Anesthesia, Intubation; Difficult or Failed, Obesity
Conditions
Brief 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.
Detailed 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.
Interventions
DEVICEDifficult Intubation
Noted for each patient.
DEVICENot Difficult Intubation
Noted for each patient.
Sponsors
Ankara City Hospital Bilkent
Study design
Observational model
OTHER
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
No
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Suprasternal Adipose Tissue Thickness | within 10 minutes before going into surgery | It is predicted that it may indicate difficult intubation. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Waist circumference | within 10 minutes before going into surgery | Noted for each patient. |
| Arm circumference | within 10 minutes before going into surgery | Noted for each patient. |
| Distance between incisions | within 10 minutes before going into surgery | Noted for each patient. |
| Thyromental distance measurement | within 10 minutes before going into surgery | Noted for each patient. |
| Sternomental distance measurement | within 10 minutes before going into surgery | Noted for each patient. |
| Mallampati Score | within 10 minutes before going into surgery(class 1-4; 1 means good and 4 means bad) | Noted for each patient. |
| Abdominal circumference | within 10 minutes before going into surgery | Noted for each patient. |
| Cormack-Lehane score | 1. minute after intubation(class 1-4; 1 means good and 4 means bad) | Noted for each patient. |
| Age | within 10 minutes before going into surgery | Noted for each patient. |
| Sex | within 10 minutes before going into surgery | Noted for each patient. |
| ASA | within 10 minutes before going into surgery(grades 1-6; 1 means good and 6 means bad) | Noted for each patient. |
| BMI | within 10 minutes before going into surgery | Noted for each patient. |
| Wilson score | within 10 minutes before going into surgery(grade 0-10; 0 means good, 10 means bad) | Noted for each patient. |
Countries
Turkey (Türkiye)
Outcome results
None listed