Evaluation on the Proper Size of the Nasotracheal Tube and Depth in Nasotracheal Intubation: a Preliminary Study

Yonsei University

Status: Completed

Conditions: Nasotracheal Intubation

Study type: Observational

Funder types: Other

Identifiers

NCT02876913

4-2016-0504

Details and patient eligibility

About

The nasotracheal intubation is preferred for oral surgery; it provides an easier view of the surgical field. However, nasotracheal tubes are produced by foreign countries. Tubes are often not fitted in anatomy of Korean people because of small nostril. When the size of the tube is chosen by nostril size, the length of nasotracheal tube is not appropriate to the glottis. The aim of this study is to evaluate on the proper size of the nasotracheal tube and depth in nasotracheal intubation in Korean. Forty patients (20 males and 20 females) who are scheduled for nasal intubation for general anesthesia will be enrolled. The primary outcome is the proportion of patients who are in inappropriate insertion of nasotracheal tube; the proximal end of tube's cuff is less than 2 cm below vocal cord. The size of nostril, length from the nare to the carina and vocal cord are measured.

Enrollment: 40 patients

Sex: All

Ages: 20 to 70 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patients who are scheduled for nasotracheal intubation for general anesthesia

Exclusion criteria

• age < 20 years and age > 70 years
• ASA(American Society of Anesthesiologist) class III or more
• pregnancy
• emergency surgery
• nasal airway disease
• expected difficult intubation (difficult intubation history, Modified Mallampati score 4, mouth opening <2cm, facial anomaly)
• unstable teeth

Trial design

40 participants in 1 patient group

Group Nasotracheal Intubation

Description:

Patients who are scheduled for nasotracheal intubation for general anesthesia