Trial Outcomes & Findings for A New Insertion Technique for Laryngeal Mask Airway (NCT NCT01749033)

NCT ID: NCT01749033

Last Updated: 2019-12-17

Results Overview

The primary outcomes for this study will be postoperative pharyngolaryngeal complications of sore throat as reported by the participant.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

450 participants

Primary outcome timeframe

24 hours

Results posted on

2019-12-17

Participant Flow

Participant milestones

Participant milestones
Measure
Group 1 Classic
Group 1 Using the classic inserting technique and completely deflated LMA recommended in the LMA manual. Group 1 Classic: Active Comparator: Group 1 classic Group 1 Using the classic inserting technique and completely deflated LMA recommended in the LMA manual.
Group 2 Pre Inflated
Group 2 (pre-inflated): Using the recommended inserting technique with the pre-inflated volume that exists in a LMA from the manufacturer Group 2 pre-inflated: Group 2 (pre-inflated): Using the recommended inserting technique with the pre-inflated volume that exists in a LMA from the manufacturer.
Group 3 ELL-PIC Technique
Group 3 (ELL-PIC): Using the ELL-PIC technique. Group 3 ELL-PIC: Group 3 (ELL-PIC): Using the ELL-PIC technique
Overall Study
STARTED
150
150
150
Overall Study
COMPLETED
147
145
149
Overall Study
NOT COMPLETED
3
5
1

Reasons for withdrawal

Reasons for withdrawal
Measure
Group 1 Classic
Group 1 Using the classic inserting technique and completely deflated LMA recommended in the LMA manual. Group 1 Classic: Active Comparator: Group 1 classic Group 1 Using the classic inserting technique and completely deflated LMA recommended in the LMA manual.
Group 2 Pre Inflated
Group 2 (pre-inflated): Using the recommended inserting technique with the pre-inflated volume that exists in a LMA from the manufacturer Group 2 pre-inflated: Group 2 (pre-inflated): Using the recommended inserting technique with the pre-inflated volume that exists in a LMA from the manufacturer.
Group 3 ELL-PIC Technique
Group 3 (ELL-PIC): Using the ELL-PIC technique. Group 3 ELL-PIC: Group 3 (ELL-PIC): Using the ELL-PIC technique
Overall Study
Did not receive allocated intervention
3
3
0
Overall Study
Lost to Follow-up
0
2
1

Baseline Characteristics

Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Group 1 Classic
n=150 Participants
Group 1 Using the classic inserting technique and completely deflated LMA recommended in the LMA manual. Group 1 Classic: Active Comparator: Group 1 classic Group 1 Using the classic inserting technique and completely deflated LMA recommended in the LMA manual.
Group 2 Pre Inflated
n=150 Participants
Group 2 (pre-inflated): Using the recommended inserting technique with the pre-inflated volume that exists in a LMA from the manufacturer Group 2 pre-inflated: Group 2 (pre-inflated): Using the recommended inserting technique with the pre-inflated volume that exists in a LMA from the manufacturer.
Group 3 ELL-PIC Technique
n=150 Participants
Group 3 (ELL-PIC): Using the ELL-PIC technique. Group 3 ELL-PIC: Group 3 (ELL-PIC): Using the ELL-PIC technique
Total
n=450 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=147 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
0 Participants
n=145 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
0 Participants
n=149 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
0 Participants
n=441 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
Age, Categorical
Between 18 and 65 years
147 Participants
n=147 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
145 Participants
n=145 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
149 Participants
n=149 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
441 Participants
n=441 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
Age, Categorical
>=65 years
0 Participants
n=147 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
0 Participants
n=145 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
0 Participants
n=149 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
0 Participants
n=441 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
Age, Continuous
45 years
STANDARD_DEVIATION 16 • n=147 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
47 years
STANDARD_DEVIATION 16 • n=145 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
46 years
STANDARD_DEVIATION 16 • n=149 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
46 years
STANDARD_DEVIATION 16 • n=441 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
Sex: Female, Male
Female
58 Participants
n=147 Participants • Subject number is different because of dropout, lost to follow up or changed anesthetic care.
60 Participants
n=145 Participants • Subject number is different because of dropout, lost to follow up or changed anesthetic care.
67 Participants
n=149 Participants • Subject number is different because of dropout, lost to follow up or changed anesthetic care.
185 Participants
n=441 Participants • Subject number is different because of dropout, lost to follow up or changed anesthetic care.
Sex: Female, Male
Male
89 Participants
n=147 Participants • Subject number is different because of dropout, lost to follow up or changed anesthetic care.
85 Participants
n=145 Participants • Subject number is different because of dropout, lost to follow up or changed anesthetic care.
82 Participants
n=149 Participants • Subject number is different because of dropout, lost to follow up or changed anesthetic care.
256 Participants
n=441 Participants • Subject number is different because of dropout, lost to follow up or changed anesthetic care.
Region of Enrollment
United States
147 participants
n=147 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
145 participants
n=145 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
149 participants
n=149 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
450 participants
n=441 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
OMA Insertion attempts
1 attempt
122 Participants
n=147 Participants • The (N) analyzed is lower because of drop outs and change in anesthesic method during the case.
126 Participants
n=145 Participants • The (N) analyzed is lower because of drop outs and change in anesthesic method during the case.
136 Participants
n=149 Participants • The (N) analyzed is lower because of drop outs and change in anesthesic method during the case.
384 Participants
n=441 Participants • The (N) analyzed is lower because of drop outs and change in anesthesic method during the case.
OMA Insertion attempts
2 attempts
21 Participants
n=147 Participants • The (N) analyzed is lower because of drop outs and change in anesthesic method during the case.
16 Participants
n=145 Participants • The (N) analyzed is lower because of drop outs and change in anesthesic method during the case.
12 Participants
n=149 Participants • The (N) analyzed is lower because of drop outs and change in anesthesic method during the case.
49 Participants
n=441 Participants • The (N) analyzed is lower because of drop outs and change in anesthesic method during the case.
OMA Insertion attempts
3 attempts
3 Participants
n=147 Participants • The (N) analyzed is lower because of drop outs and change in anesthesic method during the case.
3 Participants
n=145 Participants • The (N) analyzed is lower because of drop outs and change in anesthesic method during the case.
1 Participants
n=149 Participants • The (N) analyzed is lower because of drop outs and change in anesthesic method during the case.
7 Participants
n=441 Participants • The (N) analyzed is lower because of drop outs and change in anesthesic method during the case.
OMA Insertion attempts
4 attempts
1 Participants
n=147 Participants • The (N) analyzed is lower because of drop outs and change in anesthesic method during the case.
0 Participants
n=145 Participants • The (N) analyzed is lower because of drop outs and change in anesthesic method during the case.
0 Participants
n=149 Participants • The (N) analyzed is lower because of drop outs and change in anesthesic method during the case.
1 Participants
n=441 Participants • The (N) analyzed is lower because of drop outs and change in anesthesic method during the case.
OSA insertion time in seconds
54 Seconds
n=147 Participants • Subjects were lost to follow up or the anesthetic care changed during the surgical procedure.
54 Seconds
n=145 Participants • Subjects were lost to follow up or the anesthetic care changed during the surgical procedure.
56 Seconds
n=149 Participants • Subjects were lost to follow up or the anesthetic care changed during the surgical procedure.
55 Seconds
n=441 Participants • Subjects were lost to follow up or the anesthetic care changed during the surgical procedure.
Duration of OMA device
71 minutes
n=147 Participants • Subjects were lost to follow up or anesthetic management technique changed.
65 minutes
n=145 Participants • Subjects were lost to follow up or anesthetic management technique changed.
62 minutes
n=149 Participants • Subjects were lost to follow up or anesthetic management technique changed.
66 minutes
n=441 Participants • Subjects were lost to follow up or anesthetic management technique changed.
BMI (kg/m∧2 )
27.4 BMI (kg/m∧2 )
STANDARD_DEVIATION 5.2 • n=147 Participants • Subjects lost to follow up or required a different anesthetic regimen during the surgical procedure.
27.7 BMI (kg/m∧2 )
STANDARD_DEVIATION 5.8 • n=145 Participants • Subjects lost to follow up or required a different anesthetic regimen during the surgical procedure.
27.8 BMI (kg/m∧2 )
STANDARD_DEVIATION 5.5 • n=149 Participants • Subjects lost to follow up or required a different anesthetic regimen during the surgical procedure.
27.7 BMI (kg/m∧2 )
STANDARD_DEVIATION 5.6 • n=441 Participants • Subjects lost to follow up or required a different anesthetic regimen during the surgical procedure.
Neck Circumference (cm)
38 centimeters
n=147 Participants • Some subjects may be have been lost to followup or there was a change in anesthetic care during the surgical procedure.
38 centimeters
n=145 Participants • Some subjects may be have been lost to followup or there was a change in anesthetic care during the surgical procedure.
38 centimeters
n=149 Participants • Some subjects may be have been lost to followup or there was a change in anesthetic care during the surgical procedure.
38 centimeters
n=441 Participants • Some subjects may be have been lost to followup or there was a change in anesthetic care during the surgical procedure.
Mallampati Class
Class I
69 participants
n=147 Participants • Some participants may have been lost to follow up, dropped out or there was a change in anesthetic technique during the surgical procedure
60 participants
n=145 Participants • Some participants may have been lost to follow up, dropped out or there was a change in anesthetic technique during the surgical procedure
64 participants
n=149 Participants • Some participants may have been lost to follow up, dropped out or there was a change in anesthetic technique during the surgical procedure
193 participants
n=441 Participants • Some participants may have been lost to follow up, dropped out or there was a change in anesthetic technique during the surgical procedure
Mallampati Class
Class II
39 participants
n=147 Participants • Some participants may have been lost to follow up, dropped out or there was a change in anesthetic technique during the surgical procedure
52 participants
n=145 Participants • Some participants may have been lost to follow up, dropped out or there was a change in anesthetic technique during the surgical procedure
49 participants
n=149 Participants • Some participants may have been lost to follow up, dropped out or there was a change in anesthetic technique during the surgical procedure
140 participants
n=441 Participants • Some participants may have been lost to follow up, dropped out or there was a change in anesthetic technique during the surgical procedure
Mallampati Class
Class III
20 participants
n=147 Participants • Some participants may have been lost to follow up, dropped out or there was a change in anesthetic technique during the surgical procedure
20 participants
n=145 Participants • Some participants may have been lost to follow up, dropped out or there was a change in anesthetic technique during the surgical procedure
24 participants
n=149 Participants • Some participants may have been lost to follow up, dropped out or there was a change in anesthetic technique during the surgical procedure
64 participants
n=441 Participants • Some participants may have been lost to follow up, dropped out or there was a change in anesthetic technique during the surgical procedure
Mallampati Class
Class IV
19 participants
n=147 Participants • Some participants may have been lost to follow up, dropped out or there was a change in anesthetic technique during the surgical procedure
13 participants
n=145 Participants • Some participants may have been lost to follow up, dropped out or there was a change in anesthetic technique during the surgical procedure
12 participants
n=149 Participants • Some participants may have been lost to follow up, dropped out or there was a change in anesthetic technique during the surgical procedure
44 participants
n=441 Participants • Some participants may have been lost to follow up, dropped out or there was a change in anesthetic technique during the surgical procedure
ASA physical status
ASA l
74 ASA STATUS
n=147 Participants • Subject lost to follow up, drop out or there was a change in the anesthetic technique during the surgical procedure.
70 ASA STATUS
n=145 Participants • Subject lost to follow up, drop out or there was a change in the anesthetic technique during the surgical procedure.
70 ASA STATUS
n=149 Participants • Subject lost to follow up, drop out or there was a change in the anesthetic technique during the surgical procedure.
214 ASA STATUS
n=441 Participants • Subject lost to follow up, drop out or there was a change in the anesthetic technique during the surgical procedure.
ASA physical status
ASA ll
67 ASA STATUS
n=147 Participants • Subject lost to follow up, drop out or there was a change in the anesthetic technique during the surgical procedure.
69 ASA STATUS
n=145 Participants • Subject lost to follow up, drop out or there was a change in the anesthetic technique during the surgical procedure.
76 ASA STATUS
n=149 Participants • Subject lost to follow up, drop out or there was a change in the anesthetic technique during the surgical procedure.
212 ASA STATUS
n=441 Participants • Subject lost to follow up, drop out or there was a change in the anesthetic technique during the surgical procedure.
ASA physical status
ASA lll
4 ASA STATUS
n=147 Participants • Subject lost to follow up, drop out or there was a change in the anesthetic technique during the surgical procedure.
4 ASA STATUS
n=145 Participants • Subject lost to follow up, drop out or there was a change in the anesthetic technique during the surgical procedure.
3 ASA STATUS
n=149 Participants • Subject lost to follow up, drop out or there was a change in the anesthetic technique during the surgical procedure.
11 ASA STATUS
n=441 Participants • Subject lost to follow up, drop out or there was a change in the anesthetic technique during the surgical procedure.
ASA physical status
Not documented
2 ASA STATUS
n=147 Participants • Subject lost to follow up, drop out or there was a change in the anesthetic technique during the surgical procedure.
2 ASA STATUS
n=145 Participants • Subject lost to follow up, drop out or there was a change in the anesthetic technique during the surgical procedure.
0 ASA STATUS
n=149 Participants • Subject lost to follow up, drop out or there was a change in the anesthetic technique during the surgical procedure.
4 ASA STATUS
n=441 Participants • Subject lost to follow up, drop out or there was a change in the anesthetic technique during the surgical procedure.
Surgical Procedure Performed
Knee Arthroscopy
95 participants
n=147 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
85 participants
n=145 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
93 participants
n=149 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
273 participants
n=441 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
Surgical Procedure Performed
Shoulder Arthroscopy
29 participants
n=147 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
42 participants
n=145 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
41 participants
n=149 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
112 participants
n=441 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
Surgical Procedure Performed
Elbow Artrhroscopy
8 participants
n=147 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
6 participants
n=145 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
5 participants
n=149 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
19 participants
n=441 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
Surgical Procedure Performed
Other Arthroscopy
7 participants
n=147 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
3 participants
n=145 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
1 participants
n=149 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
11 participants
n=441 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
Surgical Procedure Performed
Breast and skin
2 participants
n=147 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
4 participants
n=145 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
4 participants
n=149 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
10 participants
n=441 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
Surgical Procedure Performed
Hernia Repair
3 participants
n=147 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
1 participants
n=145 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
3 participants
n=149 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
7 participants
n=441 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
Surgical Procedure Performed
Procedure of the eye
3 participants
n=147 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
3 participants
n=145 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
2 participants
n=149 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
8 participants
n=441 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
Surgical Procedure Performed
Other
0 participants
n=147 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
1 participants
n=145 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
0 participants
n=149 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
1 participants
n=441 Participants • Some subjects dropped out. Some of the planned anesthetic techniques were changed during the surgical procedure.
Perioperative opioid use
Intraoperative opioid (morEq milligrams)
10 morphine equivalents milligrams
n=147 Participants • Some subjects dropped out. Some anesthetic techniques were changed during the surgical procedure.
10 morphine equivalents milligrams
n=145 Participants • Some subjects dropped out. Some anesthetic techniques were changed during the surgical procedure.
10 morphine equivalents milligrams
n=149 Participants • Some subjects dropped out. Some anesthetic techniques were changed during the surgical procedure.
10 morphine equivalents milligrams
n=441 Participants • Some subjects dropped out. Some anesthetic techniques were changed during the surgical procedure.
Perioperative opioid use
Postoperative opioid (morEq milligrams))
2.7 morphine equivalents milligrams
n=147 Participants • Some subjects dropped out. Some anesthetic techniques were changed during the surgical procedure.
1.3 morphine equivalents milligrams
n=145 Participants • Some subjects dropped out. Some anesthetic techniques were changed during the surgical procedure.
1.4 morphine equivalents milligrams
n=149 Participants • Some subjects dropped out. Some anesthetic techniques were changed during the surgical procedure.
1.4 morphine equivalents milligrams
n=441 Participants • Some subjects dropped out. Some anesthetic techniques were changed during the surgical procedure.
Perioperative opioid use
Total opioid (morEq milligrams)
15 morphine equivalents milligrams
n=147 Participants • Some subjects dropped out. Some anesthetic techniques were changed during the surgical procedure.
13 morphine equivalents milligrams
n=145 Participants • Some subjects dropped out. Some anesthetic techniques were changed during the surgical procedure.
13 morphine equivalents milligrams
n=149 Participants • Some subjects dropped out. Some anesthetic techniques were changed during the surgical procedure.
13 morphine equivalents milligrams
n=441 Participants • Some subjects dropped out. Some anesthetic techniques were changed during the surgical procedure.
Time to discharge
Phase 1 immediate PACU (minutes)
67 minutes
n=147 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
63 minutes
n=145 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
60 minutes
n=149 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
63 minutes
n=441 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
Time to discharge
Phase 2 PACU transition home (minutes)
90 minutes
n=147 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
95 minutes
n=145 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
95 minutes
n=149 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
93 minutes
n=441 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
Time to discharge
Time to discharge (minutes)
240 minutes
n=147 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
236 minutes
n=145 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
221 minutes
n=149 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.
233 minutes
n=441 Participants • Some subjects were dropped from the study lost to follow up or the anesthetic management plan changed during the surgical procedure.

PRIMARY outcome

Timeframe: 24 hours

The primary outcomes for this study will be postoperative pharyngolaryngeal complications of sore throat as reported by the participant.

Outcome measures

Outcome measures
Measure
Group 1 Classic
n=147 Participants
Group 1 Using the classic inserting technique and completely deflated LMA recommended in the LMA manual. Group 1 Classic: Active Comparator: Group 1 classic Group 1 Using the classic inserting technique and completely deflated LMA recommended in the LMA manual.
Group 2 Pre Inflated
n=145 Participants
Group 2 (pre-inflated): Using the recommended inserting technique with the pre-inflated volume that exists in a LMA from the manufacturer Group 2 pre-inflated: Group 2 (pre-inflated): Using the recommended inserting technique with the pre-inflated volume that exists in a LMA from the manufacturer.
Group 3 ELL-PIC Technique
n=149 Participants
Group 3 (ELL-PIC): Using the ELL-PIC technique. Group 3 ELL-PIC: Group 3 (ELL-PIC): Using the ELL-PIC technique
Number of Subjects Who Present With Postoperative Sore Throat
71 Participants
71 Participants
67 Participants

PRIMARY outcome

Timeframe: 24 hours

The primary outcomes for this study will be postoperative pharyngolaryngeal complications including dysphonia. Difficulty in speaking as assessed by the study team and reported by the participant 24 hours after LMA airway placement.

Outcome measures

Outcome measures
Measure
Group 1 Classic
n=147 Participants
Group 1 Using the classic inserting technique and completely deflated LMA recommended in the LMA manual. Group 1 Classic: Active Comparator: Group 1 classic Group 1 Using the classic inserting technique and completely deflated LMA recommended in the LMA manual.
Group 2 Pre Inflated
n=145 Participants
Group 2 (pre-inflated): Using the recommended inserting technique with the pre-inflated volume that exists in a LMA from the manufacturer Group 2 pre-inflated: Group 2 (pre-inflated): Using the recommended inserting technique with the pre-inflated volume that exists in a LMA from the manufacturer.
Group 3 ELL-PIC Technique
n=149 Participants
Group 3 (ELL-PIC): Using the ELL-PIC technique. Group 3 ELL-PIC: Group 3 (ELL-PIC): Using the ELL-PIC technique
The Primary Outcomes for This Study Will be Postoperative Pharyngolaryngeal Complications Including Dysphonia
39 Participants
31 Participants
25 Participants

PRIMARY outcome

Timeframe: 24 hours

The primary outcomes for this study will be postoperative pharyngolaryngeal complication of dysphagia 24 hours after airway placement. This is assessed by a study team member during the 24 hour follow up or reported by the participant.

Outcome measures

Outcome measures
Measure
Group 1 Classic
n=147 Participants
Group 1 Using the classic inserting technique and completely deflated LMA recommended in the LMA manual. Group 1 Classic: Active Comparator: Group 1 classic Group 1 Using the classic inserting technique and completely deflated LMA recommended in the LMA manual.
Group 2 Pre Inflated
n=145 Participants
Group 2 (pre-inflated): Using the recommended inserting technique with the pre-inflated volume that exists in a LMA from the manufacturer Group 2 pre-inflated: Group 2 (pre-inflated): Using the recommended inserting technique with the pre-inflated volume that exists in a LMA from the manufacturer.
Group 3 ELL-PIC Technique
n=149 Participants
Group 3 (ELL-PIC): Using the ELL-PIC technique. Group 3 ELL-PIC: Group 3 (ELL-PIC): Using the ELL-PIC technique
The Primary Outcomes for This Study Will be Postoperative Dysphagia.
45 Participants
38 Participants
34 Participants

PRIMARY outcome

Timeframe: 24 hours

The primary outcomes for this study will be postoperative pharyngolaryngeal complications including dysphagia, sore throat and dysphonia 24 hours after airway placement.

Outcome measures

Outcome measures
Measure
Group 1 Classic
n=147 Participants
Group 1 Using the classic inserting technique and completely deflated LMA recommended in the LMA manual. Group 1 Classic: Active Comparator: Group 1 classic Group 1 Using the classic inserting technique and completely deflated LMA recommended in the LMA manual.
Group 2 Pre Inflated
n=145 Participants
Group 2 (pre-inflated): Using the recommended inserting technique with the pre-inflated volume that exists in a LMA from the manufacturer Group 2 pre-inflated: Group 2 (pre-inflated): Using the recommended inserting technique with the pre-inflated volume that exists in a LMA from the manufacturer.
Group 3 ELL-PIC Technique
n=149 Participants
Group 3 (ELL-PIC): Using the ELL-PIC technique. Group 3 ELL-PIC: Group 3 (ELL-PIC): Using the ELL-PIC technique
The Primary Outcomes for This Study Will be Postoperative Pharyngolaryngeal Complications Including Dysphagia, Sore Throat and Dysphonia.
83 Participants
80 Participants
78 Participants

SECONDARY outcome

Timeframe: 24 hours

Severity of sore throat 24 hours after airway placement on a 11 point scale of 0-10 ( 0 equals no pain and 10 equals worst pain ever) per recovery hour. Low pain = 0 high pain= 500 composite score (0 to 11 points per hour x 24 hours)

Outcome measures

Outcome measures
Measure
Group 1 Classic
n=147 Participants
Group 1 Using the classic inserting technique and completely deflated LMA recommended in the LMA manual. Group 1 Classic: Active Comparator: Group 1 classic Group 1 Using the classic inserting technique and completely deflated LMA recommended in the LMA manual.
Group 2 Pre Inflated
n=145 Participants
Group 2 (pre-inflated): Using the recommended inserting technique with the pre-inflated volume that exists in a LMA from the manufacturer Group 2 pre-inflated: Group 2 (pre-inflated): Using the recommended inserting technique with the pre-inflated volume that exists in a LMA from the manufacturer.
Group 3 ELL-PIC Technique
n=149 Participants
Group 3 (ELL-PIC): Using the ELL-PIC technique. Group 3 ELL-PIC: Group 3 (ELL-PIC): Using the ELL-PIC technique
Severity of Sore Throat
143 units on a scale
Interval 30.0 to 440.0
143 units on a scale
Interval 24.0 to 440.0
102 units on a scale
Interval 34.0 to 275.0

SECONDARY outcome

Timeframe: Immediately after LMA removal

Presence of blood immediately after the removal of the LMA after surgery.

Outcome measures

Outcome measures
Measure
Group 1 Classic
n=147 Participants
Group 1 Using the classic inserting technique and completely deflated LMA recommended in the LMA manual. Group 1 Classic: Active Comparator: Group 1 classic Group 1 Using the classic inserting technique and completely deflated LMA recommended in the LMA manual.
Group 2 Pre Inflated
n=145 Participants
Group 2 (pre-inflated): Using the recommended inserting technique with the pre-inflated volume that exists in a LMA from the manufacturer Group 2 pre-inflated: Group 2 (pre-inflated): Using the recommended inserting technique with the pre-inflated volume that exists in a LMA from the manufacturer.
Group 3 ELL-PIC Technique
n=149 Participants
Group 3 (ELL-PIC): Using the ELL-PIC technique. Group 3 ELL-PIC: Group 3 (ELL-PIC): Using the ELL-PIC technique
Blood on LMA After Removal
26 Participants
24 Participants
13 Participants

Adverse Events

Group 1 Classic

Serious events: 0 serious events
Other events: 83 other events
Deaths: 0 deaths

Group 2 Pre Inflated

Serious events: 0 serious events
Other events: 80 other events
Deaths: 0 deaths

Group 3 ELLIA Technique

Serious events: 0 serious events
Other events: 78 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Group 1 Classic
n=147 participants at risk
Group 1 Using the classic inserting technique and completely deflated LMA recommended in the LMA manual. Group 1 Classic: Active Comparator: Group 1 classic Group 1 Using the classic inserting technique and completely deflated LMA recommended in the LMA manual.
Group 2 Pre Inflated
n=145 participants at risk
Group 2 (pre-inflated): Using the recommended inserting technique with the pre-inflated volume that exists in a LMA from the manufacturer Group 2 pre-inflated: Group 2 (pre-inflated): Using the recommended inserting technique with the pre-inflated volume that exists in a LMA from the manufacturer.
Group 3 ELLIA Technique
n=149 participants at risk
Group 3 (ELLIA): Using the ELLIA technique. Group 3 ELLIA: Group 3 (ELLIA): Using the ELLIA technique
Respiratory, thoracic and mediastinal disorders
Postoperative Pharyngolaryngeal Complications Including Dysphagia, Sore Throat and Dysphonia.
56.5%
83/147 • Number of events 83 • 24 hours after the airway device removal
55.2%
80/145 • Number of events 80 • 24 hours after the airway device removal
52.3%
78/149 • Number of events 78 • 24 hours after the airway device removal
Respiratory, thoracic and mediastinal disorders
Blood on OMA after removal of the OMA
17.7%
26/147 • Number of events 26 • 24 hours after the airway device removal
16.6%
24/145 • Number of events 24 • 24 hours after the airway device removal
8.7%
13/149 • Number of events 13 • 24 hours after the airway device removal

Additional Information

Ling Hu M.D.

Northwerstern University

Phone: 312-695-3428

Results disclosure agreements

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