The Ideal Length of the Nasotracheal Tube Considering Nasotracheal Tube Size

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

146 participants

Study Classification

OBSERVATIONAL

Study Start Date

2017-09-25

Study Completion Date

2018-12-06

Brief Summary

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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 the appropriateness of the tube depth and to suggest the ideal length of the nasotracheal tube during the intubation of the selected tracheal tube in consideration of the size of the nasal cavity in Koreans. 146 patients (73 males and 73 females) who are scheduled for nasal intubation for general anesthesia will be enrolled. The primary outcome is the ideal length of tube that allows the distance from the vocal cords to the proximal portion of the tube cuff to be greater than 2 cm and the tip of the intubated tube to be located 5 ± 2 cm above the tracheal carina. The size of nostril, length from the nare to the carina and vocal cord are measured.

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Detailed Description

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Conditions

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Nasotracheal Intubation for General Anesthesia

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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male

No interventions assigned to this group

female

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

1\. Patients who are scheduled for nasotracheal intubation for general anesthesia

Exclusion Criteria

1. age\<20 years
2. ASA class III or more
3. pregnancy
4. emergency surgery
5. nasal airway disease
6. expected difficult intubation (difficult intubation history, Modified Mallampati score 4, mouth opening \<2cm, facial anomaly)
7. cervical movement disorder (cervical disease, cervical pain)

Minimum Eligible Age

20 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No