Effectiveness of Cricoid Pressure During Videolaryngoscopy Versus Direct Laryngoscopy

Comparison of the Effectiveness of Cricoid Pressure on Upper Esophageal Obstruction During Videolaryngoscopy Versus Direct Laryngoscopy: a Randomized, Crossover Study

Compare the success rate of upper esophageal obstruction with cricoid pressure during videolaryngoscopy and direct laryngoscopy.

Even with appropriate cricoid pressure, the lifting force of the laryngoscope during direct laryngoscopy for tracheal intubation may counteract the cricoid pressure, making esophageal obstruction ineffective. Compared to direct laryngoscopy, videolaryngoscopy requires less lifting force, and thus, the success rate of esophageal obstruction may be higher. This study aims to compare the success rate of upper esophageal obstruction with cricoid pressure during videolaryngoscopy and direct laryngoscopy.

Inclusion Criteria:

• Adult patients scheduled to have general anesthesia with tracheal intubation

Exclusion Criteria:

• Gastroesophageal reflux disease, achalasia, bowel obstruction,
• BMI > 35 kg/m2
• Uncontrolled diabetes
• Pregnancy
• Previous esophageal, and gastric surgery
• Dental damage or anticipated difficult airways
• Who do not consent to the study