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Nasal Intubation Using King Vision Video Laryngoscopy

Comparison King Vision Video Laryngoscopy 、McGrath MAC Video Laryngoscopy With Macintosh Laryngoscopy for Nasal Intubation

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03126344
Enrollment
99
Registered
2017-04-24
Start date
2017-06-01
Completion date
2018-01-05
Last updated
2020-09-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Nasal Intubation

Keywords

King Vision

Brief summary

This study was designed to determine the comparison between the King Vision video laryngoscope 、 McGrath MAC video laryngoscope and Macintosh laryngoscope for nasotracheal intubation.Patients were divided into 3 groups of 30 patients each.Patients of King Vision group \[n=30\]、 McGrath MAC group \[n=30\] and Macintosh group\[n=30\]were intubated using respective devices.This study is the first to search the use of King Vision video laryngoscope for nasotracheal intubation.

Interventions

nasal intubation using King Vision video laryngoscope Device after general anesthesia induction

nasal intubation using McGrath MAC video laryngoscope Device after general anesthesia induction

DEVICEMacintosh laryngoscope

nasal intubation using Macintosh laryngoscope Device after general anesthesia induction

Sponsors

Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

* ASA physical status 1-2 * general anesthesia with nasotracheal intubation * anticipated difficult airway

Exclusion criteria

* contraindications to nasal intubation * Patients with a history of anti-hypertensive drugs

Design outcomes

Primary

MeasureTime frameDescription
Time to Intubation0 min after nasal intubationthe interval between opening the mouth and the time when three consecutive end-tidal CO2 waves were appeared on the monitor

Secondary

MeasureTime frameDescription
Laryngoscopy Timeafter expose the glottistime to expose the glottis
Number of Participants With Complications24h after surgerysore throat, hoarseness, etc

Countries

China

Participant flow

Participants by arm

ArmCount
King Vision Video Laryngoscope
King Vision video laryngoscope: nasal intubation using King Vision video laryngoscope Device after general anesthesia induction
33
McGrath MAC Video Laryngoscope
McGrath MAC video laryngoscope: nasal intubation using McGrath MAC video laryngoscope Device after general anesthesia induction
33
Macintosh
Macintosh laryngoscope: nasal intubation using Macintosh laryngoscope Device after general anesthesia induction
33
Total99

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyLost to Follow-up005

Baseline characteristics

CharacteristicKing Vision Video LaryngoscopeMcGrath MAC Video LaryngoscopeMacintoshTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
33 Participants33 Participants33 Participants99 Participants
Age, Continuous38 year
STANDARD_DEVIATION 12
36 year
STANDARD_DEVIATION 11
40 year
STANDARD_DEVIATION 11
38 year
STANDARD_DEVIATION 11
ASA I or II33 Participants33 Participants33 Participants99 Participants
BMI22 Kg/M^2
STANDARD_DEVIATION 3
22 Kg/M^2
STANDARD_DEVIATION 3
22 Kg/M^2
STANDARD_DEVIATION 3
22 Kg/M^2
STANDARD_DEVIATION 3
Race and Ethnicity Not Collected0 Participants
Region of Enrollment
China
33 participants33 participants33 participants99 participants
Sex: Female, Male
Female
15 Participants19 Participants16 Participants50 Participants
Sex: Female, Male
Male
18 Participants14 Participants17 Participants49 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 330 / 330 / 33
other
Total, other adverse events
6 / 339 / 3321 / 33
serious
Total, serious adverse events
0 / 330 / 330 / 33

Outcome results

Primary

Time to Intubation

the interval between opening the mouth and the time when three consecutive end-tidal CO2 waves were appeared on the monitor

Time frame: 0 min after nasal intubation

ArmMeasureValue (MEAN)Dispersion
King Vision Video LaryngoscopeTime to Intubation37.6 secondStandard Deviation 7.3
McGrath MAC Video LaryngoscopeTime to Intubation35.4 secondStandard Deviation 8.8
MacintoshTime to Intubation46.8 secondStandard Deviation 10.4
Secondary

Laryngoscopy Time

time to expose the glottis

Time frame: after expose the glottis

ArmMeasureValue (MEAN)Dispersion
King Vision Video LaryngoscopeLaryngoscopy Time16.7 secondStandard Deviation 5.5
McGrath MAC Video LaryngoscopeLaryngoscopy Time15.6 secondStandard Deviation 6.3
MacintoshLaryngoscopy Time22.8 secondStandard Deviation 7.2
Secondary

Number of Participants With Complications

sore throat, hoarseness, etc

Time frame: 24h after surgery

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
King Vision Video LaryngoscopeNumber of Participants With Complications6 Participants
McGrath MAC Video LaryngoscopeNumber of Participants With Complications7 Participants
MacintoshNumber of Participants With Complications21 Participants

Source: ClinicalTrials.gov · Data processed: Feb 20, 2026