Laryngeal Mask, Video Laryngoscopy

The Role of Video Laryngoscope in Laryngeal Mask Placement

LMA insertion provide an intact airway for many surgeries during general anesthesia . LMA insertion technique was defined when it was first produced by Archie Brain . Accordingly, it is recommended to advance the device to the level where resistance is felt blindly. However, placing LMA may not always be smooth and uncomplicated. Thus, gas leaks may occur and intragastric pressure increase may occur due to gastric insufflation. To overcome these difficulties, the placement of the LMA under direct vision using a laryngoscope has been described in several studies . Previous studies have shown that the reliability of the laryngeal mask can be demonstrated by the oropharyngeal cuff leak test . In addition, the classification of the image of the laryngeal structures mediated by fiberoptic imaging and vocal cords from the LMA gives us information about the availability of effective positive pressure ventilation.

Study Overview

• Status: Completed
• Conditions: Difficult Intubation
• Intervention / Treatment: Device: larengeal mask insertion with video laryngoscopy; Other: laryngeal mask insertion

Detailed Description

LMA insertion provide an intact airway for many surgeries during general anesthesia . LMA insertion technique was defined when it was first produced by Archie Brain . Accordingly, it is recommended to advance the device to the level where resistance is felt blindly. However, placing LMA may not always be smooth and uncomplicated. Thus, gas leaks may occur and intragastric pressure increase may occur due to gastric insufflation. To overcome these difficulties, the placement of the LMA under direct vision using a laryngoscope has been described in several studies . Previous studies have shown that the reliability of the laryngeal mask can be demonstrated by the oropharyngeal cuff leak test . In addition, the classification of the image of the laryngeal structures mediated by fiberoptic imaging and vocal cords from the LMA gives us information about the availability of effective positive pressure ventilation.In cases where difficulties are found in laryngeal mask placement, using direct laryngoscope or videosingoscope, placement is frequently applied in anesthesia practice. Kim GW et al investigated LMA placement with direct laryngoscope. However, there is no study investigating the effectiveness of videongoscopes. Videoingoscopes have wide viewing angles through their cameras located at the blade tips. For this reason, we think that it will be advantageous in placing a laryngeal mask.

• Study Type: Observational
• Enrollment (Actual): 100

Contacts and Locations

Study Locations

• Turkey
  • Kartal
    • İstanbul, Kartal, Turkey, 34000
      • Tahsin Şimşek

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 65 years (Adult, Older Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

ASA1,2,3 group patients to insertion of laryngeal mask

Description

Inclusion Criteria:

• Patients between 18-65 years old
• ASA1,2,3 group patients
• Patients undergoing general anesthesia Patients scheduled for elective surgery

Exclusion Criteria:

• The patient's refusal to participate in the study
• Contraindication for placement of the laryngeal mask

Study Plan

How is the study designed?

Number of groups / cohorts

2

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
video laryngoscopy; video laryngoscope is a camera laryngoscope system used to see the larynx with camera	Device: larengeal mask insertion with video laryngoscopy; it is a method of inserting a laryngeal mask into the airway with videolaryngoscopy
laryngoscopy; laryngoscopy is a method used to see the larynx.	Other: laryngeal mask insertion; laryngeal mask is a method of inserting atube into the upper airway

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
The role of Videeolaryngoscope in Placement of Laryngeal Mask	video laryngoscopy use in Larengeal Mask insertion, prevent complications of Larengeal mask.	the study will comlete in two month

Collaborators and Investigators

• Sponsor: Kocaeli Derince Education and Research Hospital

Study record dates

Study Major Dates

• Study Start (Actual): January 20, 2021
• Primary Completion (Actual): February 20, 2021
• Study Completion (Actual): February 27, 2021

Study Registration Dates

• First Submitted: March 10, 2020
• First Submitted That Met QC Criteria: March 15, 2020
• First Posted (Actual): March 17, 2020

Study Record Updates

• Last Update Posted (Actual): August 24, 2021
• Last Update Submitted That Met QC Criteria: August 20, 2021
• Last Verified: August 1, 2021

More Information

Terms related to this study

• Keywords: laryngeal mask
• Other Study ID Numbers: 2019/514/150/21

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No