Difficult Airway Prediction by Integrating STOP-BANG Criteria
Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18-60
SponsorSindh Institute of Urology and Transplantation
About this trial
This study is being done to determine the diagnostic accuracy of the STOP-BANG questionnaire in predicting difficult mask ventilation and intubation among obese patients.
During the preoperative assessment, eligible participants will be enrolled in the study. The modified Mallampati score, thyromental distance, mouth opening, and upper lip bite tests will be performed along with STOP-Bang scores.
Later in the operating room, general anesthesia will be given, and bag-mask ventilation and intubation grade will be assessed and recorded. A correlation will be assessed between the difficult airway assessment findings, along with the STOP-BANG score and the bas-mask difficulty scores and intubation grades.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Male & Female aged 18-60 years.
Body mass index 30 or more
American Society of Anesthesiologists (ASA) status II-III.
Scheduled for elective surgery under general anesthesia with endotracheal intubation.
Disqualifiers
Patients' refusal to participate.
American Society of Anesthesiologists (ASA) IV & V.
Neuromuscular diseases or facial abnormalities.
Cardiothoracic, head and neck, or emergency surgery.
Trial population
* Male \& Female aged 18-60 years. * Body mass index 30 or more * American Society of Anesthesiologists (ASA) status II-III. * Scheduled for elective surgery under general anesthesia with endotracheal intubation.
Trial design
Design model
Cohort
Time perspective
Cross-sectional
Treatments tested in this trial
Not listed
Trial groups
No trial groups listed
Trial outcomes
Primary outcomes
1
Adequate Bag-Mask Ventilation
When an anesthetized patient is being manually ventilated by an anesthesia bag and a face mask and achieving a tidal volume of 5 ml/kg, it will be called adequate mask ventilation. * Easy if a single anesthesiologist achieves visible adequate chest rise and an end-tidal CO₂ graph. * Moderately difficult, if there is a slight chest rise, a low end-tidal CO₂ graph, but peripheral oxygen saturation is maintained above 97%. * Difficult if there is no visible chest rise, minimal or no end-tidal CO₂ graph, or if peripheral oxygen saturation drops to less than 95% but becomes normal with use of an oral airway (Guedel airway) or a laryngeal mask airway (LMA), or if two anesthesia providers are required for adequate mask ventilation. * Very difficult if peripheral oxygen saturation drops to 90% or less despite the use of airway adjuncts (Guedel airway or LMA).
Time frame
Only once, after giving general anesthesia but before an endotracheal tube is put in the trachea2
Difficult Tracheal Intubation
Difficult tracheal intubation will be defined as, one that requires external laryngeal manipulation, laryngoscopy requiring more than 3 attempts at intubation, intubation requiring nonstandard equipment or approaches, or the inability to intubate at all
Time frame
Only once, after giving general anesthesia and 3-minute bag-mask ventilation for adequate muscle relaxation effect, then direct laryngoscopy will be performed to put the endotracheal tube in the tracheaSponsors and contacts
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Source ClinicalTrials.gov