The Effect of Thyromental Height and Other Difficult Airway Evaluation Parameters

Airway Complication of Anesthesia Clinical Trial

Official title:

The Effect of Thyromental Height and Other Difficult Airway Evaluation Parameters on Laryngeal Mask Placement Success Rate in Elderly Patients

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT05673707
• Other study ID #: LMA
• Status: Recruiting
• Start date: July 1, 2022
• Est. completion date: January 30, 2023

Study information

• Verified date: December 2022
• Source: Diskapi Yildirim Beyazit Education and Research Hospital
• Contact: savas altinsoy
• Phone: +903125962523
• Email: savasaltinsoy[@]gmail.com
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

Many changes occur in the body with age. There are difficulties in endotracheal intubation and the placement of supraglottic airway devices (LMA) in elderly patients due to changes in the tooth and facial structure, and a decrease in temporomandibular joint and neck movements. In the literature, there are studies on the relationship between thyromental height measurement and endotracheal intubation difficulty, but there is no study on the relationship between thyromental height measurement and laryngeal mask placement difficulty.

Description:

Age, gender, height, body weight, body mass index, type of operation, and Mallampati score are recorded in the preoperative evaluations of all patients. For anthropometric measurements, thyromental height, thyromental distance, sterno-mental distance, neck circumference, and mouth opening are measured. After the laryngeal mask is placed after the induction of anesthesia, the location of the LMA is checked with the FOB (fiberoptic bronchoscopy). Ease of insertion was subjectively assessed using a grading score of 1-4 (1, no resistance; 2, mild resistance; 3, moderate resistance; 4, inability to insert the device) by the attending anesthesiologist who inserted the device. After successful placement of the device, the adjustable pressure limiting (APL) valve is adjusted to 30 cm H2O at 3L/minute fresh gas flow, and the airway pressure and leakage amount are measured.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 100
• Est. completion date: January 30, 2023
• Est. primary completion date: July 30, 2022
• Accepts healthy volunteers: No
• Gender: All
• Age group: 65 Years to 90 Years

Eligibility

Inclusion Criteria:

• over 65 years old

• elective operation

• using laryngeal mask device

Exclusion Criteria:

• younger than 65 years old

• urgent or emergency operation

• morbidity obese

• contraindications of all laryngeal mask devices using

Related Conditions & MeSH terms

• Airway Complication of Anesthesia

Intervention

Diagnostic Test:
• Thyromental Height
its measure between thyroid and mentum

Locations

Country	Name	City	State
Turkey	Department of Anesthesiology and Reanimation, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital	Ankara

Sponsors (1)

Lead Sponsor	Collaborator
Diskapi Yildirim Beyazit Education and Research Hospital

Country where clinical trial is conducted

Turkey, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	laryngeal mask placement success	The correlation between preoperative thyromental height measurement and laryngeal mask placement success	during insertion