Does Neck Circumference Help to Predict Difficult Airway in Obstetric Patients?
1 other identifier
observational
94
1 country
1
Brief Summary
Failed intubation and ventilation in obstetrics remains one of the most common causes of death directly related to anesthesia. The reported incidence of failed intubation in obstetrics is 1:300, which is significantly higher than that in the non-obstetric population. A clinical screening test with high sensitivity and specificity for prediction of difficult airway may help reduce morbidity and mortality from general anesthesia. Few studies have identified increased neck circumference as the best single predictor of problematic intubation. However the cutoff point of this test for identifying patients at high risk of difficult intubation is not clear. The aim of this study is to determine the optimal cutoff point, which validates prediction of difficult ventilation and/or intubation for obstetric patients. Preoperative airway assessment will be done including neck circumference. Intraoperative difficult ventilation and/or intubation will be recorded. Optimal cutoff point of neck circumference will be calculated by Receiver Operating characteristics (ROC) curve.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Jan 2015
Shorter than P25 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 1, 2015
CompletedFirst Submitted
Initial submission to the registry
January 18, 2015
CompletedFirst Posted
Study publicly available on registry
February 19, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2015
CompletedStudy Completion
Last participant's last visit for all outcomes
June 1, 2015
CompletedJuly 3, 2015
July 1, 2015
5 months
January 18, 2015
July 2, 2015
Conditions
Outcome Measures
Primary Outcomes (1)
Difficult intubation
Difficult intubation defined as Intubation difficulty scale (IDS) \>5
5 minutes
Eligibility Criteria
patients scheduled for cesarean section under general anesthesia
You may qualify if:
- Patients scheduled for cesarean section under general anesthesia
You may not qualify if:
- Patients with upper airway pathology
- Patients with cervical spine abnormality
- Emergency cesarean section
- Known cases of difficult intubation
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Corniche Hospital
Abu Dhabi, 3788, United Arab Emirates
Related Publications (1)
Adnet F, Borron SW, Racine SX, Clemessy JL, Fournier JL, Plaisance P, Lapandry C. The intubation difficulty scale (IDS): proposal and evaluation of a new score characterizing the complexity of endotracheal intubation. Anesthesiology. 1997 Dec;87(6):1290-7. doi: 10.1097/00000542-199712000-00005.
PMID: 9416711BACKGROUND
Study Officials
- PRINCIPAL INVESTIGATOR
Waleed Riad, MD
Corniche Hospital
- PRINCIPAL INVESTIGATOR
Tarek Ansari, FFARCSI
Corniche Hospital
- PRINCIPAL INVESTIGATOR
Nanda Shetty, MD
Corniche Hospital
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 18, 2015
First Posted
February 19, 2015
Study Start
January 1, 2015
Primary Completion
June 1, 2015
Study Completion
June 1, 2015
Last Updated
July 3, 2015
Record last verified: 2015-07