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

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT02876913
Enrollment
40
Registered
2016-08-24
Start date
2016-08-24
Completion date
2017-06-23
Last updated
2017-09-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Nasotracheal Intubation

Brief summary

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.

Interventions

None listed

Sponsors

Yonsei University
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
20 Years to 70 Years
Healthy volunteers
No

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

Design outcomes

Primary

MeasureTime frameDescription
Proportion of the inappropriate insertion of nasotracheal tube5 minutes after induction of general anesthesiathe inappropriate insertion of nasotracheal tube; the proximal end of tube's cuff is less than 2 cm below vocal cord

Countries

South Korea

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 22, 2026