Actively Recruiting
A Prospective Observational Study Comparing the El Ganzouri Risk Index and Airway Ultrasonography in Predicting Difficult Intubation in Patients Undergoing Bariatric Surgery
Led by Antalya Training and Research Hospital · Updated on 2026-03-09
52
Participants Needed
1
Research Sites
8 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
This research aims to evaluate and compare two methods for predicting difficult intubation in adults undergoing bariatric surgery. The study focuses on the El Ganzouri Risk Index (EGRI), a scoring system using various airway assessment factors, and airway ultrasonography (USG), a non-invasive imaging technique measuring airway structures. The goal is to understand how these methods relate to the Cormack-Lehane (CL) score obtained during direct laryngoscopy, which assesses intubation difficulty, to improve preoperative airway management and patient safety. Participants will be adults scheduled for elective bariatric surgery who will undergo preoperative airway evaluations using both the EGRI scoring system and airway USG. Tracheal intubation will then be performed under general anesthesia using direct laryngoscopy. During the surgery, clinicians will record the CL grade, intubation time, number of attempts, and any need for video-assisted laryngoscopy. Data collected will be analyzed to compare the predictive accuracy of EGRI and airway USG, and their correlation with intraoperative airway visualization. Throughout the study, participants will be assessed before surgery using clinical scoring and ultrasound imaging to gather airway data. During surgery, detailed observations on intubation performance will be documented by anesthesiologists. The research team will analyze these measures to determine which preoperative assessment better predicts difficult intubation. This observational study is conducted at a training and research hospital and aims to enhance airway evaluation techniques for bariatric surgery patients.
CONDITIONS
Brief Title
Predicting Difficult Intubation in Bariatric Surgery: Comparison of El Ganzouri Risk Index and Airway Ultrasound
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Adult patients aged 18 to 65 years
- ASA physical status classification II or III
- Scheduled to undergo elective bariatric surgery under general anesthesia
- Patients who voluntarily agree to participate and sign the informed consent form
You will not qualify if you...
- Patients younger than 18 years or older than 65 years
- Presence of upper airway anatomical pathology
- History of tracheal or thyroid surgery
- History of radiotherapy to the head and neck region
- Cervical spine anomalies
- Individuals unwilling to participate in the study
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 - Preoperative period
Participants undergo preoperative airway assessments using the El Ganzouri Risk Index (EGRI) scoring system and airway ultrasonography to predict difficult intubation.
1 visit (in-person) prior to surgery
Duration - Day of surgery and immediate post-operative period
Participants undergo bariatric surgery with tracheal intubation performed under general anesthesia using direct laryngoscopy. Intubation difficulty is assessed during this period.
1 perioperative visit (in-person)
Duration - Up to 30 minutes after surgery start
Participants are monitored for clinical outcomes related to intubation performance and any early intraoperative hemodynamic instability.
Assessment during surgery and immediate recovery
Trial Site Locations
Total: 1 location
1
Antalya Training and Research Hospital
Antalya, Antalya, Turkey (Türkiye), 07050
Actively Recruiting
Research Team
E
Ece Ilayda Tekdemir
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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