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Comparing the effects of 'Cricoid pressure' or 'Paratracheal pressure' during direct laryngoscopy
The effectiveness of cricoid pressure and paratracheal pressure for occluding esophagus during direct and video laryngoscopies.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Cricoid pressure | Experimental | Cricoid pressure is applied in the anesthetized state and during video laryngoscopy |
|
| Paratracheal pressure | Experimental | Paratracheal pressure is applied in the anesthetized state and during video laryngoscopy |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Maneuvers for occluding esophagus | Other | Cricoid pressure: pressure on the cricoid ring Paratracheal pressure: pressure on the left paratracheal region below the cricoid level |
|
| Measure | Description | Time Frame |
|---|---|---|
| Occlusion of the esophagus | 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'. | During 1 minute under videolaryngoscopy |
| Measure | Description | Time Frame |
|---|---|---|
| Outer diameter of the esophagus | Outer diameter of the esophagus is measured using ultrasound before and after the application of cricoid and paratracheal pressures. | During 1 minute after injection of anesthetics during induction of anesthesia |
| Position of the oesophageal entrance relative to the glottis |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Seoul Metropolitan Government Seoul National University Boramae Medical Center | Seoul | 156-707 | South Korea |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 35913721 | Derived | Kim H, Chang JE, Won D, Lee JM, Kim TK, Kim MJ, Min SW, Hwang JY. Effectiveness of Cricoid and Paratracheal Pressures in Occluding the Upper Esophagus Through Induction of Anesthesia and Videolaryngoscopy: A Randomized, Crossover Study. Anesth Analg. 2022 Nov 1;135(5):1064-1072. doi: 10.1213/ANE.0000000000006154. Epub 2022 Aug 1. |
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Position of the oesophageal entrance relative to the glottis is evaluated. |
| During 1 minute after injection of anesthetics during induction of anesthesia and during videolaryngoscopy |
| Position of the upper oesophagus relative to the trachea | Position of the upper oesophagus relative to the trachea trachea is evaluated. | During 1 minute after injection of anesthetics during induction of anesthesia and during videolaryngoscopy |
| The best laryngeal view | The best laryngeal view is evaluated using the percentage of glottis opening (POGO) score, ranging from 0% to 100%. | Before and after the application of cricoid and paratracheal force during videolaryngoscopy |