Actively Recruiting
Enhancing Difficult Laryngoscopy Prediction: A Prospective Study on a Mixed Scoring System Using Ultrasound and Traditional Metrics
Led by American University of Beirut Medical Center · Updated on 2025-02-21
1100
Participants Needed
1
Research Sites
N/A
Total Duration
On this page
AI-Summary
What this Trial Is About
Researchers are evaluating a new comprehensive scoring system that combines traditional bedside clinical tests with ultrasound measurements to predict difficult airways in adult patients undergoing general anesthesia. The study aims to validate this mixed scoring system by testing it on a large group of patients with various American Society of Anesthesiologists (ASA) classifications, including both emergency and elective cases. This research addresses the limitations of existing airway assessment scores, which sometimes fail to identify difficult airways accurately. The study involves collecting traditional airway assessment metrics such as the Modified Mallampati score, inter-incisor distance, upper lip bite test, neck measurements, and other physical features. Alongside these, ultrasound measurements including distances from skin to epiglottis, hyomental distance, tongue thickness, and vocal cord distances will be recorded. These data are gathered the day before surgery in preoperative units or patient rooms by experienced team members. After anesthesia induction, the difficulty of laryngoscopy will be assessed, and statistical analyses will identify the most predictive measures to develop a validated scoring system. Participants will undergo standard airway assessments and ultrasound scans before surgery, followed by evaluation during laryngoscopy. Researchers will analyze the data to determine sensitivity, specificity, and predictive values of various criteria. They will also perform logistic regression to identify independent predictors and establish cutoff values for the score. The main outcome measured is the number of patients experiencing difficult laryngoscopy within 20 minutes following the scan. The study is conducted at a single center, with plans for future broader validation.
CONDITIONS
Brief Title
Enhancing Difficult Laryngoscopy Prediction Through A Mixed Scoring System
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Adult patients undergoing general anesthesia
- American Society of Anesthesiologists (ASA) classification 1-4
- Emergency or elective cases
You will not qualify if you...
- Patients with confirmed history of difficult airway
- Patients with maxillofacial trauma or cervical spine injury or instability
- Pregnant patients
- Patients with a history of head and neck cancer
- Patients with known subglottic stenosis
- Patients requiring a double lumen tube insertion
- Patients with a history of neck radiotherapy
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Your Study Journey
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - 1 day
Participants undergo traditional bedside clinical tests and ultrasound measurements to assess airway characteristics the day before surgery.
1 visit (in-person)
Duration - Day of surgery
Following airway assessment, participants are observed during surgery to document the level of difficulty of laryngoscopy after anesthesia induction.
1 visit (in-person)
Trial Site Locations
Total: 1 location
1
American University of Beirut Medical Center
Beirut, Lebanon
Actively Recruiting
Research Team
N
Nancy Abou Nafeh, MD
T
Thouraya HajAli
How is the study designed?
Study Type
OBSERVATIONAL
Masking
N/A
Allocation
N/A
Model
N/A
Primary Purpose
N/A
Number of Arms
0
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