NCT00581386

Brief Summary

The purpose of this study is to evaluate a new supra-glottic airway device, the "Disposable Laryngeal Tube Suction" (LTS-D; King Systems, Noblesville, IN). We propose to test its ease of insertion, position within the airway, patency of drain tube and anatomic sealing properties during spontaneous ventilation in anesthetized patients. The study device will be compared to the ProSeal Laryngeal Mask Airway (PLMA, LMA North America Inc.) and the Esophageal Tracheal Combitube (ETC; Tyco Healthcare/Mallinckrodt Nellcor, Pleasanton, Calif).

Trial Health

87
On Track

Trial Health Score

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

Enrollment
218

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started May 2007

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

May 1, 2007

Completed
8 months until next milestone

First Submitted

Initial submission to the registry

December 20, 2007

Completed
7 days until next milestone

First Posted

Study publicly available on registry

December 27, 2007

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2009

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2009

Completed
11 months until next milestone

Results Posted

Study results publicly available

March 4, 2010

Completed
Last Updated

September 20, 2016

Status Verified

August 1, 2016

Enrollment Period

1.9 years

First QC Date

December 20, 2007

Results QC Date

July 28, 2009

Last Update Submit

August 11, 2016

Conditions

Keywords

Endotracheal IntubationSupraglottic Airway

Outcome Measures

Primary Outcomes (6)

  • Duration of Intubation

    The time taken to successfully place the device in seconds.

    duration of intubation

  • Number of Participants With a Successful First Attempt Placement

    The number of patients in whom the assigned device was successfully placed in the first attempt as per protocol.

    Time taken for successful placement

  • Number of Patients Who Required Multiple Attempts.

    The number of repeated attempts required for successfully placing the device. Each device was given a chance of 3 attempts if still unsuccessful after 3 attempts another device was placed.

    Time taken for intubation

  • Leak Pressures

    The maximum leak pressure attained for each device.

    Duration of surgery

  • Post Operative Morbidity

    We followed the patients 2 and 24 hours after the surgery for sore throat, hoarseness and dysphagia.The numbers represented here are the number of patients who reported sore throat at 2 hrs and after 24 hrs as per the protocol.

    2 hrs and 24 hrs after surgery

  • Number of Failed Cases

    We calculated the number of failed cases. As per protocol, that is number of patients in whom successful intubation was not achieved with the assigned device after 3 attempts.

    Time taken for successful intubation

Study Arms (3)

LTS-D

EXPERIMENTAL

All the cases were divided into one of the group LTS-D, PLMA, and ETC

Device: LTS-D

ProSeal Laryngeal Mask Airway

EXPERIMENTAL

All patients were divided into either LTS-D, PLMA, or the ETC group.

Device: ProSeal Laryngeal Mask Airway

Esophageal Tracheal Combitube (ETC)

EXPERIMENTAL

All patients are divided into one of the group, LTS-D, PLMA, or the ETC.

Device: Esophageal Tracheal Combitube (ETC)

Interventions

LTS-DDEVICE

supra-glottic airway device

Also known as: LTS-D King Systems, Noblesville, IN
LTS-D

pre-existing double-lumen supra-glottic device

Also known as: Laryngeal Mask Airway (PLMA, LMA North America Inc.)
ProSeal Laryngeal Mask Airway

disposable double-lumen tube

Also known as: ETC
Esophageal Tracheal Combitube (ETC)

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • The subjects will be adult surgical candidates aged 18-80, ASA I-III, Mallampati I or II, presenting for elective surgery who require general anesthesia in whom tracheal intubation is not necessary.
  • Both male and female patients will be included.

You may not qualify if:

  • Patients will be excluded from the study if they present as Mallampati III or IV, ASA IV-V or emergency status. Additionally, they will be excluded if they meet one of the contraindication criteria of the LMA ProSeal including:
  • Obesity
  • Pregnancy
  • History of gastric regurgitation, heart burn, ileus or "full stomach"
  • History of low pulmonary compliance or high pulmonary resistance
  • Known history of difficult endotracheal intubation or signs suggesting the possibility of difficult intubation
  • Pharyngeal pathology or
  • Upper airway obstruction due to laryngeal pathology.
  • Additionally, they will be excluded if they meet one of the contraindication criteria for the Combitube including:
  • Intact gag reflexes
  • Height \<4 feet
  • Central airway obstruction
  • Recent ingestion of caustic substances
  • Known esophageal pathology, or
  • Known latex allergy.
  • +1 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Memorial Hermann Hospital

Houston, Texas, 77030, United States

Location

MeSH Terms

Interventions

Laryngeal Masks

Intervention Hierarchy (Ancestors)

Intubation, IntratrachealAirway ManagementTherapeuticsIntubationInvestigative TechniquesMasksProtective DevicesEquipment and SuppliesPersonal Protective EquipmentManufactured MaterialsTechnology, Industry, and Agriculture

Results Point of Contact

Title
Dr. Carin A. Hagberg
Organization
UTHSC- Houston Medical School

Study Officials

  • Carin A. Hagberg, M.D.

    The University of Texas Medical School at Houston

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor and Chairman, Joseph C. Gable, MD Endowed Chair

Study Record Dates

First Submitted

December 20, 2007

First Posted

December 27, 2007

Study Start

May 1, 2007

Primary Completion

April 1, 2009

Study Completion

April 1, 2009

Last Updated

September 20, 2016

Results First Posted

March 4, 2010

Record last verified: 2016-08

Locations