Comparison of Different Tools to Facilitate Nasotracheal Tube Placement Under Video-laryngoscope Use

Comparison Techniques of Magill Forceps and Cuff Inflation to Facilitate Nasotracheal Tube Placement Under Video-laryngoscope Use

to investigate the effectiveness of techniques of either using Magill forceps or cuff inflation in facilitation of nasotracheal tube advancement into trachea

Patients who undergo oxo-maxillofacial surgery need naso-tracheal intubation to present good surgical view-field. but, sometimes, the naso-tracheal tube is unable to advance from nasopharynx, oropharynx, into trachea without assistance. Using techniques of either Magill forceps or cuff inflation is advantageous is not determined.

Inclusion Criteria:

1. patients with American Society of Anesthesiologists physical status I-III
2. aged 20-65 years
3. Requiring Nasotracheal Intubation under general anesthesia
4. unlimited mouth open
5. unlimited neck motion

Exclusion Criteria:

1. mouth open < 3 cm
2. Ankylosing arthritis patients.
3. BMI≧35 kg/m2