Fingers Hook Technique to Facilitate Nasotracheal Intubation

Tube-Videostylet Assembly for Nasotracheal Intubation Assisted by a Fingers-Hook Technique

to compare either using conventional jaw thrust technique or with a novel fingers-hook technique to facilitate video-stylet assisted nasotracheal intubation

It is necessary to adequately exposure of glottis during naso-tracheal intubation using video-stylet. However, inadequate upward epiglottis or over-elevation of arytenoids all inhibit the tube tip smoothly into trachea. Therefore, the study is to investigate either jaw thrust or fingers-hook technique is advantages of nasotracheal intubation.

Criteria:

Inclusion Criteria:

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

Exclusion Criteria:

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