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The purpose of this study is to assess the adequacy of mask ventilation with the different sized-oropharyngeal airway.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| No. 7 oral airway | Experimental |
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| No. 8 oral airway | Experimental |
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| No. 9 oral airway | Active Comparator |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| No. 7 oral airway | Device | the use of 7 cm sized-oropharyngeal airway (Guedel-type color coded oropharyngeal airway, Hudson RCI, Teleflex Medical, Research Triangle Park, NC) |
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| Measure | Description | Time Frame |
|---|---|---|
| the proportion of patients whose oropharyngeal airway is proper | The oropharyngeal airway will be inserted into the patient's mouth. Investigators will check the laryngeal view using fiberoptic bronchoscope and the adequacy of ventilation after the investigator ventilates the patient using the face mask. If both the laryngeal view and ventilation are appropriate, the size of oropharyngeal airway will be considered as the proper size for the patient. | up to 10 minutes after the start of anesthetic induction |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Department of Anesthesiology and Pain MedicineSeverance Hospital, Yonsei University Health System | Seoul | Korea | 120-752 | South Korea |
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| No. 8 oral airway | Device | the use of 8 cm sized-oropharyngeal airway (Guedel-type color coded oropharyngeal airway, Hudson RCI, Teleflex Medical, Research Triangle Park, NC) |
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| No. 9 oral airway | Device | the use of 9 cm sized-oropharyngeal airway (Guedel-type color coded oropharyngeal airway, Hudson RCI, Teleflex Medical, Research Triangle Park, NC) |
|