STOP-Bang Score and Factors Predicting Difficult Intubation for Prediction of Difficult Mask Ventilation in Obese Patients

Khon Kaen University278 enrolled

Overview

The goal of this prospective observational study is to test combination of STOP-Bang score and factors predicting difficult intubation can improve accuracy of prediction difficult mask ventilation in obese patients that undergoing to elective surgery under general anesthesia. The main question\[s\] it aims to answer are: * Can combination of STOP-Bang score and factors predicting difficult intubation improve accuracy of prediction difficult mask ventilation in obese patients? * Study about complication after endotracheal tube insertion in obese patients that undergoing to elective surgery under general anesthesia. Participants who undergoing to elective surgery under general anesthesia will * Routine preoperative evaluation and ask about STOP bang questions, evaluate neck circumference, Mallampati grade,Thyromental distance (That routine physical examination for anesthetic care pre-operation) * In operation room, patients will be inducted anesthesia by anesthesiologist (step routine for general anesthesia),observe difficult mask ventilation grading before intubate endotracheal tube and complication after endotracheal tube insertion. If there is a comparison group: Researchers will compare obese patients with/without high STOP bang score \>=3 point plus factor predicting difficult intubation (Mallampati grade 3-4, Neck circumference \> 42 cm, Thyromental distance \< 6 cm)to prediction difficult mask ventilation

Study Type

OBSERVATIONAL

Enrollment

278

Conditions

Obesity OSA

Interventions

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

Inclusion Criteria: * BMI ≥ 25 kg/m2 * Age \> 18 years old * undergoing elective surgery under general anesthesia with endotracheal intubation Exclusion Criteria: * History of difficult mask and intubation * Maxillofacial or upper airway malformation * History of C-spine disease such as trauma, degeneration * Pregnancy * Rapid sequence induction technique

Outcomes

Primary Outcomes

Difficult mask ventilation

Difficult Mask Ventilation Grading (by Han et al.) Grade 1 mask ventilation can be easily performed by a single person Grade 2 requires the use of equipment such as an oropharyngeal airway Grade 3 necessitates the involvement of two or more personnel for mask ventilation or increasing oxygen flow Grade 4 indicates an inability to perform mask ventilation If the grade is ≥ 3, it signifies difficult mask ventilation

Time frame: After the induction of general anesthesia, observe the assisted mask ventilation. End the collection of the primary outcome before endotracheal tube intubation.

Secondary Outcomes

Resipiratory complication

1. Airway trauma 2. Desaturation Spo2\<90% in 2 minutes 3. Regurgitation 4. Aspiration

Time frame: during mask ventilation until the completion of intubation.