Airway ManagementNCT03033979
Prolonged Laryngeal Mask Airway ProSealTM Use
An observational study of Airway Management, run by Schulthess Klinik at 1 site in Switzerland.
Trial 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. Read more about this study
- Who is it for?
- Ages 19 to 85 years
- Conditions the study is for
- Airway Management
- How many people
- 7 participants
- Where
- 1 siteSwitzerland
- Study dates
- 1 Jan 2015to 31 Dec 2015
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 19 to 85 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: We describe the use of the LMA ProSealTM in seven patients in a variety of clinical situations for procedures lasting more than 5 hours.
Who may be able to join
- ASA 1 - 3
- Age 19-85 yr
- Written informed consent
Who cannot join
- Difficult airway
- Non fasted
- BMI > 35
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Prolonged Use of the Laryngeal Mask Airway ProSealTM: a Report of Seven Cases Lasting 5-11 Hours
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.
Read the 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.
- Conditions
- Airway Management
What is being measured
The primary outcome is the main question the study is designed to answer.
Feasibility of the LMA ProSealTM for prolonged use
Oropharyngeal leak pressure
Measured: 30 Minutes
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Jan 2017 (estimated)
- Study start1 Jan 2015
- Primary completion31 Dec 2015
- Study completion31 Dec 2015
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Airway ManagementStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case only
- Time perspective
- Retrospective
- Enrolment
- 7 participants (actual)
Sponsor and investigators
- Lead sponsor
- Schulthess Klinik
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03033979
- Sponsor's protocol ID
- Schulthess_Anä_9
- Status last verified
- Jan 2017
- First submitted
- 25 Jan 2017
- Last updated
- 27 Jan 2017
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 27 Jan 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Prolonged Use of the Laryngeal Mask Airway ProSealTM: a Report of Seven Cases Lasting 5-11 Hours
- ClinicalTrials.gov ID
- NCT03033979
- Acronym / sponsor ID
- Schulthess_Anä_9
- Conditions
- Airway Management
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 7 participants (actual)
- Lead sponsor
- Schulthess KlinikUniversity, hospital or other
- Study start
- 1 Jan 2015 (actual)
- Primary completion
- 31 Dec 2015 (actual)
- Study completion
- 31 Dec 2015 (actual)
- First posted
- 27 Jan 2017 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Study design
- Observational model
- Case only
- Time perspective
- Retrospective
Who may qualify
- Ages
- 19 to 85 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- We describe the use of the LMA ProSealTM in seven patients in a variety of clinical situations for procedures lasting more than 5 hours.
Key inclusion criteria (3 listed)
- ASA 1 - 3
- Age 19-85 yr
- Written informed consent
Key exclusion criteria (3 listed)
- Difficult airway
- Non fasted
- BMI > 35
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Feasibility of the LMA ProSealTM for prolonged use
Time frame: 30 Minutes
Oropharyngeal leak pressure
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 27 Jan 2017.
- Individual participant dataSharing planned: No
Related trials for Airway Management
Not yet recruiting
Comparison of Second- and Third-Generation Laryngeal Mask Airway in Pediatric Patients
Airway Management, Anesthesia, General
Not yet recruiting
Title of Study: Anesthesiologists' Learning Curves for Ultrasound Assessment of Difficult Airway
Airway Ultrasound, Difficult Airway Management
Not yet recruitingObservational study
LeHeR Maneuver vs Sniffing Position During Video Laryngoscopy in Predicted Difficult Airway
Difficult Airway, Difficult Intubation
Not yet recruitingObservational study
Sniffing Position vs Left Head Rotation (LeHeR) Maneuver for Glottic View During Direct Laryngoscopy
Difficult Intubation, Laryngoscopy
Not yet recruitingPhase 4
Effect of Neuromuscular Blocking Agent Use on Video Laryngeal Mask Airway Insertion
Airway Management, Supraglottic Airway Device Insertion
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Airway Management, run by Schulthess Klinik at 1 site in Switzerland.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 27 Jan 2017. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Switzerland. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Feasibility of the LMA ProSealTM for prolonged use (time frame: 30 Minutes). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Jan 2017; AzTrials last refreshed its copy on 6 Nov 2026.