Actively Recruiting

Age: 18Years - 65Years
All Genders
ID07316179

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

Age: 18Years - 65Years
All Genders

Eligibility Criteria

Eligible

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
Not Eligible

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

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

1 visit (in-person)

Diagnostic Evaluation

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

Surgery and Immediate Post-operative Care

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)

Post-operative Follow-up

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

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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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