Obese Patients
Conditions
Brief summary
Ultrasound is one of the most useful devices in daily anesthesia practice. Latest purpose of ultrasound usage is prediction of difficult intubation. In this study, we aimed to predict difficult laryngoscopy and intubation by using ultrasound measurement of neck soft tissue thickness in obese patient preoperatively.
Detailed description
In this prospective and randomized controlled study, mallampati scores, interincisor gap, thyromental distance, neck circumference measurement and upper lip bite test scores will be recorded in sixty obese patients. Additionally, neck tissue thickness will be recorded at 4 different levels (hyoid bone-skin distance, epiglot-skin distance , thyroid istmus-skin distance, vocal cord-skin distance) after the sniffing position by ultrasound with the linear probe. All measurements will be repeated three times and an average values will be recorded. After all this measurements, endotracheal intubation will be performed by an experienced anesthetist who is uninformed about study. During intubation the Cormack Lehane (C/L, grade 1: full view of the vocal cords; grade 2a: partial view of the glottis; 2b: posterior part of the vocal cord and arytenoids visible; grade 3: only epiglottis visible; and grade 4: neither epiglottis nor glottis visible) and the Intubation Difficulty Scale (IDS) score (the numbers of attempts, operators, and alternative techniques used, the C/L grade of laryngoscopic view, lifting force and external laryngeal manipulation required, and position of the vocal cords. Every insertion of the laryngoscope and advancement of the tracheal tube towards the glottis counted as an attempt. A score of \>5 indicates moderate-to-major difficulty) will be recorded.
Interventions
None listed
Sponsors
Diskapi Yildirim Beyazit Education and Research Hospital
Study design
Observational model
OTHER
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes
Inclusion criteria
* BMI\>30 * 18-65 YEARS * ASA 1-2-3 * Obese patients
Exclusion criteria
* Pregnancy * Upper airway pathology * Cervical spine pathology * Laryngeal pathology
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Hyoid bone-skin distance -effect of ultrasound on prediction of difficult laryngoscopy | 30 minutes before induction | The hyoid bone-skin distance will be measured by using ultrasound in centimeters |
| Epiglottis-skin distance | 30 minutes before induction | The epiglottis-skin distance will be measured by using ultrasound in centimeters |
| Thyroid isthmus-skin distance | 30 minutes before induction | The thyroid isthmus-skin distance will be measured by using ultrasound in centimeters |
| Vocal cord-skin distance | 30 minutes before induction | The vocal cord-skin distance will be measured by using ultrasound in centimeters |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Intubation difficulty scale score | 1 minutes after intubation | Each number of numbers attempt, operator and alternative techniques used, the Cormack Lehane score of laryngoscopic view, lifting force and external laryngeal manipulation required, and position of the vocal cords count 1 point. A score of \>5 indicates moderate-to-major difficulty |
Countries
Turkey (Türkiye)
Contacts
Primary ContactBasak Gulel
Backup ContactEmine Arik
Outcome results
None listed