Comparison in Difficult Airway Scenario Induced in Patients With Laryngeal Mask Airway (LMA)-Classic™, LMA™ - Flexible and LMA - Proseal™

Status

Completed

Phases

Phase 4

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT02979171

Enrollment

Registered

2016-12-01

Start date

2016-03-31

Completion date

2016-06-30

Last updated

2016-12-01

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

Conditions

Difficult Airway

Brief summary

Supraglottic airway tools, one of the tools used in the management of the difficult airway. American Society of Anesthesiologists and the Difficult Airway Society of the United Kingdom airway management algorithms have included the LMA. In our study investigators aimed to determine which one will show the best performance with supraglottic airway means that LMA - Classic, LMA - Flexible and LMA - ProSeal in patients that difficult airway scenarios created with attaching collar.

Interventions

DEVICELaryngeal Mask Airway Classic

Study design

Allocation

RANDOMIZED

Intervention model

CROSSOVER

Primary purpose

PREVENTION

Masking

SINGLE (Subject)

Eligibility

Sex/Gender

ALL

Age

18 Years to 80 Years

Healthy volunteers

Yes

Inclusion criteria

* Without a history of difficult intubation, supine position, does not require tracheal intubation, undergo elective surgery

Exclusion criteria

* High aspiration risk, who take more than 4 hours surgery * Body mass index greater than of 35 kg/m² * Disease related to the cervical spine * The mouth opening is less than 20 mm

Design outcomes

Primary

Measure	Time frame	Description
insertion time and attempts in min.	through study completion, an average of 6 months	—
oropharyngeal leak pressure in cmH20.	through study completion, an average of 6 months	—
fiberoptic view grade by Brimacombe and Berry bronchoscopy score	through study completion, an average of 6 months	score1-4 (easy to difficult)

Countries

Turkey (Türkiye)

Outcome results

None listed

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