Effectiveness of Cricoid and Paratracheal Pressures for Occluding Esophagus in Anesthetized and Paralyzed Patients During the Induction of Anesthesia
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Enrollment
- 40
- Locations
- 1
- Primary Endpoint
- Occlusion of the esophagus
Study Overview
Brief Summary
Comparing the effects of 'Cricoid pressure' or 'Paratracheal pressure' during direct laryngoscopy
Detailed Description
The effectiveness of cricoid pressure and paratracheal pressure for occluding esophagus during direct and video laryngoscopies.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Crossover
- Primary Purpose
- Prevention
- Masking
- None
Eligibility Criteria
- Ages
- 19 Years to — (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •Who would be scheduled any surgery under general anesthesia and agree with the purpose of the study
Exclusion Criteria
- •Risk of aspiration
- •History of esophageal surgery
- •Diseases or anatomical abnormalities of the neck, larynx, pharynx or esophagus
- •Known or predicted difficult airway.
Arms & Interventions
Cricoid pressure
Cricoid pressure is applied in the anesthetized state and during video laryngoscopy
Intervention: Maneuvers for occluding esophagus (Other)
Paratracheal pressure
Paratracheal pressure is applied in the anesthetized state and during video laryngoscopy
Intervention: Maneuvers for occluding esophagus (Other)
Outcomes
Primary Outcomes
Occlusion of the esophagus
Time Frame: During 1 minute under videolaryngoscopy
Occlusion of the esophagus is checked with the application of cricoid and paratracheal pressures using esophageal stethoscope. If the esophageal stethoscope is not advanced into the esophagus, it is considered 'occlusion'.
Secondary Outcomes
- Position of the upper oesophagus relative to the trachea(During 1 minute after injection of anesthetics during induction of anesthesia and during videolaryngoscopy)
- Outer diameter of the esophagus(During 1 minute after injection of anesthetics during induction of anesthesia)
- The best laryngeal view(Before and after the application of cricoid and paratracheal force during videolaryngoscopy)
- Position of the oesophageal entrance relative to the glottis(During 1 minute after injection of anesthetics during induction of anesthesia and during videolaryngoscopy)
Investigators
Jin-Young Hwang
Associate professor
SMG-SNU Boramae Medical Center