None listed
Conditions
Interventions
None listed
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Male patients with positive predictive factors such as, Mallampati class 3 or 4, thyromental distance =65 mm, or a small or receding mandible and Patients without positive predictors and who match the age and body mass index of the difficult laryngoscope group
Exclusion criteria
Exclusion criteria: (1) Amedican society of anesthesiologist class =III, (2) history of cervical herniated intervertebral disc or cervical spine surgery, (3) dentured teeth, (4) history of psychological disease or psychoactive drug use, and (5) craniofacial anomaly
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| difference of TM length between easy and difficult laryngoscope ;difference of MI length between easy and difficult laryngoscope ;difference of IT length between easy and difficult laryngoscope ;difference of TIM area between easy and difficult laryngoscope ;difference of height between easy and difficult laryngoscope | — |
Secondary
| Measure | Time frame |
|---|---|
| height;weight;Mallampati classification;thyromental distance;the angle of neck extension ;Cormack-Lehane grade ;body-mass index | — |
Countries
Korea, Republic of
Contacts
Seoul National University Bundang Hospital