Effect of Different Nasotracheal Tubes on Tube Passage

Study Overview
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Brief Summary
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The purpose of the study is to find out the clinical effects that can be obtained during nasotracheal intubation when using velvet-soft PVC tube compared to conventional polyvinylchloride(=PVC) tube.

Detailed Description
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The hypothesis of this study is that the velvet-soft PVC tube can advanced from the nasal cavity to the oral cavity through the posterior wall of the pharynx more smoothly than conventional PVC tube, thus reducing blockade of tube advancement, nasal/pharyngeal mucosal bleeding, and intubation time. In addition, investigators would like to compare the technique of nasal intubation using by connecting rubber suction catheter to PVC tube tip.

Official Title
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Comparison of the Effect of Tube Type and Intubation Technique on Nasopharyngeal Passage During Nasotracheal Intubation

Conditions
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Sialolithiasis

Intervention / Treatment
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* Device: nasotracheal tube (Ring-Adair-Elwin)
* Device: nasotracheal tube (Ring-Adair-Elwin)
* Device: nasotracheal tube (portex)


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: The patients who need to nasotracheal intubation for surgery age: 19 years old or more Exclusion Criteria: patient refusal nasal deformity history of previous moderate degree of epistaxis

Ages Eligible for Study
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Minimum Age: 19 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: conventional PVC tube<br>When performing nasotracheal intubation, clinicians use the conventional PVC tube. | Device: nasotracheal tube (Ring-Adair-Elwin)<br>* different materials for nasotracheal intubation conventional PVC tube<br>* Other names: nasal RAE (Ring-Adair-Elwin) tube;|
| Experimental: PVC tube with rubber suction catheter<br>When performing nasotracheal intubation, clinicians use the conventional PVC tube + rubber suction catheter. | Device: nasotracheal tube (Ring-Adair-Elwin)<br>* different materials for nasotracheal intubation conventional PVC tube with rubber suction catheter<br>* Other names: nasal RAE (Ring-Adair-Elwin) tube;|
| Experimental: velvet soft PVC tube<br>When performing nasotracheal intubation, clinicians use the velvet soft PVC tube. | Device: nasotracheal tube (portex)<br>* different materials for nasotracheal intubation velvet soft PVC tube.<br>* Other names: portex tube;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| blockade of tube advancement from the nasal cavity to the oral cavity [ during intubation] | When entering a nasotracheal tube from the nasal cavity to the oral cavity before use of laryngoscope in nasotracheal intubation, clinicians sometimes encounter blockade of in tube advancement. The reason is that the direction of the nasotracheal tube and the posterior wall of the nasopharynx are anatomically perpendicular. When advancing the tube from the nasal cavity to the oral cavity, the researcher will evaluate the presence of blockade of tube advancement in the pharynx. (none / present) | During nasotracheal intubation (From the time of insertion of the tube through the nostril to completion of the intubation ) | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Intubation time | the total time of nasotracheal intubation: From the time of insertion of the tube or tube combined with the rubber suction to the completion of nasotracheal intubation | During nasotracheal intubation (From the time of insertion of the tube or tube combined with the rubber suction catheter to the completion of nasotracheal intubation) | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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nasotracheal intubation