McGRATH vs Macintosh Laryngoscopy Comparison in LMA Insertion

Comparison Between McGRATH and Macintosh Laryngoscopy in Laryngeal Mask Airway Insertion

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT04509453

Acronym

GRAN-PALM

Enrollment

102

Registered

2020-08-12

Start date

2020-08-30

Completion date

2020-11-01

Last updated

2020-12-17

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

Conditions

Intubation Complication, Intubation;Difficult, Anesthesia

Keywords

successful intubation, classic LMA, video laryngoscopy, difficulty, cuff pressure leak

Brief summary

Various techniques have been developed to get a good LMA position, one of them is using a laryngoscope. The most popular laryngoscope used for LMA installation is the Macintosh type. Technological developments have brought laryngoscopes into the video era, one of which is McGRATH's laryngoscope, which from several studies about having an advantage in terms of the first attempt, time, complications, and hemodynamic stability of intubation. It needs to be proven through research on the comparison of clinical outcomes of LMA installation with McGrath laryngoscope and Macintosh laryngoscope.

Interventions

DEVICEMcGRATH laryngoscopy

Patients who underwent general anesthesia with LMA insertion by using McGRATH video layngoscopy

DEVICEMacintosh laryngoscopy

Patients who underwent general anesthesia with LMA insertion by using classic Macintosh video layngoscopy

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

OTHER

Masking

DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender

ALL

Age

18 Years to 65 Years

Healthy volunteers

Inclusion criteria

* Patients underwent surgery with general anesthesia by LMA insertion in Sanglah General Hospital * Agreed to be included in the study by signing informed consent * American Society of Anesthesiologist physical status 1-2

Exclusion criteria

* Patients unfit for LMA insertion * Patients with suspected airway management difficulty * Pregnancy * Morbid obese

Design outcomes

Primary

Measure	Time frame	Description
Number of participants with first-attempt success	immediately after LMA insertion	Successful LMA insertion within first attempt
Mean arterial pressure	immediately after LMA insertion	Mean arterial pressure measured by non-invasive blood pressure monitor
Heart rate	immediately after LMA insertion	Heart rate measured by standard monitor

Secondary

Measure	Time frame	Description
Time required	immediately after LMA insertion	Time required for LMA insertion using the respective method
Complications	An hour after the the end of surgery	Incidence of hoarseness or throat pain due to LMA insertion

Countries

Indonesia

Outcome results

None listed

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