Skip to content

Prolonged Laryngeal Mask Airway ProSealTM Use

Prolonged Use of the Laryngeal Mask Airway ProSealTM: a Report of Seven Cases Lasting 5-11 Hours

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03033979
Enrollment
7
Registered
2017-01-27
Start date
2015-01-01
Completion date
2015-12-31
Last updated
2017-01-27

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

Conditions

Airway Management

Brief summary

The investigators conclude that use of the LMA ProSealTM for prolonged procedures is feasible. In principle, it should be safer and more effective than the LMA ClassicTM provided basic guidelines are followed.

Detailed description

There is controversy concerning use of the classic laryngeal mask airway (LMA ClassicTM) for prolonged procedures, particularly over 2 hours, as some clinicians consider it unsuitable for positive pressure ventilation (needed to counter the alleged progressive respiratory fatigue with time) and/or unsuitable for airway protection (needed to counter the alleged progressive increase in aspiration risk with time). The LMA ProSealTM is a laryngeal mask device with a modified cuff to facilitate ventilation and a drain tube to provide airway protection. In principle, the LMA ProSealTM should be more suitable than the LMA ClassicTM for prolonged procedures; however, there are only four reports and one case series.

Interventions

None listed

Sponsors

Schulthess Klinik
Lead SponsorOTHER

Study design

Observational model
CASE_ONLY
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
19 Years to 85 Years
Healthy volunteers
No

Inclusion criteria

* ASA 1 - 3 * Age 19-85 yr * Written informed consent

Exclusion criteria

* Difficult airway * Non fasted * BMI \> 35

Design outcomes

Primary

MeasureTime frameDescription
Feasibility of the LMA ProSealTM for prolonged use30 MinutesOropharyngeal leak pressure

Countries

Switzerland

Outcome results

None listed

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