Evaluation of Difficult Airway With Ultrasonography
1 other identifier
observational
128
1 country
1
Brief Summary
As a result of anatomical and physiological changes in obese patients, airway management can be challenging. Ultrasound measurement of neck anterior soft tissues combined with recommended predictive tests may increase the ability to predict the difficult airway. In this study we planned to evaluate the measurement of neck anterior soft tissues by ultrasound in obese patients before anesthesia induction to anticipate difficult mask ventilation, difficult laryngoscopy, and intubation.
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 Aug 2020
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
First Submitted
Initial submission to the registry
February 27, 2020
CompletedFirst Posted
Study publicly available on registry
February 28, 2020
CompletedStudy Start
First participant enrolled
August 20, 2020
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 11, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
March 11, 2022
CompletedMarch 14, 2022
March 1, 2022
1.6 years
February 27, 2020
March 11, 2022
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Difficult Mask Ventilation
Difficult mask ventilation will be evaluated with Han scale \[(1) can be ventilated with a mask; 2) can be ventilated with the airway (with or without muscle relaxation); 3) difficult mask ventilation (insufficient, unstable, two practitioners are needed); 4) cannot be ventilated by mask\] and grade 3-4 will be recorded as difficult mask ventilation.
''1 minute'' (During anesthesia induction)
Secondary Outcomes (3)
Difficult laryngoscopy
''1 minute''
Difficult intubation
''1 minute''
The duration of endotracheal intubation time
1 minute
Study Arms (1)
Obese patients
Obese patients with BMI\>30
Interventions
Distance between hyoid bone-skin
Vocal cord anterior commissura-skin distance
Distance of the trachea to the skin at the level of suprasternal notch
Thyroid isthmus-skin distance
Skin-epiglottic distance
Eligibility Criteria
A hundred twenty-eight patients, aged 18-65 years-old, with an American Anesthesiology Association physical classification (ASA) I-III and body mass index (BMI) above 30 and planned to undergo general anesthesia for elective surgery, will be included in the study.
You may qualify if:
- Patients planned to undergo general anesthesia for elective surgery
- American Anesthesiology Association physical classification (ASA) status I-III
- Body mass index (BMI) above 30
You may not qualify if:
- Patients with neck mass
- History of previous neck and thyroid surgery, trauma, arthritis, loss of teeth
- History of difficult intubation
- Bearded patients
- Pregnant women
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Eskisehir Osmangazi Univercty
Odunpazari, Eskişehir, 26040, Turkey (Türkiye)
Related Publications (7)
Wu J, Dong J, Ding Y, Zheng J. Role of anterior neck soft tissue quantifications by ultrasound in predicting difficult laryngoscopy. Med Sci Monit. 2014 Nov 18;20:2343-50. doi: 10.12659/MSM.891037.
PMID: 25403231BACKGROUNDEzri T, Gewurtz G, Sessler DI, Medalion B, Szmuk P, Hagberg C, Susmallian S. Prediction of difficult laryngoscopy in obese patients by ultrasound quantification of anterior neck soft tissue. Anaesthesia. 2003 Nov;58(11):1111-4. doi: 10.1046/j.1365-2044.2003.03412.x.
PMID: 14616599BACKGROUNDLiang H, Hou Y, Wei H, Feng Y. Supraglottic jet oxygenation and ventilation assisted fiberoptic intubation in a paralyzed patient with morbid obesity and obstructive sleep apnea: a case report. BMC Anesthesiol. 2019 Mar 20;19(1):40. doi: 10.1186/s12871-019-0709-7.
PMID: 30894124BACKGROUNDMurphy C, Wong DT. Airway management and oxygenation in obese patients. Can J Anaesth. 2013 Sep;60(9):929-45. doi: 10.1007/s12630-013-9991-x. Epub 2013 Jul 9.
PMID: 23836064BACKGROUNDLundstrom LH, Moller AM, Rosenstock C, Astrup G, Wetterslev J. High body mass index is a weak predictor for difficult and failed tracheal intubation: a cohort study of 91,332 consecutive patients scheduled for direct laryngoscopy registered in the Danish Anesthesia Database. Anesthesiology. 2009 Feb;110(2):266-74. doi: 10.1097/ALN.0b013e318194cac8.
PMID: 19194154BACKGROUNDChung F, Subramanyam R, Liao P, Sasaki E, Shapiro C, Sun Y. High STOP-Bang score indicates a high probability of obstructive sleep apnoea. Br J Anaesth. 2012 May;108(5):768-75. doi: 10.1093/bja/aes022. Epub 2012 Mar 8.
PMID: 22401881BACKGROUNDAlessandri F, Antenucci G, Piervincenzi E, Buonopane C, Bellucci R, Andreoli C, Alunni Fegatelli D, Ranieri MV, Bilotta F. Ultrasound as a new tool in the assessment of airway difficulties: An observational study. Eur J Anaesthesiol. 2019 Jul;36(7):509-515. doi: 10.1097/EJA.0000000000000989.
PMID: 31742568BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Meryem Onay, MD
Teaching Assistant
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Specialist Doctor-Anesthesiologist
Study Record Dates
First Submitted
February 27, 2020
First Posted
February 28, 2020
Study Start
August 20, 2020
Primary Completion
March 11, 2022
Study Completion
March 11, 2022
Last Updated
March 14, 2022
Record last verified: 2022-03