General Anesthesia
Conditions
Keywords
Airway Management, Ventilation
Brief summary
The purpose of this study is to assess the facial measurements for determining the proper sizes of oropharyngeal airway. Investigators hypothesized that the length between incisors and mandible angle is more appropriate to estimate the size of oropharyngeal airway compared with the length between mouth corner and mandible angle.
Interventions
DEVICEthe length between incisor and mandible angle
the use of oropharyngeal airway (Guedel-type color coded oropharyngeal airway, Hudson RCI, Teleflex Medical, Research Triangle Park, NC) which size is the length between incisor and mandible angle
DEVICEthe length between mouth corner-mandible angle
the use of oropharyngeal airway (Guedel-type color coded oropharyngeal airway, Hudson RCI, Teleflex Medical, Research Triangle Park, NC) of which size is the length between mouth corner and mandible angle
Sponsors
Yonsei University
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
20 Years to 80 Years
Healthy volunteers
No
Inclusion criteria
* adult patients undergoing surgery that requires general anesthesia
Exclusion criteria
* anticipated difficult intubation * patients without teeth or with loose teeth * cervical spine disease * upper airway disease * body mass index over 35 kg/m2 * pregnancy
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| proper size of oropharyngeal airway | up to 10 minutes after the start of anesthetic induction | 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 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. |
Countries
South Korea
Outcome results
None listed