The Role of Anthropometric Measurements and Ultrasonograpic Suprasternal Adipose Tissue Thickness

Obesity Clinical Trial

Official title:

Predicting Difficult Intubation in Obese Patients: The Role of Anthropometric Measurements and Ultrasonograpic Suprasternal Adipose Tissue Thickness

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT06457165
• Other study ID #: Difficult Intubation
• Status: Completed
• Start date: January 1, 2021
• Est. completion date: January 1, 2024

Study information

• Verified date: June 2024
• Source: Ankara City Hospital Bilkent
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

Prediction of difficult preoperative intubation in obese patients and completion of preparations for difficult intubation both reduce the risk of repeated intubation and prevent complications.

In this study, the investigators aimed to evaluate whether anthropometric measurements are superior in defining difficult preoperative airways.

Description:

The World Health Organization (WHO) defines obesity, the incidence of which has increased significantly worldwide and is one of the important causes of difficult airway in terms of anesthesia, as obesity when the body mass index (BMI) is above 30. Access to the upper airway is difficult in obese patients, in whom excessive adipose tissue accumulates in the breast, neck, chest, and abdomen. Determining preoperative difficult intubation parameters in obese patients and entering the case preparation both reduce the risk of repeated intubation and prevent intraoperative and postoperative complications.

However, there are still insufficient tests to predict difficult intubation. Many studies have shown that multiple factors such as Mallampati score, high body mass index (BMI), increased neck circumference, and the ratio of neck circumference to thyromental distance are predictors of difficult intubation in obese patients. The introduction of ultrasonography into daily use has led to the use of ultrasonographic parameters in predicting difficult intubation and laryngoscopy. In this study, the investigators aimed to evaluate whether ultrasonography is useful in defining difficult preoperative airways, in addition to anthropometric measurements.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 40
• Est. completion date: January 1, 2024
• Est. primary completion date: January 1, 2022
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years to 60 Years

Eligibility

Inclusion Criteria:

• 18-60 years

• ASA 1-3

• BMI =30 kg/m2

• ASA 1-3

• Scheduled for elective abdominal surgery under general anesthesia

Exclusion Criteria:

• <18 and >60 years

• ASA>3

• BMI<30

Related Conditions & MeSH terms

• Anesthesia
• Intubation; Difficult or Failed
• Obesity

Intervention

Device:
• Difficult Intubation
Noted for each patient.
• Not Difficult Intubation
Noted for each patient.

Locations

Country	Name	City	State
Turkey	Ankara Bilkent City Hospital	Ankara

Sponsors (1)

Lead Sponsor	Collaborator
Ankara City Hospital Bilkent

Country where clinical trial is conducted

Turkey, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Suprasternal Adipose Tissue Thickness	It is predicted that it may indicate difficult intubation.	within 10 minutes before going into surgery
Secondary	Abdominal circumference	Noted for each patient.	within 10 minutes before going into surgery
Secondary	Waist circumference	Noted for each patient.	within 10 minutes before going into surgery
Secondary	Arm circumference	Noted for each patient.	within 10 minutes before going into surgery
Secondary	Distance between incisions	Noted for each patient.	within 10 minutes before going into surgery
Secondary	Thyromental distance measurement	Noted for each patient.	within 10 minutes before going into surgery
Secondary	Sternomental distance measurement	Noted for each patient.	within 10 minutes before going into surgery
Secondary	Mallampati Score	Noted for each patient.	within 10 minutes before going into surgery(class 1-4; 1 means good and 4 means bad)
Secondary	Wilson score	Noted for each patient.	within 10 minutes before going into surgery(grade 0-10; 0 means good, 10 means bad)
Secondary	Cormack-Lehane score	Noted for each patient.	1. minute after intubation(class 1-4; 1 means good and 4 means bad)
Secondary	Age	Noted for each patient.	within 10 minutes before going into surgery
Secondary	Sex	Noted for each patient.	within 10 minutes before going into surgery
Secondary	ASA	Noted for each patient.	within 10 minutes before going into surgery(grades 1-6; 1 means good and 6 means bad)
Secondary	BMI	Noted for each patient.	within 10 minutes before going into surgery