LMA-Supreme Supraglottic Device
n=16 Participants
The LMA-Supreme is a single-use disposable supraglottic airway that utilizes an inflatable cuff LMA-Supreme supraglottic device: The fiberscope (with the Aintree loaded on top of it) will be advanced through the supraglottic device into the trachea. Next, the supraglottic device will be removed and the endotracheal tube will be advanced into the airway over the Aintree airway intubation catheter. Finally, the Aintree catheter is removed and the endotracheal tube will be left in the airway.
Percent of Subjects Who Required 0, 1, 2, 3 and 6 Airway Manipulations for the Placement of the Aintree.
6 manipulations
0 percent of participants
6 percent of participants
Percent of Subjects Who Required 0, 1, 2, 3 and 6 Airway Manipulations for the Placement of the Aintree.
0 manipulations
67 percent of participants
25 percent of participants
Percent of Subjects Who Required 0, 1, 2, 3 and 6 Airway Manipulations for the Placement of the Aintree.
1 manipulations
33 percent of participants
25 percent of participants
Percent of Subjects Who Required 0, 1, 2, 3 and 6 Airway Manipulations for the Placement of the Aintree.
2 manipulations
0 percent of participants
31 percent of participants
Percent of Subjects Who Required 0, 1, 2, 3 and 6 Airway Manipulations for the Placement of the Aintree.
3 manipulations
0 percent of participants
12 percent of participants

SECONDARY outcome

Timeframe: Up to 10 minutes

Population: unable to confirm accuracy of data in 1 participant in the I-gel group, that participant's data was not included in the analysis

Time to the appropriate placement of the endotracheal tube.

Outcome measures

Outcome measures
Measure
I-gel Supraglottic Device
n=19 Participants
The I-gel is an alternative supraglottic device made from thermoplastic elastomer which provides the seal over the airway versus an inflatable cuff. I-gel supraglottic device: The fiberscope (with the Aintree loaded on top of it) will be advanced through the supraglottic device into the trachea. Next, the supraglottic device will be removed and the endotracheal tube will be advanced into the airway over the Aintree airway intubation catheter. Finally, the Aintree catheter is removed and the endotracheal tube will be left in the airway.
LMA-Supreme Supraglottic Device
n=19 Participants
The LMA-Supreme is a single-use disposable supraglottic airway that utilizes an inflatable cuff LMA-Supreme supraglottic device: The fiberscope (with the Aintree loaded on top of it) will be advanced through the supraglottic device into the trachea. Next, the supraglottic device will be removed and the endotracheal tube will be advanced into the airway over the Aintree airway intubation catheter. Finally, the Aintree catheter is removed and the endotracheal tube will be left in the airway.
Time to Placement of the Endotrotracheal Tube
81 second
Standard Deviation 71
96 second
Standard Deviation 117

SECONDARY outcome

Timeframe: Up to 10 minutes

Population: 2 participants in I-gel arm were excluded from analysis because times to established safety cutoff for airway establishment(10 minutes) was exceeded. 5 participants in LMA-Supreme arm were excluded in analysis because study was aborted at request of attending or times to established safety cutoff for airway establishment (10 minutes) was exceeded.

Percent of subjects with 0, 1, 2 and 3 airway manipulations required for placement of endotrachial tube

Outcome measures

Outcome measures
Measure
I-gel Supraglottic Device
n=18 Participants
The I-gel is an alternative supraglottic device made from thermoplastic elastomer which provides the seal over the airway versus an inflatable cuff. I-gel supraglottic device: The fiberscope (with the Aintree loaded on top of it) will be advanced through the supraglottic device into the trachea. Next, the supraglottic device will be removed and the endotracheal tube will be advanced into the airway over the Aintree airway intubation catheter. Finally, the Aintree catheter is removed and the endotracheal tube will be left in the airway.
LMA-Supreme Supraglottic Device
n=14 Participants
The LMA-Supreme is a single-use disposable supraglottic airway that utilizes an inflatable cuff LMA-Supreme supraglottic device: The fiberscope (with the Aintree loaded on top of it) will be advanced through the supraglottic device into the trachea. Next, the supraglottic device will be removed and the endotracheal tube will be advanced into the airway over the Aintree airway intubation catheter. Finally, the Aintree catheter is removed and the endotracheal tube will be left in the airway.
Percent of Subjects With 0, 1, 2 and 3 Airway Manipulations Required for Placement of Endotrachial Tube
0 manipulations
67 percent of participants
57 percent of participants
Percent of Subjects With 0, 1, 2 and 3 Airway Manipulations Required for Placement of Endotrachial Tube
1 manipulations
17 percent of participants
43 percent of participants
Percent of Subjects With 0, 1, 2 and 3 Airway Manipulations Required for Placement of Endotrachial Tube
2 manipulations
11 percent of participants
0 percent of participants
Percent of Subjects With 0, 1, 2 and 3 Airway Manipulations Required for Placement of Endotrachial Tube
3 manipulations
6 percent of participants
0 percent of participants

OTHER_PRE_SPECIFIED outcome

Timeframe: Up to 10 minutes

The visualization of each of the following structures provides one point, for a maximum score of 7. 1. Right true vocal cord. 2. Left true vocal cord. 3. Right false vocal cord. 4. Left false vocal cord. 5. Right posterior cartilage 6. Left posterior cartilage 7. Epiglottis

Outcome measures

Outcome measures
Measure
I-gel Supraglottic Device
n=20 Participants
The I-gel is an alternative supraglottic device made from thermoplastic elastomer which provides the seal over the airway versus an inflatable cuff. I-gel supraglottic device: The fiberscope (with the Aintree loaded on top of it) will be advanced through the supraglottic device into the trachea. Next, the supraglottic device will be removed and the endotracheal tube will be advanced into the airway over the Aintree airway intubation catheter. Finally, the Aintree catheter is removed and the endotracheal tube will be left in the airway.
LMA-Supreme Supraglottic Device
n=19 Participants
The LMA-Supreme is a single-use disposable supraglottic airway that utilizes an inflatable cuff LMA-Supreme supraglottic device: The fiberscope (with the Aintree loaded on top of it) will be advanced through the supraglottic device into the trachea. Next, the supraglottic device will be removed and the endotracheal tube will be advanced into the airway over the Aintree airway intubation catheter. Finally, the Aintree catheter is removed and the endotracheal tube will be left in the airway.
Visualization Score
6.0 units on a scale
Standard Deviation 1.3
3.4 units on a scale
Standard Deviation 2.9

Adverse Events

I-gel Supraglottic Device

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

LMA-Supreme Supraglottic Device

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
I-gel Supraglottic Device
n=20 participants at risk
The I-gel is an alternative supraglottic device made from thermoplastic elastomer which provides the seal over the airway versus an inflatable cuff. I-gel supraglottic device: The fiberscope (with the Aintree loaded on top of it) will be advanced through the supraglottic device into the trachea. Next, the supraglottic device will be removed and the endotracheal tube will be advanced into the airway over the Aintree airway intubation catheter. Finally, the Aintree catheter is removed and the endotracheal tube will be left in the airway.
LMA-Supreme Supraglottic Device
n=19 participants at risk
The LMA-Supreme is a single-use disposable supraglottic airway that utilizes an inflatable cuff LMA-Supreme supraglottic device: The fiberscope (with the Aintree loaded on top of it) will be advanced through the supraglottic device into the trachea. Next, the supraglottic device will be removed and the endotracheal tube will be advanced into the airway over the Aintree airway intubation catheter. Finally, the Aintree catheter is removed and the endotracheal tube will be left in the airway.
Respiratory, thoracic and mediastinal disorders
Coughing
5.0%
1/20 • Number of events 1 • from start of anesthesia to successful intubation, up to 10 minutes
0.00%
0/19 • from start of anesthesia to successful intubation, up to 10 minutes
Respiratory, thoracic and mediastinal disorders
Post Extubation Stridor
5.0%
1/20 • Number of events 1 • from start of anesthesia to successful intubation, up to 10 minutes
0.00%
0/19 • from start of anesthesia to successful intubation, up to 10 minutes

Additional Information

Antonio Hernandez, MD

Vanderbilt University Medical Center

Phone: 615 322-4650

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place