NCT02334072

Brief Summary

Even though the effects of anesthetic agents both inhalation and intravenous have been well described, the effect of laryngeal mask airways haven't. The purpose of the study is to determine the effects of different types of laryngeal mask airways on middle ear pressure.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
100

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jan 2015

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2015

Completed
4 days until next milestone

First Submitted

Initial submission to the registry

January 5, 2015

Completed
3 days until next milestone

First Posted

Study publicly available on registry

January 8, 2015

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2015

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2015

Completed
Last Updated

June 23, 2015

Status Verified

June 1, 2015

Enrollment Period

7 months

First QC Date

January 5, 2015

Last Update Submit

June 22, 2015

Conditions

Outcome Measures

Primary Outcomes (1)

  • Middle ear pressure changes after the device application (MEP)

    Perioperative

Secondary Outcomes (1)

  • Composite Hemodynamics

    Perioperative

Study Arms (5)

Classical

EXPERIMENTAL

Laryngeal mask airway (LMA) is manufactured from medical grade silicone rubber and is reusable. It consists of 3 main components: An airway tube, inflatable mask and mask inflation line. The airway tube is slightly curved to match the oropharyngeal anatomy, semirigid to facilitate atraumatic insertion and semitransparent, so that condensation and regurgitated material is visible. The distal aperture of the airway tube opens into the lumen of an inflatable mask and is protected by two flexible vertical rubber bars, called mask aperture bars, to prevent the epiglottis from entering and obstructing the airway. The laryngeal mask classical application will be done following anesthesia induction.

Device: Laryngeal mask classical application

I-Gel

EXPERIMENTAL

I-Gel LMA is anatomically designed mask made of a gel-like thermoplastic elastomer. It has a drain tube for gastric aspiration. I-gel laryngeal mask application will be done following anesthesia induction.

Device: I-gel laryngeal mask application

Cobra

EXPERIMENTAL

Cobra LMA consists of a translucent silicone airway tube with an inflatable cuff sited approximately two-thirds of the way to the tip, a 15-mm standard adapter and an expanded distal end with a smooth posterior surface. The cuff forms a seal in the upper pharynx and the distal end sits in the laryngopharynx. The distal grill is designed to sit over the laryngeal inlet.Cobra laryngeal mask application will be done following induction of anesthesia

Device: Cobra laryngeal mask application

Supreme

EXPERIMENTAL

The Supreme LMA is a single-use polyvinyl chloride supraglottic device. High oropharyngeal leak pressures are important as they indicate airway protection, feasibility of positive pressure ventilation and likelihood of successful LMA placement.Supreme laryngeal mask application will be done following induction of anesthesia and anesthesia.

Device: Supreme laryngeal mask application

Proseal

EXPERIMENTAL

The ProSeal LMA is the most complex of the specialized laryngeal mask devices.The primary design goal was to construct a laryngeal mask with improved ventilatory characteristics that also offered protection against regurgitation and gastric insufflation. The principal new features are a modified cuff and a drain tube.Proseal laryngeal mask application will be done following induction of anesthesia and anesthesia.

Device: Proseal laryngeal mask application

Interventions

Laryngeal mask classical application will be done following induction of anesthesia and anesthesia will be conducted by this device.

Classical

I-gel laryngeal mask application will be done following induction of anesthesia and anesthesia will be conducted by this device.

I-Gel

Cobra laryngeal mask application will be done following induction of anesthesia and anesthesia will be conducted by this device.

Cobra

Supreme laryngeal mask application will be done following induction of anesthesia and anesthesia will be conducted by this device.

Supreme

Proseal laryngeal mask application will be done following induction of anesthesia and anesthesia will be conducted by this device.

Proseal

Eligibility Criteria

Age1 Day - 18 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Elective patients undergoing subumbilical surgery under general anesthesia

You may not qualify if:

  • Emergency conditions
  • Rejection of patient approval
  • Tympanic membrane perforation history
  • Anticipated difficult airway
  • Contraindications for LMA application

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Adiyaman University Research Hospital

Adıyaman, 02000, Turkey (Türkiye)

RECRUITING

Study Officials

  • Ruslan Abdullayev

    Adiyaman University Research Hospital

    STUDY DIRECTOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Dr

Study Record Dates

First Submitted

January 5, 2015

First Posted

January 8, 2015

Study Start

January 1, 2015

Primary Completion

August 1, 2015

Study Completion

September 1, 2015

Last Updated

June 23, 2015

Record last verified: 2015-06

Locations