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Examining the Effects of Anthropometric Measurements on Difficult Airway Prediction

NCT07077317 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 1044

Last updated 2025-11-25

No results posted yet for this study

Summary

Airway-related complications are among the leading causes of anesthesia-associated morbidity and mortality. Therefore, the ability to predict difficult mask ventilation, laryngoscopy, and intubation before induction is essential to ensure proper preparation in patients at risk and avoid unnecessary airway manipulations in low-risk individuals. While numerous studies have focused on predicting difficult intubation, most have limited sample sizes and do not consider postoperative critical respiratory events.

In this prospective observational clinical study, we aim to investigate the relationship between commonly used preoperative airway assessment tools-including anthropometric measurements, Mallampati score, and the STOP-Bang questionnaire for obstructive sleep apnea-and the incidence of difficult mask ventilation, difficult laryngoscopy (Cormack-Lehane grading), difficult intubation, and critical respiratory events in the postoperative period.

The study will include adult patients (≥18 years) classified as ASA I-IV undergoing surgery under general anesthesia with endotracheal intubation. Data will be collected preoperatively, intraoperatively, and in the post-anesthesia care unit (PACU) by experienced anesthesia personnel. Postoperative critical respiratory events are defined as unexpected hypoxemia, hypoventilation, reintubation, or interventions required for upper/lower airway obstruction.

Conditions

  • Difficult Airway
  • Difficult Airway Intubation
  • Airway Management

Interventions

OTHER

Airway Assessment Using Standard Clinical Tools

Preoperative airway evaluation using routine physical measurements (e.g., Mallampati score, neck circumference, STOP-Bang questionnaire), and intraoperative/postoperative observation of airway-related parameters.

Sponsors & Collaborators

  • Kutahya Health Sciences University

    lead OTHER

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-08-13
Primary Completion
2025-10-30
Completion
2025-11-11

Countries

  • Turkey (Türkiye)

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07077317 on ClinicalTrials.gov