Comparison Four Intubation Devices

Comparison of Tracheal Intubation Using the Miller, Macintosh, Phillips and Wis-Hipple Blades During Infant Resuscitation: A Randomized Crossover Simulation Trial

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT02280213

Enrollment

145

Registered

2014-10-31

Start date

2014-11-30

Completion date

2015-01-31

Last updated

2015-02-03

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

Conditions

Intubation

Brief summary

Comparison of four laryngoscope blades (Miller, Macintosh, Phillips and Wis-Hipple) for infant intubation during resuscitation with and without chest compressions.

Interventions

DEVICEMIL

Direct laryngoscopy 1

DEVICEMAC

Direct laryngoscopy 2

DEVICEWIS

Direct laryngoscopy 3

DEVICEPHIL

Direct laryngoscopy 4

Study design

Allocation

RANDOMIZED

Intervention model

CROSSOVER

Primary purpose

TREATMENT

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

18 Years to 65 Years

Healthy volunteers

Yes

Inclusion criteria

* give voluntary consent to participate in the study * paramedics * no clinical experience in infant intubation

Exclusion criteria

* not meet the above criteria * wrist or low back diseases * pregnancy.

Design outcomes

Primary

Measure	Time frame	Description
Time to intubation	1 day	time from insertion of the blade to the first manual ventilation of the manikin´s lungs. If time of intubation is over than 60 seconds, attempt was recognized as failure.

Secondary

Measure	Time frame	Description
Cormack-Lehane grading	1 day	self-reported percentage the vocal cord visualization using the Cormack-Lehane grading (grade 1-4)
dental compression	1 day	pressure applied on the upper teeth (n=none, mild=1, moderate=2, severe=3)
Success of intubation	1 day	effectiveness of the first, second and third intubation attempts and overall effectiveness of intubation by participants using four intubation devices. If the examinee failed at all attempts, the case was excluded from the time calculations.
Ease of Use	1 day	To access subjective opinions about the difficulty of the each intubation method, participants were asked to give a rating on a visual analogue scale (VAS) with a score from 1 (extremely easy) to 10 (extremely difficult).
POGO score	1 day	The POGO score describes how much glottic opening is visible. A POGO score of 100% indicates visualization of the entire glottic opening from the anterior commissure of the vocal cords to the interarytenoid notch. A POGO score of 0% corresponds with no visualization of laryngeal structures.

Countries

Poland

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026