Effect of Head Elevation on LMA Insertion
1 other identifier
interventional
110
1 country
1
Brief Summary
The purpose of this study is to compare the first attempt success rate of laryngeal mask airway insertion according to the degree of head elevation.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Feb 2020
Shorter than P25 for not_applicable
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
January 13, 2020
CompletedFirst Posted
Study publicly available on registry
January 18, 2020
CompletedStudy Start
First participant enrolled
February 14, 2020
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 5, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
May 5, 2020
CompletedMay 29, 2020
May 1, 2020
2 months
January 13, 2020
May 27, 2020
Conditions
Outcome Measures
Primary Outcomes (1)
First attempt success rate
The rate of success at the first attempt of laryngeal mask airway insertion
Immediately after mask airway insertion
Secondary Outcomes (7)
The percentage of glottic opening score
Immediately after mask airway insertion
Laryngeal mask airway insertion-related patient satisfaction
At postoperative 6 hours
Second attempt success rate
Immediately after mask airway insertion
Third attempt success rate
Immediately after mask airway insertion
Oropharyngeal leak pressure
Immediately after mask airway insertion
- +2 more secondary outcomes
Study Arms (2)
Evaluation with 14 cm high pillow
EXPERIMENTALWhen inserting laryngeal mask airway, head elevation is performed using a 14 cm high pillow.
Evaluation with 7 cm high pillow
ACTIVE COMPARATORWhen inserting laryngeal mask airway, head elevation is performed using a 7 cm high pillow.
Interventions
Laryngeal mask airway insertion in patients who undergoing transurethral bladder tumor resection
Eligibility Criteria
You may qualify if:
- Patients who are scheduled transurethral bladder tumor resection under general anesthesia
- years of age
- American Society of Anesthesiologists physical status ≤3
- Patients who are voluntarily agreed to this clinical study
You may not qualify if:
- History of difficult airway
- Expected difficult airway by physical examination
- Unstable teeth or teeth loss
- Obesity (body mass index ≥ 30)
- Recent history of upper respiratory infection
- Patients who are not fasted or who are at risk of aspiration
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Asan Medical Center
Seoul, 05505, South Korea
Related Publications (6)
Mohta M. Head elevation beyond sniffing position - An aid to airway management. J Anaesthesiol Clin Pharmacol. 2018 Apr-Jun;34(2):247-248. doi: 10.4103/joacp.JOACP_173_17. No abstract available.
PMID: 30104838BACKGROUNDKatsiampoura AD, Killoran PV, Corso RM, Cai C, Hagberg CA, Cattano D. Laryngeal mask placement in a teaching institution: analysis of difficult placements. F1000Res. 2015 Apr 29;4:102. doi: 10.12688/f1000research.6415.1. eCollection 2015.
PMID: 26401265BACKGROUNDHorton WA, Fahy L, Charters P. Defining a standard intubating position using "angle finder". Br J Anaesth. 1989 Jan;62(1):6-12. doi: 10.1093/bja/62.1.6.
PMID: 2917111BACKGROUNDTakenaka I, Aoyama K, Iwagaki T, Ishimura H, Kadoya T. The sniffing position provides greater occipito-atlanto-axial angulation than simple head extension: a radiological study. Can J Anaesth. 2007 Feb;54(2):129-33. doi: 10.1007/BF03022009.
PMID: 17272252BACKGROUNDJun JH, Baik HJ, Kim JH, Kim YJ, Chang RN. Comparison of the ease of laryngeal mask airway ProSeal insertion and the fiberoptic scoring according to the head position and the presence of a difficult airway. Korean J Anesthesiol. 2011 Apr;60(4):244-9. doi: 10.4097/kjae.2011.60.4.244. Epub 2011 Apr 26.
PMID: 21602973BACKGROUNDPark JY, Yu J, Hong JH, Hwang JH, Kim YK. Head elevation and laryngeal mask airway Supreme insertion: A randomized controlled trial. Acta Anaesthesiol Scand. 2021 Mar;65(3):343-350. doi: 10.1111/aas.13742. Epub 2020 Nov 28.
PMID: 33174199DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Young-Kug Kim, MD, PhD
Asan Medical Center
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, OUTCOMES ASSESSOR
- Purpose
- OTHER
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
January 13, 2020
First Posted
January 18, 2020
Study Start
February 14, 2020
Primary Completion
April 5, 2020
Study Completion
May 5, 2020
Last Updated
May 29, 2020
Record last verified: 2020-05
Data Sharing
- IPD Sharing
- Will not share