NCT05832554

Brief Summary

The goal of this clinical trial is to compare the effects of nasopharyngeal and oropharyngeal airway on gastric insufflation in patients undergoing general anesthesia and expected difficult mask ventilation. The main questions it aims to answer are:

  • Is there a difference between the presence of gastric insufflation in the use of nasopharyngeal and oropharyngeal airways?
  • Is there a difference between the antral area sizes measured before and after ventilation After general anesthesia induction, nasopharyngeal or oropharyngeal airway will be placed in participants and real-time ultrasonographic gastric antral area imaging will be performed during mask ventilation. Researchers will compare the effects of nasopharyngeal and oropharyngeal airway use on gastric insufflation.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
58

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started May 2023

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 15, 2023

Completed
12 days until next milestone

First Posted

Study publicly available on registry

April 27, 2023

Completed
4 days until next milestone

Study Start

First participant enrolled

May 1, 2023

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 24, 2023

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

January 5, 2024

Completed
Last Updated

July 25, 2024

Status Verified

July 1, 2024

Enrollment Period

7 months

First QC Date

April 15, 2023

Last Update Submit

July 24, 2024

Conditions

Keywords

Nasopharyngeal airwayOropharyngeal airwayDifficult airway

Outcome Measures

Primary Outcomes (2)

  • Presence of gastric insufflation

    Presence of gastric insufflation by ultrasound imaging in nasopharyngeal and orophrayngeal airway use

    During 2 minutes mask ventilation

  • Difference in antral area sizes

    Difference in antral area sizes measured by ultrasound imaging before and after ventilation

    During 2 minutes mask ventilation

Secondary Outcomes (1)

  • Leakage volume

    During 2 minutes mask ventilation

Study Arms (2)

Nasopharyngeal airway

ACTIVE COMPARATOR

Patients with nasopharygeal airway placed

Device: nasal airway

Orophryngeal airway

ACTIVE COMPARATOR

Patients with oropharygeal airway placed

Device: oral airway

Interventions

nasopharyngeal airway

Nasopharyngeal airway

oropharyngeal airway

Orophryngeal airway

Eligibility Criteria

Age18 Years - 84 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients receiving general anesthesia
  • ASA score I-II-III
  • At least 3 criteria out of 5 difficult mask criteria defined by Langeron et al.

You may not qualify if:

  • Patients who did not give informed consent
  • Risk of aspiration
  • Respiratory disease
  • Facial, oropharyngeal or nasopharyngeal pathology
  • Pregnancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Ankara Etlik City Hospital

Ankara, 06710, Turkey (Türkiye)

Location

Related Publications (2)

  • Bouvet L, Albert ML, Augris C, Boselli E, Ecochard R, Rabilloud M, Chassard D, Allaouchiche B. Real-time detection of gastric insufflation related to facemask pressure-controlled ventilation using ultrasonography of the antrum and epigastric auscultation in nonparalyzed patients: a prospective, randomized, double-blind study. Anesthesiology. 2014 Feb;120(2):326-34. doi: 10.1097/ALN.0000000000000094.

    PMID: 24317204BACKGROUND
  • Langeron O, Masso E, Huraux C, Guggiari M, Bianchi A, Coriat P, Riou B. Prediction of difficult mask ventilation. Anesthesiology. 2000 May;92(5):1229-36. doi: 10.1097/00000542-200005000-00009.

    PMID: 10781266BACKGROUND

MeSH Terms

Interventions

Continuous Positive Airway Pressure

Intervention Hierarchy (Ancestors)

Positive-Pressure RespirationRespiration, ArtificialAirway ManagementTherapeuticsRespiratory Therapy

Study Officials

  • Derya Ozkan, proff MD

    Ankara Etlik City Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor MD

Study Record Dates

First Submitted

April 15, 2023

First Posted

April 27, 2023

Study Start

May 1, 2023

Primary Completion

November 24, 2023

Study Completion

January 5, 2024

Last Updated

July 25, 2024

Record last verified: 2024-07

Data Sharing

IPD Sharing
Will not share

Locations