None listed
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Over 19 years Patients who will undergo elective surgery under general anesthesia American society of Anesthesiologist (ASA) physical classification I or II Patients who agree to participate in the study
Exclusion criteria
Exclusion criteria: American society of Anesthesiologist (ASA) physical classification = III History of cervical spine surgery or herniated intervertebral disc Possibility of difficult mask ventilation Need of awake intubation Risk of regurgitation and pulmonary aspiration Craniofacial anomaly History of severe burn in cervical area Patients who reject to participate or cannot agree to the informed consent
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Time from mask off to detecting EtCO2 at the monitor | — |
Secondary
| Measure | Time frame |
|---|---|
| Time from mask off to detecting vocal cord via bronchoscope monitor;Time from mask off to detecting carina via bronchoscope monitor;numbers of maneuver trial;Airway clearnce at the soft palate level;Airway clearnce at the epiglottis level;Numbers of entotracheal tube advance trial;Tissue injury related to intubation;severity of postoperative sore throat | — |
Countries
Korea, Republic of
Contacts
Seoul National University Bundang Hospital