Evaluation of Clinical Airway Assessments With a Gray Zone Approach

Samsung Medical Center

Status: Completed

Conditions: Difficult Laryngoscopy

Treatments: Other: Measurements of parameters related with physical examinations for difficult airway prediction

Study type: Observational

Funder types: Other

Identifiers

NCT01719848

2012-05-079-001

Details and patient eligibility

About

Failure of advanced airway security has been reported that it could lead lethal complication such as brain hypoxic damage. There have been controversial reports for the airway assessment tests which can predict difficult laryngoscopy. Therefore, we evaluated diagnostic validity of pre-existing airway assessment tests and scoring system using a gray zone approach in patients undergoing general anesthesia required endotracheal intubation.

Full description

POGO(percentage of glottic opening)will be evaluated by an attachable fiberoptic scope (AV scope. CAREtec CO.Ltd, Kangwon-Do, South Korea)

Enrollment: 200 estimated patients

Sex: All

Ages: 20 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• 20 to 80 years old patients undergoing general anesthesia for any operation.

Exclusion criteria

• previous difficult airway history
• upper airway obstruction disease
• congenital disorders that are known to relate with difficult airway
• neurologic symptom associated with neck extension
• emergent operation

Trial design

200 participants in 1 patient group

Preoperative airway examination

Description:

patients undergoing general anesthesia for any surgery

Treatment:

Other: Measurements of parameters related with physical examinations for difficult airway prediction