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The sniffing position has been regarded as a standard position for direct laryngoscopic view. This study evaluated the effects of the age and gender on the advantage of the sniffing position compared with simple head extension for laryngeal view during direct laryngoscopy.
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| Measure | Description | Time Frame |
|---|---|---|
| the percentage of glottic opening | during laryngoscopy |
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Inclusion Criteria:
Exclusion Criteria:
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adult patients who are scheduled for elective surgery under general anesthesia
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Kyung Hee University Gangdong Hospital | Seoul | South Korea |
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